CN106638613A - Precast pile composite retaining wall construction method based on foundation pit supporting and underground space structure - Google Patents
Precast pile composite retaining wall construction method based on foundation pit supporting and underground space structure Download PDFInfo
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- CN106638613A CN106638613A CN201610881674.6A CN201610881674A CN106638613A CN 106638613 A CN106638613 A CN 106638613A CN 201610881674 A CN201610881674 A CN 201610881674A CN 106638613 A CN106638613 A CN 106638613A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
- E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces
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- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention provides a precast pile composite retaining wall construction method based on foundation pit supporting. The design depth from the surface of an original soil body to the target position is larger than the length of precast piles. The construction method sequentially includes the following steps that a, pre-sloping construction is conducted at the position from the surface of the original soil body to the preset pile body construction starting position according to the water content and the compactness of the soil body; and b, multiple precast piles are inserted into the soil body to reach the target position from the pile body construction starting position, and the multiple precast piles are circumferentially arranged to form a retaining wall structure used for supporting a foundation pit, wherein the slope formed by sloping construction includes outwards from the foundation pit, and the soil body is prevented from collapsing. Meanwhile, the invention provides an underground space structure.
Description
Technical field
The present invention relates to a kind of base pit stand construction and underground space structure, more particularly to a kind of to be used for pattern foundation pit supporting structure
The compound Retaining wall method of prefabricated pile and underground space structure.
Background technology
In prior art when foundation pit support construction is carried out, generally to carry out keeping off the construction of soil, common soