CN107326928A - A kind of part is related to the construction method in the deeper subsurface garage of basement - Google Patents
A kind of part is related to the construction method in the deeper subsurface garage of basement Download PDFInfo
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- CN107326928A CN107326928A CN201710652945.5A CN201710652945A CN107326928A CN 107326928 A CN107326928 A CN 107326928A CN 201710652945 A CN201710652945 A CN 201710652945A CN 107326928 A CN107326928 A CN 107326928A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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Abstract
It is related to the construction method in the deeper subsurface garage of basement the invention discloses a kind of part, step is as follows：(1) choosing includes the plot of part basement and basement external, determines construction area；(2) the top backfill in construction area is excavated；(3) stand column pile, uplift pile and steel sheet pile are sunk into underground in setting position, repair the destroyed top plate and bottom plate because of each pile body of construction of basement, (4) retain the original top plate and bottom plate of the basement in building enclosure, complete excavation of foundation pit；(5) bottom board, each landing of constructing；In the range of building enclosure, retain the part basis stake of the stake top absolute altitude less than uplift pile of basement.The present invention can be used for building deeper subsurface garage in the region without above ground structure or with dismountable building and with basement, to increase the quantity of underground parking space, the problem of stopping at release is difficult.
Description
Technical field
The present invention relates to the construction method of underground garage, and in particular to a kind of part takes applying for the underground garage of basement
Work method.
Background technology
The quantity in current China's Urban Underground garage is relatively fewer, especially in the larger large- and-medium size cities of the density of population, but
Being that urban area is built-in is provided with substantial amounts of shallow underground room, especially has large area in business district and part construction of residential quarters
Basement, these basement parts turn into market place builet below the ground, partly as underground garage, these basements largely only one layer or
Double-layer structure, the utilization wretched insufficiency of the underground space, part Construction of Basement is in the region between above ground structure, at these
One piece of undeveloped newly-built underground garage in plot is found in region extremely difficult, with being stepped up for car ownership, this
The parking stall in a little existing ground garages and underground garage wretched insufficiency, has started to gradually have influence on the normal trip of people.
At present, the plot of existing basement has inevitably partly been taken in the newly-built underground garage in subregion, how to have ensured
On the basis of the existing normal use of basement, underground garage is built safe efficiently, as required for industry in face of the problem of.
The content of the invention
It is an object of the invention to provide a kind of construction method of underground garage, the construction method is used in occupancy existingly
The newly-built underground garage in subregion of lower room, to increase the quantity of ground parking space, the problem of stopping at release is difficult, specific technical side
Case is as follows：
A kind of part is related to the construction method in the deeper subsurface garage of basement, and it is used for constructing part and is related to existing underground
The underground garage of room, the construction method comprises the following steps：
(1) the occupation of land scope of construction area and underground garage is determined, making the occupation of land scope of underground garage is included existingly
Plot outside the plot of lower room, in addition to existing underground chamber region, wherein without above ground structure in the plot of shared basement, or
With detachable above ground structure；
(2) backfill on basement top in construction area is excavated；
(3) stand column pile and uplift pile are sunk into underground in setting position and reaches setting absolute altitude, make stand column pile and uplift pile
It is passed down through the absolute altitude where the bottom plate of basement；
Steel sheet pile is sunk into underground along setting position and setting absolute altitude is reached, steel sheet pile is passed down through the bottom plate of basement
The absolute altitude at place, steel sheet pile is mutually twisted the building enclosure to form closing；Steel sheet pile is preferred to use U-shaped steel sheet pile, Z-shape steel sheet pile
Or shape for hat steel sheet pile, this several steel sheet pile can be used alone, also combined to use；
And top board construction gateway is opened up on the top plate of the basement in building enclosure；
Stand column pile and uplift pile are located in the region of building enclosure institute corral；
Stand column pile is divided into the first stand column pile and the second stand column pile, and uplift pile is divided into the first uplift pile and the second uplift pile, steel
Sheet pile is divided into the first steel sheet pile, the second steel sheet pile and the 3rd steel sheet pile, wherein the first stand column pile, the first uplift pile and the first steel plate
In the plot of stake room located underground, in the plot of the second stand column pile, the second uplift pile and the second steel sheet pile outdoor located underground,
3rd steel sheet pile intersects with the exterior wall of basement；
First stand column pile, the first uplift pile and the first steel sheet pile are constructed by the following method respectively：
Top plate column stake holes is opened up on the top plate of basement, is opened up on the bottom plate of basement and above-mentioned top plate stand column pile
Hole bottom plate column stake holes opposing upper and lower, then sinks to ground by the first stand column pile along top plate column stake holes and bottom plate column stake holes
Under；Repair top plate column stake holes and bottom plate column stake holes：Repair the steel separated by top plate column stake holes in the top plate of basement
Muscle, water-proofing treatment, the seam between cast concrete closure top plate column stake holes and the first stand column pile are carried out to top plate column stake holes
Gap, makes the first stand column pile be connected on top plate；Repair the reinforcing bar separated by bottom plate column stake holes in the bottom plate of basement, cast
Concrete blocks the gap between bottom plate column stake holes and the first stand column pile, the first stand column pile is connected on bottom plate；
Top plate tensile pile hole is opened up on the top plate of basement, is opened up on the bottom plate of basement and above-mentioned top plate uplift pile
Hole bottom plate tensile pile hole opposing upper and lower, then sinks to ground by the first uplift pile along top plate tensile pile hole and bottom plate tensile pile hole
Under；Repair top plate tensile pile hole and bottom plate tensile pile hole：Repair the steel separated by top plate tensile pile hole in the top plate of basement
Muscle, water-proofing treatment, cast concrete closure top plate tensile pile hole are carried out to top plate tensile pile hole；In the bottom plate for repairing basement
The reinforcing bar separated by bottom plate tensile pile hole, cast concrete closure bottom plate tensile pile hole；
Top plate steel sheet pile groove is opened up on the top plate of basement, is opened up on the bottom plate of basement and above-mentioned top plate steel sheet pile
Groove Bottom Board Steel sheet pile groove opposing upper and lower, then sinks to ground by the first steel sheet pile along top plate steel sheet pile groove and Bottom Board Steel sheet pile groove
Under；Repair top plate steel sheet pile groove and Bottom Board Steel sheet pile groove：Repair the steel separated by top plate steel sheet pile groove in the top plate of basement
Muscle, water-proofing treatment, the seam between cast concrete closure top plate steel sheet pile groove and the first steel sheet pile are carried out to top plate steel sheet pile groove
Gap, makes the first steel sheet pile be connected on top plate；The reinforcing bar separated by Bottom Board Steel sheet pile groove in the bottom plate of basement is repaired, the bottom of to
Gap between the lateral surface of slab sheet pile groove and the first steel sheet pile carries out water-proofing treatment, cast concrete closure Bottom Board Steel sheet pile
Gap between groove and the first steel sheet pile, makes the first steel sheet pile be connected on bottom plate；The lateral surface refers to that steel sheet pile direction is enclosed
Side outside protection structure；
Second stand column pile, the second uplift pile and the second steel sheet pile are constructed by the following method respectively：
Stand column pile, uplift pile and steel sheet pile are sunk to by underground using sinking apparatus respectively；
3rd steel sheet pile is constructed by the following method：
The steel sheet pile being pointed on the exterior wall of basement is constructed by the following method：
Exterior wall steel sheet pile groove is opened up in the exterior wall of basement along setting position first, the exterior wall steel sheet pile groove is downward through ground
The lower member of lower room, and ground of going directly upwards；Then the 3rd steel sheet pile is sunk into underground along exterior wall steel sheet pile groove；Repair exterior wall
Steel sheet pile groove：Gap between the lateral surface of External Wall steel sheet pile groove and the 3rd steel sheet pile carries out water-proofing treatment, pours into a mould concrete
The gap between exterior wall steel sheet pile groove and the lateral surface of the 3rd steel sheet pile is blocked, the 3rd steel sheet pile is connected on exterior wall；
(4) retain the original top plate and bottom plate of the basement in building enclosure, and regard the original top plate in the part as underground
The newly-increased top plate of underground garage in the top plate in garage, cast basement external region, makes the newly-increased top plate and the underground retained
Original top plate of room is collectively forming the top plate of underground garage；
Remove the original column and crossbeam of the basement in building enclosure；
The earthwork in building enclosure is excavated, the excavation until completing foundation ditch；During the earthwork is excavated, synchronous remove is enclosed
The exterior wall of basement in protection structure；
In building enclosure, intermediate plate is poured into a mould in basement external region, make intermediate plate in the horizontal direction with reservation
The bottom plate of basement connects, and is collectively forming the middle plate of underground garage, and plate construction gateway in being set on middle plate；
(5) bottom plate of underground garage is poured into a mould, each landing for underground garage of constructing；
In the range of building enclosure, when the stake bottom absolute altitude of the existing foundation pile of the basement in building enclosure is got off with being less than
During the stake top absolute altitude of the uplift pile in storehouse, before the bottom plate of cast underground garage, first with the stake top mark of the uplift pile of underground garage
On the basis of height, the raised area of the existing foundation pile of basement is amputated, remainder is retained in original place, complete underground
After the amputation of the existing foundation pile of room, then carry out the cast of the bottom plate of underground garage.
In the present invention, before civil engineering, steel sheet pile is sunk into underground first and forms building enclosure, construction area is completed
Limit, to reduce the influence to existing basement.After steel sheet pile, stand column pile and uplift pile to be sunk to setting absolute altitude, repair
The top plate and bottom plate of destroyed basement, and steel sheet pile and stand column pile are connected with top plate and bottom plate, ensure to go along with sb. to guard him first
The structural stability of existing basement outside structure, reduces the influence to basement outside building enclosure, recovers as early as possible outside building enclosure
The use of basement；Secondly, by the use of building enclosure in basement top plate and bottom plate as the horizontal support of foundation ditch, applied in reduction
Expenses of labour is used and improved on the basis of operating efficiency, and the security of underground job can be also improved to greatest extent.
After top plate cut-out of the steel sheet pile groove by basement, the top plate adjacent with steel sheet pile groove turns into a state of encorbelmenting,
The internal stress of basement roof is increased, while the top for completing the steel sheet pile of sinking is also at no restrained condition, top is completed
After the reparation of slab sheet pile groove, can effectively it eliminate by top plate is cut off brought internal stress, while can prevent from constructing
Cheng Zhong, outside body of water is entered in foundation ditch, influence safety and operation.After bottom plate during underground is cut off, the soil body and water in underground
Under the comprehensive function of body and basement own wt, basement bottom board can also produce internal stress, while body of groundwater also can edge
Gap to enter in basement, above-mentioned influence can be reduced after the reparation of Bottom Board Steel board slot is completed in time；Simultaneously as this
The bottom plate of the basement in building enclosure is remained in invention, after being repaired to Bottom Board Steel sheet pile groove, can be avoided in subsequent soil
During side is excavated, the accident such as fracture caused by supporting decrease of the basement in building enclosure.
Compare and remove the top plate and bottom plate of the basement in building enclosure, due to removing the top plate and bottom plate of basement
During, the overall structure of basement is by larger destruction, and the structure of remainder can be to the central area of building enclosure
Extruded, in the case where partly descending soil body flow larger, completed building enclosure avalanche can be made, so as to influence whole
The safety of individual basement.
Before earth excavation, steel sheet pile and stand column pile are connected with top plate and bottom plate first, the underground in building enclosure
In the presence of the top plate and bottom plate of room, the original agent structure of basement is maintained, basement outside building enclosure is being ensure that
While structural stability, the stability of building enclosure also ensure that.
In this application, because underground garage is the part plot that occupies the existing basement in part, underground is occupied again
The plot of outdoor, the exterior wall of part basement is located in the range of newly-built underground garage, and steel sheet pile can be by the exterior wall of basement
Cut-off, in order to avoid being entered in the gap of the outside soil body and water body between steel sheet pile and outer wall of basement in basement,
Complete after the sinking of the 3rd steel sheet pile, it is necessary in time carry out the gap between the lateral surface and outer wall of basement of the 3rd steel sheet pile
Water-proofing treatment and closure, it is ensured that the safe handling of the reservation region of basement.
In this construction method, when stake top of the stake bottom absolute altitude less than the uplift pile of underground garage of the existing foundation pile of basement
It is right without the existing foundation pile of basement is extracted, but on the basis of the stake top absolute altitude of the uplift pile of underground garage during absolute altitude
The existing foundation pile of basement is amputated, and the remaining existing foundation pile of half is retained in original place after amputation, due to existing basis
Stake in surrounding the soil body after prolonged contact, the soil body has formed stronger curable grip to existing foundation pile, will amputate
Existing foundation pile afterwards is retained in original place, can not only exempt the work for extracting existing foundation pile, also eliminate the need existing in extraction
, it is necessary to extracting the workload that stake holes left after existing foundation pile is backfilled after foundation pile.If by existing foundation pile
Extract, the stake holes produced is needed to be filled using concrete or the compound soil body of other suitable fillings, and this is not only added
Workload, is measured the need for also add construction material, increases the construction cost of underground garage.
Before sinking steel sheet pile, first will on the top plate and bottom plate of basement slot so that steel sheet pile can successfully under
It is heavy, it is to avoid steel sheet pile because the top plate and bottom plate of basement have higher hardness, and produces steel sheet pile in sinking watching
Deformation, and then influence the quality of building enclosure；Using fluting design, it can also avoid using steel sheet pile directly through top plate and bottom
During plate, larger vibrations can be caused, the structure to basement causes other destructions.Based on the reason for same, first in basement
Top plate and bottom plate on opened up tensile pile hole and column stake holes.
The existing foundation pile of half after amputation is retained in behind original place, due to the soil body with existing foundation pile by for a long time
Be mutually adapted after, it has also become the soil body around an entirety, existing foundation pile has also become more uniform, if necessary on ground
The bottom increase uplift pile of lower room, can carry out the construction of uplift pile, existing basis directly between the existing foundation pile of basement
The reservation of stake, the normal construction of uplift pile is not influenceed.
In order to not influence the member-retaining portion of original basement and the use of newly-built underground garage, on basement roof
Top plate column stake holes, top plate tensile pile hole and top plate steel sheet pile groove have carried out water-proofing treatment.
Because stand column pile is connected on the top plate and bottom plate of basement, linked together with whole underground garage, simultaneously
The stake bottom absolute altitude of stand column pile is less than the absolute altitude of the bottom plate of underground garage, effect of the stand column pile also with uplift pile.
Because steel sheet pile and the underground soil body have larger contact area, larger frictional force can be produced, except playing
Outside the effect of foundation pit enclosure, certain anti-floating effect may also function as.
The present invention utilizes the existing basement in part, the newly-built underground garage in the region without above ground structure, to expand ground
The quantity on lower parking stall, at least partly solve parking difficulty the problem of, be at present without complete plot be used for build underground garage
Region provides a kind of construction thinking of new underground garage.
Further, the first steel sheet pile in step (3) sinks to underground by the way of segmentation is carried out, specifically using following step
Suddenly：
(3.1) on the top plate of basement excavate first paragraph top plate steel sheet pile groove, on the bottom plate of basement excavate with it is upper
First paragraph top plate steel sheet pile groove first paragraph Bottom Board Steel sheet pile groove opposing upper and lower is stated, then suspends top plate steel sheet pile groove and Bottom Board Steel
The excavation of sheet pile groove, the first steel sheet pile sinks to design mark through first paragraph top plate steel sheet pile groove and first paragraph Bottom Board Steel sheet pile groove
It is high；
(3.2) continue to excavate second segment top plate steel sheet pile groove on the top plate of basement, excavated on the bottom plate of basement
With above-mentioned second segment top plate steel sheet pile groove second segment Bottom Board Steel sheet pile groove opposing upper and lower, top plate steel sheet pile groove and bottom are again paused for
The excavation of slab sheet pile groove, the first steel sheet pile sinks to design through second segment top plate steel sheet pile groove and second segment Bottom Board Steel sheet pile groove
Absolute altitude；
(3.3) continue to excavate the 3rd section of top plate steel sheet pile groove on the top plate of basement, excavated on the bottom plate of basement
With above-mentioned 3rd section of top plate steel sheet pile groove the 3rd section of Bottom Board Steel sheet pile groove opposing upper and lower, top plate steel sheet pile groove and bottom are again paused for
The excavation of slab sheet pile groove, the first steel sheet pile sinks to design through the 3rd section of top plate steel sheet pile groove and the 3rd section of Bottom Board Steel sheet pile groove
Absolute altitude；
(3.4) repeat step (3.3), excavation and steel until completing whole top plate steel sheet pile grooves and Bottom Board Steel sheet pile groove
The sinking of sheet pile；
After the steel sheet pile of part first sinks to designed elevation, start the reinforcing bar that repairing is separated by top plate steel sheet pile groove, with
And carry out water-proofing treatment and cast concrete；With the sinking of steel sheet pile first, progressively repair what is separated by top plate steel sheet pile groove
Reinforcing bar, and water-proofing treatment and cast concrete are carried out, the reparation until completing top plate steel sheet pile groove；
After the steel sheet pile of part first sinks to designed elevation, start the reinforcing bar that repairing is separated by Bottom Board Steel sheet pile groove, pour
Note concrete；With the sinking of the first steel sheet pile, the reinforcing bar separated by Bottom Board Steel sheet pile groove is progressively repaired, and carry out at waterproof
Reason and cast concrete, the reparation until completing Bottom Board Steel sheet pile groove.In the sinking watching of steel sheet pile, preferably make not completing and repair
Length≤6 meter of multiple top plate steel sheet pile groove, do not complete length≤6 meter for the Bottom Board Steel sheet pile groove repaired.
Using excavation section by section top plate steel sheet pile groove and Bottom Board Steel sheet pile groove, while following the sinking of the first steel sheet pile, progressively
Repair top plate steel sheet pile groove and Bottom Board Steel sheet pile groove, it is to avoid top plate steel sheet pile groove and Bottom Board Steel sheet pile groove are long, to greatest extent
Internal stress of the top plate caused by encorbelmenting is reduced, influence of the construction for the existing structure of basement is reduced.It can also keep away simultaneously
Exempt from underground water and enter construction area, especially into in the region of the basement outside building enclosure, even in work progress
In, there is underground water and enter construction area, can be right due to using section construction, and the operation scheme repaired in time
Inlet area is handled in time, is not in large-scale inlet area.It ensure that the safety and underground garage of basement
Construction safety.
Preferably, before being blocked to the gap between bottom plate column stake holes and the first stand column pile, waterproof is carried out first
Processing；Before being blocked to bottom plate tensile pile hole, water-proofing treatment is carried out first；To Bottom Board Steel sheet pile groove and the first steel sheet pile
Before gap between medial surface is blocked, water-proofing treatment is carried out first.
Due to remaining original bottom plate of the basement in building enclosure in the present invention, to give full play to the part backplane
Effect, it is possible to use the part backplane builds the device rooms of underground garage, including as the ventilation passageway of underground garage, so
Effluent part or other discarded objects may be produced, to avoid seepage in the above-mentioned gap of waste water or discarded object from bottom plate is retained
To lower floor's landing, to parking apparatus and stop and cause unnecessary influence.To bottom plate column stake holes, bottom plate resistance to plucking
Stake holes and Bottom Board Steel sheet pile groove are carried out after above-mentioned water-proofing treatment, can be effectively prevented from producing above-mentioned unnecessary influence, maximum
Ensure to limit the normal operation in garage.
Top plate column stake holes is being repaired and during bottom plate column stake holes, by the bar connecting cut off by top plate column stake holes to the
In one stand column pile, by the bar connecting cut off by bottom plate column stake holes to the first stand column pile；Repair top plate steel sheet pile groove and
During Bottom Board Steel sheet pile groove, by the bar connecting cut off by top plate steel sheet pile groove to the first steel sheet pile, it will be cut by Bottom Board Steel sheet pile groove
Disconnected bar connecting is on the first steel sheet pile.
After the bar connecting in top plate and bottom plate to the first stand column pile and the first steel sheet pile, can further improve top plate and
The bonding strength of bottom plate and the first stand column pile and the first steel sheet pile, further promotes the structure formation one inside and outside building enclosure
It is overall, strengthen the member-retaining portion of basement and the safety coefficient of newly-built underground garage.
Water-proofing treatment is carried out to top plate column stake holes using steel plate for sealing water, step is as follows：First by top plate column stake holes
Inner edge is handled, and while reinforcing bar broken end is dug, the inner edge of top plate column stake holes is repaired into stepped, then by sealing
One end of steel plate is welded in the first stand column pile, and the other end is overlapped on the step surface of the inner edge of top plate column stake holes；Water-stopping steel
It can be overlapped between the step surface of the inner edge of plate and top plate column stake holes by the way of connectionless, can also use and be welded on steel
The mode of breaking of muscle and tendon head is overlapped；
Water-proofing treatment is carried out to top plate steel sheet pile groove using steel plate for sealing water, step is as follows：First by top plate steel sheet pile groove
Inner edge is handled, and while reinforcing bar broken end is dug, the inner edge of top plate steel sheet pile groove is repaired into stepped, then by sealing
One end of steel plate is welded on the first steel sheet pile, and the other end is overlapped on the step surface of the inner edge of top plate steel sheet pile groove；Water-stopping steel
It can be overlapped between the step surface of the inner edge of plate and top plate steel sheet pile groove by the way of connectionless, can also use and be welded on steel
The mode of breaking of muscle and tendon head is overlapped；
Water-proofing treatment is carried out to the gap between the lateral surface of Bottom Board Steel sheet pile groove and the first steel sheet pile using steel plate for sealing water,
Step is as follows：The inner edge of Bottom Board Steel sheet pile groove is handled first, while reinforcing bar broken end is dug, by Bottom Board Steel sheet pile groove
Inner edge finishing stepped, then one end of steel plate for sealing water is welded on the first steel sheet pile, the other end is overlapped on Bottom Board Steel
On the step surface of the inner edge of sheet pile groove；It can be used between the step surface of the inner edge of steel plate for sealing water and Bottom Board Steel sheet pile groove connectionless
Mode overlap, can also using be welded on reinforcing bar broken end by the way of be overlapped.
Steel plate for sealing water has certain strength and stiffness, carries out water-proofing treatment using steel plate for sealing water, can not only ensure structure
Water resistance, can also improve the bonding strength between the top plate of basement and stand column pile, and bottom plate and stand column pile, steel sheet pile
Between bonding strength.
Further, an interlayer is built on middle plate.In the prior art, the floor height of basement is general based on 3-3.5 meters,
There is general 1 meter or so of clear height after one layer of landing is built, the distance can not meet one layer of landing of construction, be
The bottom plate of original basement of reservation is made full use of, in this application, an interlayer has been built on plate in this, the interlayer can be with
As the device rooms of underground garage, or the concentration walkway for ventilation shaft or electric wire.Utilize the bottom plate of reservation
Interlayer is built, on the basis of underground garage working security is improved, expenditure of construction can be also reduced, certainly, if basement
Floor height is higher, disclosure satisfy that two layers of landing of construction, as supporting construction, can also build one layer of parking flat by plate using in this
Platform.
Preferably, in work progress, the existing foundation pile of basement is retained in-situ by after partial cutaway
The existing foundation pile in part as underground garage uplift pile.
In work progress, expenditure of construction rationally can be effectively reduced using the existing foundation pile of basement, due to ground
By contacting for a long time between the existing foundation pile and the soil body of lower room, the soil body around existing foundation pile has formed stable
Structure, has stronger curable grip to existing foundation pile, and this part is retained into the in situ existing foundation pile in part is used as resistance to plucking
Stake, can be effectively reduced the quantity of the newly-increased uplift pile of underground garage, can not only improve speed of application, can also reduce resistance to plucking
The expense of stake, so as to reduce the expenditure of construction of whole underground garage.
Further, when the number of plies of basement in construction area is 2 layers or 3 layers, before the first stand column pile of sinking, exist first
Opened up on the intermediate floor of basement with top plate column stake holes and bottom plate column stake holes floor column stake holes opposing upper and lower, then
Sink the first stand column pile；
Before the first uplift pile of sinking, open up anti-with top plate tensile pile hole and bottom plate on the intermediate floor of basement first
Pile pulling hole floor tensile pile hole opposing upper and lower, the first uplift pile of then sinking；
Before first steel sheet pile that sinks, opened up first on the intermediate floor of basement and top plate steel sheet pile groove and Bottom Board Steel
Sheet pile groove floor steel sheet pile groove opposing upper and lower, then sink the first steel sheet pile；Repairing towards on the outside of the first steel sheet pile by building
The reinforcing bar of slab sheet pile groove cut-off, is carried out at waterproof to the gap between the lateral surface of floor steel sheet pile groove and the first steel sheet pile
Reason, the gap between cast concrete closure floor steel sheet pile groove and the lateral surface of the first steel sheet pile, connects the first steel sheet pile
On intermediate floor；
After the connection of above-mentioned first steel sheet pile and intermediate floor is completed, in the bottom plate for carrying out the basement in building enclosure
Before the excavation of the following earthwork, the intermediate floor of the basement in building enclosure is removed.
Or, when the number of plies of basement in construction area is 2 layers or 3 layers, at least retain one layer of intermediate floor；
Before the first stand column pile of sinking, open up vertical with top plate column stake holes and bottom plate on the intermediate floor of basement first
Stanchion hole floor column stake holes opposing upper and lower, the first stand column pile of then sinking；
Before the first uplift pile of sinking, open up anti-with top plate tensile pile hole and bottom plate on the intermediate floor of basement first
Pile pulling hole floor tensile pile hole opposing upper and lower, the first uplift pile of then sinking；
Before first steel sheet pile that sinks, opened up first on the intermediate floor of basement and top plate steel sheet pile groove and Bottom Board Steel
Sheet pile groove floor steel sheet pile groove opposing upper and lower, then sink the first steel sheet pile；Repairing towards on the outside of the first steel sheet pile by building
The reinforcing bar of slab sheet pile groove cut-off, is carried out at waterproof to the gap between the lateral surface of floor steel sheet pile groove and the first steel sheet pile
Reason, the gap between cast concrete closure floor steel sheet pile groove and the lateral surface of the first steel sheet pile, connects the first steel sheet pile
On intermediate floor；
Following processing is done for the intermediate floor of reservation：Repair on the inside of the first steel sheet pile by floor steel sheet pile groove separate
Reinforcing bar, water-proofing treatment, cast concrete closure are carried out to the gap between the medial surface of floor steel sheet pile groove and the first steel sheet pile
Gap between the medial surface of slab sheet pile groove and the first steel sheet pile.
In order to improve the utilization ratio of the underground space, simultaneously because the intermediate floor of basement will compared with its bottom plate thickness and
Weight capacity is weak a lot, and the bearing strength of the intermediate floor of most basements can not reach the requirement of underground garage, therefore,
In this application, when the sinking for completing each pile body, and after connection of the steel sheet pile with the intermediate floor outside building enclosure is completed, both
It is dismountable, the dismounting of intermediate floor is removed under the bottom plate of basement before excavation of earthwork and finished.
Certainly according to different requirements, the intermediate floor of whole intermediate floors or a certain layer can be retained, and with the middle of this
Floor builds interlayer as the increase of middle plate, and the interlayer built is used as the device rooms or ventilation shaft of underground garage
Arrangement space etc.., can also be by the intermediate floor of reservation in water the need for according to difference, you can to retain the original state of intermediate floor
Square to extension, the intermediate floor is set to be covered with whole underground garage in the horizontal direction.
Preferably, the stand column pile of the underground garage is shaped steel prefabricated component or reinforced concrete precast member.Shaped steel prefabricated component
Or the manufacture craft of reinforced concrete precast member has certain codes and standards now, the need for having disclosure satisfy that the application,
Using these parts on the basis of the construction quality of the application is ensured, efficiency of construction and reduction expense can be also improved.
To improve efficiency of construction and improving the effective rate of utilization of the underground space, landing described herein uses steel knot
Structure is made.Steel construction, which has, to occupy little space, the advantage of easy construction, as the main components of underground garage landing,
Made using steel construction, can not only effectively improve construction speed.And because the volume of steel construction is relatively fewer, can carry
The utilization rate of the high underground space, reduces the space-consuming on single parking stall, reduces the expenditure of construction on single parking stall.
After the sinking and the reparation of the top plate of basement for completing each pile body, retain the top plate of the basement in building enclosure
On construction gateway, and construction area is backfilled, recovers road surface unimpeded.Before underground construction is carried out, first by construction area
Backfilled, the influence of Construction on Ground traffic can be reduced to greatest extent, can simultaneously be effectively reduced naked in construction area
The area on ground is leaked, the influence caused due to naked leakage ground to environment is reduced.
Brief description of the drawings
Fig. 1 is the determination scope of construction area in one embodiment, and the boundary of works area shown in Fig. 1 includes part basement area
In domain and the region of basement external, Fig. 1, dotted line area encompassed G represents the region of existing basement, and region F represents ground
The region for the basement that place of getting off is accounted for.
Fig. 2 be in Fig. 1 E-E to profile.
Fig. 3 is to complete the schematic diagram after the sinking of stand column pile, uplift pile and steel sheet pile.
Fig. 4 is to complete the schematic diagram after earth excavation.
Fig. 5 is to complete the schematic diagram after underground garage construction of bottom plates.
Fig. 6 is to construct from bottom to top, completes the schematic diagram after the landing of part.
Fig. 7 is to complete the schematic diagram after all landings, wherein being also built with an interlayer.
Fig. 8 is the schematic diagram for carrying out water-proofing treatment between steel sheet pile and basement using steel plate for sealing water.
Embodiment
Embodiment 1：
Refering to Fig. 1~Fig. 7, in the present embodiment, the deeper subsurface garage of basement is related to using the part in the present invention
Construction method newly-built underground garage in the region for be built with basement.
In the present embodiment, it is divided into two parts for building the plot of underground garage, a part is to be built with basement
Plot, another part is the plot outside the chamber region of underground, and without top-out in the plot of the basement, underground garage is specifically pressed
Following steps are constructed：
(1) the occupation of land scope of construction area and underground garage is determined, making the occupation of land scope of underground garage is included existingly
Plot outside the plot of lower room, in addition to existing underground chamber region, wherein without above ground structure in the plot of shared basement, or
With detachable above ground structure.
Refering to Fig. 1, in Fig. 1, axis 1.~8. and axisFor the axis of existing beneath room, axis
WithFor the subsidence position of steel sheet pile, axisWith axisIntersection point 131 be stand column pile subsidence position, in figure not
Show the subsidence position of uplift pile.
Fig. 2 is the elevation of underground garage construction area, in specially Fig. 1 E-E to profile, the table of mark 100 in figure
Show ground, mark 11 is the earth surface area in the proposed region of underground garage, including the backfill on basement top in construction area
Native region, mark 83 is the column of basement, and mark 81 is the top plate of basement, and mark 82 is the bottom plate of basement, mark 84
For the exterior wall of basement.
(2) Fig. 3 is referred to, the topsoil of the earth surface area 11 in construction area is excavated, including underground in construction area
The backfill on room top, excavating for non-underground chamber region topsoil is defined by the construction elevation for reaching top plate of underground parking garage.
(3) please continue to refer to Fig. 3, stand column pile 13 and uplift pile 19 is sunk into underground in setting position and setting mark is reached
Height, the absolute altitude for making stand column pile 13 and uplift pile 19 be passed down through where the bottom plate 82 of basement.
Steel sheet pile 12 is sunk into underground and setting absolute altitude is reached along the axis of setting, steel sheet pile 12 is passed down through basement
Bottom plate 82 where absolute altitude, steel sheet pile 12 is mutually twisted the building enclosure to form closing.
And top board construction gateway 14 is opened up on the top plate 81 of the basement in building enclosure, open up bottom on bottom plate 82
Plate construction gateway 15.
Stand column pile 13 and uplift pile 19 are located in the region of building enclosure institute corral.
Stand column pile is divided into the first stand column pile and the second stand column pile, and uplift pile is divided into the first uplift pile and the second uplift pile, steel
Sheet pile is divided into the first steel sheet pile, the second steel sheet pile and the 3rd steel sheet pile, wherein the first stand column pile, the first uplift pile and the first steel plate
In the plot of stake room located underground, in the plot of the second stand column pile, the second uplift pile and the second steel sheet pile outdoor located underground,
3rd steel sheet pile intersects with the exterior wall of basement.
First stand column pile, the first uplift pile and the first steel sheet pile are constructed by the following method respectively：
The construction of first stand column pile：
Top plate column stake holes is opened up on the top plate 81 of basement, opens up vertical with above-mentioned top plate on the bottom plate 82 of basement
Stanchion hole bottom plate column stake holes opposing upper and lower, then sinks to the first stand column pile along top plate column stake holes and bottom plate column stake holes
Underground.Repair top plate column stake holes and bottom plate column stake holes：Repair basement top plate in by top plate column stake holes separate
Reinforcing bar, water-proofing treatment is carried out to top plate column stake holes, between cast concrete closure top plate column stake holes and the first stand column pile
Gap, makes the first stand column pile be connected on top plate；The reinforcing bar separated by bottom plate column stake holes in the bottom plate of basement is repaired, is poured
The gap between concrete closure bottom plate column stake holes and the first stand column pile is noted, the first stand column pile is connected on bottom plate.
The construction of first uplift pile：
Top plate tensile pile hole is opened up on the top plate of basement, is opened up on the bottom plate of basement and above-mentioned top plate uplift pile
Hole bottom plate tensile pile hole opposing upper and lower, then sinks to ground by the first uplift pile along top plate tensile pile hole and bottom plate tensile pile hole
Under；Repair top plate tensile pile hole and bottom plate tensile pile hole：Repair the steel separated by top plate tensile pile hole in the top plate of basement
Muscle, water-proofing treatment, cast concrete closure top plate tensile pile hole are carried out to top plate tensile pile hole；In the bottom plate for repairing basement
The reinforcing bar separated by bottom plate tensile pile hole, cast concrete closure bottom plate tensile pile hole.
The construction of first steel sheet pile：
Steel sheet pile sinks to underground by the way of segmentation is carried out, specifically using following steps：
(3.1) on the top plate of basement excavate first paragraph top plate steel sheet pile groove, on the bottom plate of basement excavate with it is upper
First paragraph top plate steel sheet pile groove first paragraph Bottom Board Steel sheet pile groove opposing upper and lower is stated, then suspends top plate steel sheet pile groove and Bottom Board Steel
The excavation of sheet pile groove, the first steel sheet pile sinks to design mark through first paragraph top plate steel sheet pile groove and first paragraph Bottom Board Steel sheet pile groove
It is high.
(3.2) continue to excavate second segment top plate steel sheet pile groove on the top plate of basement, excavated on the bottom plate of basement
With above-mentioned second segment top plate steel sheet pile groove second segment Bottom Board Steel sheet pile groove opposing upper and lower, top plate steel sheet pile groove and bottom are again paused for
The excavation of slab sheet pile groove, the first steel sheet pile sinks to design through second segment top plate steel sheet pile groove and second segment Bottom Board Steel sheet pile groove
Absolute altitude.
(3.3) continue to excavate the 3rd section of top plate steel sheet pile groove on the top plate of basement, excavated on the bottom plate of basement
With above-mentioned 3rd section of top plate steel sheet pile groove the 3rd section of Bottom Board Steel sheet pile groove opposing upper and lower, top plate steel sheet pile groove and bottom are again paused for
The excavation of slab sheet pile groove, the first steel sheet pile sinks to design through the 3rd section of top plate steel sheet pile groove and the 3rd section of Bottom Board Steel sheet pile groove
Absolute altitude.
(3.4) repeat step (3.3), the excavation and the until completing whole top plate steel sheet pile grooves and Bottom Board Steel sheet pile groove
The sinking of one steel sheet pile；
After the steel sheet pile of part first sinks to designed elevation, start the reinforcing bar that repairing is separated by top plate steel sheet pile groove, with
And carry out water-proofing treatment and cast concrete；With the sinking of the first steel sheet pile, progressively repair what is separated by top plate steel sheet pile groove
Reinforcing bar, and water-proofing treatment and cast concrete are carried out, the reparation until completing top plate steel sheet pile groove；
After the steel sheet pile of part first sinks to designed elevation, start the reinforcing bar that repairing is separated by Bottom Board Steel sheet pile groove, pour
Note concrete；With the sinking of the first steel sheet pile, the reinforcing bar separated by Bottom Board Steel sheet pile groove is progressively repaired, and carry out at waterproof
Reason and cast concrete, the reparation until completing Bottom Board Steel sheet pile groove.
In the present embodiment, referring to Fig. 8, the specific reparation flow of top plate steel sheet pile groove is：
The inner edge of top plate steel sheet pile groove is handled first, while reinforcing bar broken end 3 is dug, by top plate steel sheet pile groove
Inner edge finishing stepped, reinforcing bar broken end 3 is connected on steel sheet pile 12, then one end of steel plate for sealing water 2 is welded on
On steel sheet pile 12, the other end is overlapped on the step surface of the inner edge of top plate steel sheet pile groove, is completed water-proofing treatment, is then poured into a mould coagulation
Soil, makes in the gap that concrete will be filled between top plate steel sheet pile groove and the first steel sheet pile.The reparation of top plate steel sheet pile groove with
Carried out with the sinking of the first steel sheet pile, after the sinking of the first steel sheet pile of a part is completed, it is necessary to having completed what is sunk
Top plate steel sheet pile groove is repaired, and the length for not completing the top plate steel sheet pile groove repaired is controlled in 6 meters, does not exceed 6 meters.
The reparation of Bottom Board Steel sheet pile groove is similar with the reparation of top plate steel sheet pile groove, can also refer to Fig. 8, specific to repair stream
Cheng Wei：The inner edge of Bottom Board Steel sheet pile groove is handled first, while reinforcing bar broken end is dug, by Bottom Board Steel sheet pile groove
Edge repairs stepped, and reinforcing bar broken end is connected on steel sheet pile, then one end of steel plate for sealing water is welded on steel sheet pile,
The other end is overlapped on the step surface of the inner edge of Bottom Board Steel sheet pile groove, is completed water-proofing treatment, is then poured into a mould concrete, make concrete
In the gap that will be filled between Bottom Board Steel sheet pile groove and the first steel sheet pile.The reparation of Bottom Board Steel sheet pile groove follows the first steel sheet pile
Sinking carry out, complete a part the first steel sheet pile sinking after, it is necessary to completed sink Bottom Board Steel sheet pile groove
Repaired, the length for not completing the Bottom Board Steel sheet pile groove repaired is controlled in 6 meters, does not exceed 6 meters.
In the present embodiment, the seam inside and outside the first steel sheet pile between top plate steel sheet pile groove and Bottom Board Steel sheet pile groove
Gap employ steel plate for sealing water carry out water-proofing treatment, according to difference the need for, in other embodiments, the first steel sheet pile medial surface
Gap between Bottom Board Steel sheet pile groove can be without carrying out water-proofing treatment using steel plate for sealing water.Herein, steel sheet pile medial surface
Refer to steel sheet pile towards the side inside building enclosure, the lateral surface of steel sheet pile refers to steel sheet pile towards the side outside building enclosure
Face, i.e. the first steel sheet pile medial surface refer to the first steel sheet pile towards the side inside building enclosure.
Repair reparation of the idiographic flow of top plate column stake holes and bottom plate column stake holes with repairing top plate steel sheet pile groove similar,
The reparation flow of above-mentioned top plate steel sheet pile groove is referred to, is repeated no more.
Repair reparation of the idiographic flow of top plate tensile pile hole and bottom plate tensile pile hole with repairing top plate steel sheet pile groove similar,
Simply steel plate for sealing water need not be connected in uplift pile, and the reinforcing bar dug need not be also connected in uplift pile, it is only necessary to will be by
The reinforcing bar of cut-out is reconnected, and is specifically referred to the reparation flow of above-mentioned top plate steel sheet pile groove, is repeated no more.
Second stand column pile, the second uplift pile and the second steel sheet pile are constructed by the following method respectively：
Stand column pile, uplift pile and steel sheet pile are sunk to by underground using sinking apparatus respectively.
3rd steel sheet pile is constructed by the following method：
The 3rd steel sheet pile being pointed on the exterior wall of basement is constructed by the following method：
Exterior wall steel sheet pile groove is opened up in the exterior wall of basement along setting position first, the exterior wall steel sheet pile groove is downward through ground
The lower member of lower room, and ground of going directly upwards；Then the 3rd steel sheet pile is sunk into underground along exterior wall steel sheet pile groove；Repair exterior wall
Steel sheet pile groove：Gap between the lateral surface of External Wall steel sheet pile groove and the 3rd steel sheet pile carries out water-proofing treatment, pours into a mould concrete
The gap between exterior wall steel sheet pile groove and the lateral surface of the 3rd steel sheet pile is blocked, the 3rd steel sheet pile is connected on exterior wall；
The reparation of exterior wall steel sheet pile groove is repeated no more with reference to the reparation flow of above-mentioned top plate steel sheet pile groove.
(4) referring to Fig. 4, retaining the original top plate 81 and bottom plate 82 of the basement in building enclosure, and the part is former
There is top plate of the top plate as underground garage, and with the benchmark of original top plate 81 of the basement in building enclosure, pour into a mould basement
The newly-increased top plate 31 of underground garage in perimeter, original top plate 81 is identical with the absolute altitude of the lower surface of newly-increased top plate 31, former
There are top plate 81 and newly-increased top plate 31 to be collectively forming the top plate of underground garage.In the present embodiment, also set up on newly-increased top plate 31
There is a second top board construction gateway 16, transported with the turnover and the earthwork of convenient construction machinery.
The original column and crossbeam of the basement in building enclosure are removed, excavates first and completes to be located at ground in building enclosure
The earthwork of lower outdoor, the then earthwork of the bottom plate of the basement in excavation building enclosure below 82, until completing opening for foundation ditch
Dig, in Fig. 4, mark 20 represents to complete the bottom surface of foundation ditch after earth excavation.
During the earthwork is excavated, the synchronous exterior wall for removing the basement in building enclosure.
Referring to Fig. 5, in building enclosure, intermediate plate 32 being poured into a mould in basement external region, makes intermediate plate 32 in water
The bottom plate 82 of basement of the plane with retaining connects, and is collectively forming the middle plate of underground garage, and the reserved middle plate on intermediate plate 32
Construction gateway 18.
(5) please continue to refer to Fig. 5, after the sinking and the reparation of the top plate of basement for completing each pile body, retain top plate and apply
The top board construction gateway 16 of work gateway 14 and second, and construction area 11 is backfilled, recover road surface unimpeded.
The bottom plate 21 of underground garage is poured into a mould, each uplift pile 19 is connected on bottom plate 21.Constructed first basement refering to Fig. 6
Each landing 22 of the bottom plate below 82.Refering to Fig. 7, the landing 23 of the bottom plate more than 82 for basement of then constructing.
In the present embodiment, basement is single layer structure, and the floor height of the basement is 3.5 meters, and the floor height of landing 23 is 2.5 meters, still
Remaining 1 meter of space, in the present embodiment, using this 1 meter of space, an interlayer 24 has been built on middle plate, the interlayer 24 is used as ground
The device rooms in lower garage and the layout area of ventilation shaft.
In the present embodiment, because the stake bottom absolute altitude of the existing foundation pile of the basement in building enclosure is higher than underground garage
Uplift pile stake top absolute altitude, therefore in the present embodiment, the existing foundation pile of above-mentioned basement is all removed.
It is appreciated that in other embodiments, when the stake bottom absolute altitude of the existing foundation pile in building enclosure is got off with being less than
During the stake top absolute altitude of the uplift pile in storehouse, before the bottom plate of cast underground garage, first with the stake top mark of the uplift pile of underground garage
On the basis of height, the raised area of the existing foundation pile of basement is amputated, remainder is retained in original place, complete underground
After the amputation of the existing foundation pile of room, then carry out the cast of the bottom plate of underground garage.
In work progress, according to construction speed, machine constructs out the second top board construction gateway 16, middle plate in due course
Entrance 18 and construction of bottom plates gateway 15 are closed, and top board construction gateway 14 retains, and are used as ventilation import.
In the present embodiment, the stand column pile of underground garage is made using H profile steel, certainly according to specific construction requirement, is stood
Stanchion can also be made using other shaped steel, such as channel-section steel, steel pipe, and certain stand column pile can also be mixed using its reinforcing bar
Solidifying soil prefabricated component.
Landing in the present embodiment uses structure steel fabrication.
Embodiment 2
In the present embodiment, the basement of construction area is double-decker, and the present embodiment is substantially the same manner as Example 1, its
Difference is：
Before the first stand column pile of sinking, open up vertical with top plate column stake holes and bottom plate on the intermediate floor of basement first
Stanchion hole floor column stake holes opposing upper and lower, the first stand column pile of then sinking.
Before the first uplift pile of sinking, open up anti-with top plate tensile pile hole and bottom plate on the intermediate floor of basement first
Pile pulling hole floor tensile pile hole opposing upper and lower, the first uplift pile of then sinking.
Before first steel sheet pile that sinks, opened up first on the intermediate floor of basement and top plate steel sheet pile groove and Bottom Board Steel
Sheet pile groove floor steel sheet pile groove opposing upper and lower, then sink the first steel sheet pile；Simultaneously repair the first steel sheet pile on the outside of by building
The reinforcing bar of slab sheet pile groove cut-off, is carried out at waterproof to the gap between the lateral surface of floor steel sheet pile groove and the first steel sheet pile
Reason, the gap between cast concrete closure floor steel sheet pile groove and the first steel sheet pile, makes the first steel sheet pile be connected between building
On plate.Wherein water-proofing treatment is identical with the water-proofing treatment of the top plate steel sheet pile groove of embodiment 1, repeats no more.
After the connection of above-mentioned first steel sheet pile and intermediate floor is completed, in the bottom plate for carrying out the basement in building enclosure
Before the excavation of the following earthwork, the intermediate floor of the basement in building enclosure is removed.
It is appreciated that when the basement of construction area is three-decker, being referred to above-mentioned construction method and carrying out, no longer go to live in the household of one's in-laws on getting married
State.
It is appreciated that in other embodiments, the intermediate floor of basement retains, and does as follows to the intermediate floor of reservation
Processing：Repairing is towards the reinforcing bar separated by floor steel sheet pile groove on the inside of the first steel sheet pile, to floor steel sheet pile groove and the first steel
Gap between the medial surface of sheet pile carries out the inner side of water-proofing treatment, cast concrete plugging plate steel sheet pile groove and the first steel sheet pile
Gap between face.The basement intermediate floor of reservation, plate in being used as, and an interlayer is built again, installed as equipment
Area, airduct passage or temporary storage area.
, can also be by the middle building of reservation it is appreciated that the need for according to difference, you can to retain the original state of intermediate floor
Plate extends in the horizontal direction, the intermediate floor is covered with whole underground garage in the horizontal direction.
Claims (10)
1. a kind of part is related to the construction method in the deeper subsurface garage of basement, it is used for constructing part and is related to existing basement
Underground garage, the construction method is characterised by, is comprised the following steps：
(1) the occupation of land scope of construction area and underground garage is determined, making the occupation of land scope of underground garage includes existing basement
Plot, in addition to the plot outside existing underground chamber region wherein without above ground structure in the plot of shared basement, or has
Detachable above ground structure；
(2) backfill on basement top in construction area is excavated；
(3) stand column pile and uplift pile are sunk into underground in setting position and reaches setting absolute altitude, make stand column pile and uplift pile downward
Through the absolute altitude where the bottom plate of basement；
Steel sheet pile is sunk into underground along setting position and setting absolute altitude is reached, steel sheet pile is passed down through where the bottom plate of basement
Absolute altitude, steel sheet pile is mutually twisted the building enclosure to form closing；
And top board construction gateway is opened up on the top plate of the basement in building enclosure；
Stand column pile and uplift pile are located in the region of building enclosure institute corral；
Stand column pile is divided into the first stand column pile and the second stand column pile, and uplift pile is divided into the first uplift pile and the second uplift pile, steel sheet pile
It is divided into the first steel sheet pile, the second steel sheet pile and the 3rd steel sheet pile, wherein the first stand column pile, the first uplift pile and the first steel sheet pile position
In in the plot of basement, in the plot of the second stand column pile, the second uplift pile and the second steel sheet pile outdoor located underground, the 3rd
Steel sheet pile intersects with the exterior wall of basement；
First stand column pile, the first uplift pile and the first steel sheet pile are constructed by the following method respectively：
Top plate column stake holes is opened up on the top plate of basement, opened up on the bottom plate of basement with above-mentioned top plate column stake holes
Relative bottom plate column stake holes, then sinks to underground by the first stand column pile along top plate column stake holes and bottom plate column stake holes down；Repair
Multiple top plate column stake holes and bottom plate column stake holes：The reinforcing bar separated by top plate column stake holes in the top plate of basement is repaired, it is right
Top plate column stake holes carries out water-proofing treatment, and the gap between cast concrete closure top plate column stake holes and the first stand column pile makes
First stand column pile is connected on top plate；The reinforcing bar separated by bottom plate column stake holes in the bottom plate of basement is repaired, coagulation is poured into a mould
The stifled gap between bottom plate column stake holes and the first stand column pile of grave, makes the first stand column pile be connected on bottom plate；
Top plate tensile pile hole is opened up on the top plate of basement, opened up on the bottom plate of basement with above-mentioned top plate tensile pile hole
Relative bottom plate tensile pile hole, then sinks to underground by the first uplift pile along top plate tensile pile hole and bottom plate tensile pile hole down；Repair
Multiple top plate tensile pile hole and bottom plate tensile pile hole：The reinforcing bar separated by top plate tensile pile hole in the top plate of basement is repaired, it is right
Top plate tensile pile hole carries out water-proofing treatment, cast concrete closure top plate tensile pile hole；Repair basement bottom plate in the bottom of by
The reinforcing bar of plate tensile pile hole cut-off, cast concrete closure bottom plate tensile pile hole；
Top plate steel sheet pile groove is opened up on the top plate of basement, opened up on the bottom plate of basement with above-mentioned top plate steel sheet pile groove
Relative Bottom Board Steel sheet pile groove, then sinks to underground by the first steel sheet pile along top plate steel sheet pile groove and Bottom Board Steel sheet pile groove down；Repair
Multiple top plate steel sheet pile groove and Bottom Board Steel sheet pile groove：The reinforcing bar separated by top plate steel sheet pile groove in the top plate of basement is repaired, it is right
Top plate steel sheet pile groove carries out water-proofing treatment, and the gap between cast concrete closure top plate steel sheet pile groove and the first steel sheet pile makes
First steel sheet pile is connected on top plate；The reinforcing bar separated by Bottom Board Steel sheet pile groove in the bottom plate of basement is repaired, to Bottom Board Steel
Gap between the lateral surface of sheet pile groove and the first steel sheet pile carries out water-proofing treatment, cast concrete closure Bottom Board Steel sheet pile groove with
Gap between first steel sheet pile, makes the first steel sheet pile be connected on bottom plate；The lateral surface refers to that steel sheet pile direction goes along with sb. to guard him knot
Side outside structure；
Second stand column pile, the second uplift pile and the second steel sheet pile are constructed by the following method respectively：
Stand column pile, uplift pile and steel sheet pile are sunk to by underground using sinking apparatus respectively；
3rd steel sheet pile is constructed by the following method：
The 3rd steel sheet pile being pointed on the exterior wall of basement is constructed by the following method：
Exterior wall steel sheet pile groove is opened up in the exterior wall of basement along setting position first, the exterior wall steel sheet pile groove is downward through basement
Lower member, and upwards go directly ground；Then the 3rd steel sheet pile is sunk into underground along exterior wall steel sheet pile groove；Repair exterior wall steel plate
Stake groove：Gap between the lateral surface of External Wall steel sheet pile groove and the 3rd steel sheet pile carries out water-proofing treatment, cast concrete closure
Gap between the lateral surface of exterior wall steel sheet pile groove and the 3rd steel sheet pile, makes the 3rd steel sheet pile be connected on exterior wall；
(4) retain the original top plate and bottom plate of the basement in building enclosure, and regard the original top plate in the part as underground garage
Top plate, the newly-increased top plate of the underground garage in cast basement external region makes the newly-increased top plate and the basement that retains
Original top plate is collectively forming the top plate of underground garage；
Remove the original column and crossbeam of the basement in building enclosure；
The earthwork in building enclosure is excavated, the excavation until completing foundation ditch；During the earthwork is excavated, synchronous remove goes along with sb. to guard him knot
The exterior wall of basement in structure；
In building enclosure, intermediate plate is poured into a mould in basement external region, makes intermediate plate in horizontal plane and the basement of reservation
Bottom plate connect, be collectively forming the middle plate of underground garage, and plate construction gateway in being set on middle plate；
(5) bottom plate of underground garage is poured into a mould, each landing for underground garage of constructing；
In the range of building enclosure, when the stake bottom absolute altitude of the existing foundation pile of the basement in building enclosure is less than underground garage
During the stake top absolute altitude of uplift pile, cast underground garage bottom plate before, first using the stake top absolute altitude of the uplift pile of underground garage as
Benchmark, the raised area of the existing foundation pile of basement is amputated, remainder is retained in original place, completes basement
After the amputation of existing foundation pile, then carry out the cast of the bottom plate of underground garage.
2. construction method according to claim 1, it is characterised in that
The first steel sheet pile in step (3) sinks to underground by the way of segmentation is carried out, specifically using following steps：
(3.1) first paragraph top plate steel sheet pile groove is excavated on the top plate of basement, is excavated on the bottom plate of basement and above-mentioned the
One section of top plate steel sheet pile groove first paragraph Bottom Board Steel sheet pile groove opposing upper and lower, then suspends top plate steel sheet pile groove and Bottom Board Steel sheet pile
The excavation of groove, the first steel sheet pile sinks to designed elevation through first paragraph top plate steel sheet pile groove and first paragraph Bottom Board Steel sheet pile groove；
(3.2) continue on the top plate of basement excavate second segment top plate steel sheet pile groove, on the bottom plate of basement excavate with it is upper
Second segment top plate steel sheet pile groove second segment Bottom Board Steel sheet pile groove opposing upper and lower is stated, top plate steel sheet pile groove and Bottom Board Steel is again paused for
The excavation of sheet pile groove, the first steel sheet pile sinks to design mark through second segment top plate steel sheet pile groove and second segment Bottom Board Steel sheet pile groove
It is high；
(3.3) continue on the top plate of basement excavate the 3rd section of top plate steel sheet pile groove, on the bottom plate of basement excavate with it is upper
The 3rd section of top plate steel sheet pile groove the 3rd section of Bottom Board Steel sheet pile groove opposing upper and lower is stated, top plate steel sheet pile groove and Bottom Board Steel is again paused for
The excavation of sheet pile groove, the first steel sheet pile sinks to design mark through the 3rd section of top plate steel sheet pile groove and the 3rd section of Bottom Board Steel sheet pile groove
It is high；
(3.4) repeat step (3.3), excavation and the first steel until completing whole top plate steel sheet pile grooves and Bottom Board Steel sheet pile groove
The sinking of sheet pile；
After the steel sheet pile of part first sinks to designed elevation, start the reinforcing bar that repairing is separated by top plate steel sheet pile groove, Yi Jijin
Row water-proofing treatment and cast concrete；With the sinking of the first steel sheet pile, the reinforcing bar separated by top plate steel sheet pile groove is progressively repaired,
And water-proofing treatment and cast concrete are carried out, the reparation until completing top plate steel sheet pile groove；
After the steel sheet pile of part first sinks to designed elevation, start the reinforcing bar that repairing is separated by Bottom Board Steel sheet pile groove, cast is mixed
Solidifying soil；With the sinking of the first steel sheet pile, progressively repair the reinforcing bar separated by Bottom Board Steel sheet pile groove, and carry out water-proofing treatment and
Concrete is poured into a mould, the reparation until completing Bottom Board Steel sheet pile groove.
3. construction method according to claim 2, it is characterised in that in the sinking watching of the first steel sheet pile, is not completed
Length≤6 meter of the top plate steel sheet pile groove of reparation, do not complete length≤6 meter for the Bottom Board Steel sheet pile groove repaired.
4. the construction method according to Claims 2 or 3, it is characterised in that
Before being blocked to the gap between bottom plate column stake holes and the first stand column pile, water-proofing treatment is carried out first；
Before being blocked to bottom plate tensile pile hole, water-proofing treatment is carried out first；
Before being blocked to the gap between Bottom Board Steel sheet pile groove and the first steel sheet pile medial surface, water-proofing treatment is carried out first.
5. the construction method according to Claims 2 or 3, it is characterised in that
When repairing top plate column stake holes and bottom plate column stake holes, the bar connecting cut off by top plate column stake holes is stood to first
On stanchion, by the bar connecting cut off by bottom plate column stake holes to the first stand column pile；
When repairing top plate steel sheet pile groove and Bottom Board Steel sheet pile groove, by the bar connecting cut off by top plate steel sheet pile groove to the first steel
On sheet pile, by the bar connecting cut off by Bottom Board Steel sheet pile groove to the first steel sheet pile.
6. construction method according to claim 1, it is characterised in that
Water-proofing treatment is carried out to top plate column stake holes using steel plate for sealing water, step is as follows：First by the inner edge of top plate column stake holes
Handled, while reinforcing bar broken end is dug, stepped is repaired into the inner edge of top plate column stake holes, then by steel plate for sealing water
One end be welded in the first stand column pile, the other end is overlapped on the step surface of the inner edge of top plate column stake holes；
Water-proofing treatment is carried out to top plate steel sheet pile groove using steel plate for sealing water, step is as follows：First by the inner edge of top plate steel sheet pile groove
Handled, while reinforcing bar broken end is dug, stepped is repaired into the inner edge of top plate steel sheet pile groove, then by steel plate for sealing water
One end be welded on the first steel sheet pile, the other end is overlapped on the step surface of the inner edge of top plate steel sheet pile groove；
Water-proofing treatment, step are carried out to the gap between the lateral surface of Bottom Board Steel sheet pile groove and the first steel sheet pile using steel plate for sealing water
It is as follows：The inner edge of Bottom Board Steel sheet pile groove is handled first, while reinforcing bar broken end is dug, by Bottom Board Steel sheet pile groove
Edge repairs stepped, then one end of steel plate for sealing water is welded on the first steel sheet pile, the other end is overlapped on Bottom Board Steel sheet pile
On the step surface of the inner edge of groove.
7. construction method according to claim 1 a, it is characterised in that interlayer is built on middle plate.
8. construction method according to claim 1, it is characterised in that
In work progress, the existing foundation pile of basement is made by the existing foundation pile in in-situ part after partial cutaway, is retained
For the uplift pile of underground garage.
9. construction method according to claim 1, it is characterised in that
When the number of plies of basement in construction area is 2 layers or 3 layers,
Before the first stand column pile of sinking, opened up first on the intermediate floor of basement and top plate column stake holes and bottom plate stand column pile
Hole floor column stake holes opposing upper and lower, the first stand column pile of then sinking；
Before the first uplift pile of sinking, opened up first on the intermediate floor of basement and top plate tensile pile hole and bottom plate uplift pile
Hole floor tensile pile hole opposing upper and lower, the first uplift pile of then sinking；
Before first steel sheet pile that sinks, opened up first on the intermediate floor of basement and top plate steel sheet pile groove and Bottom Board Steel sheet pile
Groove floor steel sheet pile groove opposing upper and lower, then sink the first steel sheet pile；Repairing towards on the outside of the first steel sheet pile by floor steel
The reinforcing bar of sheet pile groove cut-off, carries out water-proofing treatment to the gap between the lateral surface of floor steel sheet pile groove and the first steel sheet pile, pours
The gap between concrete closure floor steel sheet pile groove and the lateral surface of the first steel sheet pile is noted, the first steel sheet pile is connected between
On floor；
After the connection of above-mentioned first steel sheet pile and intermediate floor is completed, below the bottom plate for carrying out the basement in building enclosure
The earthwork excavation before, remove building enclosure in basement intermediate floor.
10. the construction method according to claim any one of 1-9, it is characterised in that
When the number of plies of basement in construction area is 2 layers or 3 layers, at least retain one layer of intermediate floor；
Before the first stand column pile of sinking, opened up first on the intermediate floor of basement and top plate column stake holes and bottom plate stand column pile
Hole floor column stake holes opposing upper and lower, the first stand column pile of then sinking；
Before the first uplift pile of sinking, opened up first on the intermediate floor of basement and top plate tensile pile hole and bottom plate uplift pile
Hole floor tensile pile hole opposing upper and lower, the first uplift pile of then sinking；
Before first steel sheet pile that sinks, opened up first on the intermediate floor of basement and top plate steel sheet pile groove and Bottom Board Steel sheet pile
Groove floor steel sheet pile groove opposing upper and lower, then sink the first steel sheet pile；Repairing towards on the outside of the first steel sheet pile by floor steel
The reinforcing bar of sheet pile groove cut-off, carries out water-proofing treatment to the gap between the lateral surface of floor steel sheet pile groove and the first steel sheet pile, pours
The gap between concrete closure floor steel sheet pile groove and the lateral surface of the first steel sheet pile is noted, the first steel sheet pile is connected between
On floor；
Following processing is done for the intermediate floor of reservation：Repairing by floor steel sheet pile groove towards being separated on the inside of the first steel sheet pile
Reinforcing bar, water-proofing treatment, cast concrete closure are carried out to the gap between the medial surface of floor steel sheet pile groove and the first steel sheet pile
Gap between the medial surface of slab sheet pile groove and the first steel sheet pile.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570999A (en) * | 2018-05-07 | 2018-09-25 | 宁波市交通规划设计研究院有限公司 | The construction method that underground speedy way is built with metro shield section point under a kind of major urban arterial highway |
| CN109610442A (en) * | 2018-12-19 | 2019-04-12 | 五冶集团上海有限公司 | Constructing device and its methods and applications after a kind of basement wet spraying pile |
| CN111827705A (en) * | 2019-04-22 | 2020-10-27 | 杭州南联地基基础工程有限公司 | Method for expanding well barrel-shaped underground garage in existing underground garage |
| CN112502464A (en) * | 2020-11-23 | 2021-03-16 | 上海建工二建集团有限公司 | Reverse construction method for extension basement under existing building |
| CN116290867A (en) * | 2023-02-28 | 2023-06-23 | 中国五冶集团有限公司 | Construction method for temporarily supporting and reinforcing basement beam plates by using constructional column core column |
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| CN106013053A (en) * | 2016-05-23 | 2016-10-12 | 江苏东合南岩土科技股份有限公司 | Steel sheet pile support construction method for building underground garage open caisson |
| CN106013052A (en) * | 2016-05-23 | 2016-10-12 | 江苏东合南岩土科技股份有限公司 | Steel sheet pile and open caisson combined underground garage and construction method thereof |
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| KR20090050997A (en) * | 2007-11-16 | 2009-05-20 | 제일구조건설(주) | Basement construction method using the steel pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570999A (en) * | 2018-05-07 | 2018-09-25 | 宁波市交通规划设计研究院有限公司 | The construction method that underground speedy way is built with metro shield section point under a kind of major urban arterial highway |
| CN109610442A (en) * | 2018-12-19 | 2019-04-12 | 五冶集团上海有限公司 | Constructing device and its methods and applications after a kind of basement wet spraying pile |
| CN111827705A (en) * | 2019-04-22 | 2020-10-27 | 杭州南联地基基础工程有限公司 | Method for expanding well barrel-shaped underground garage in existing underground garage |
| CN112502464A (en) * | 2020-11-23 | 2021-03-16 | 上海建工二建集团有限公司 | Reverse construction method for extension basement under existing building |
| CN112502464B (en) * | 2020-11-23 | 2022-07-05 | 上海建工二建集团有限公司 | Reverse construction method for extension basement under existing building |
| CN116290867A (en) * | 2023-02-28 | 2023-06-23 | 中国五冶集团有限公司 | Construction method for temporarily supporting and reinforcing basement beam plates by using constructional column core column |
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| CN107326928B (en) | 2020-04-10 |
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Effective date of registration: 20200928 Address after: 210019 floor 8, building 01, No.8, Bailongjiang East Street, Jianye District, Nanjing City, Jiangsu Province Patentee after: JIANGSU SOUTH & EAST GEOTECHNICAL TECHNOLOGY Co.,Ltd. Address before: The Jianye District of Nanjing City, Jiangsu province 210000 Jiangdong Street No. 18 building 04 Room 201 2 Patentee before: NANJING BABA INTELLIGENT TECHNOLOGY Co.,Ltd. |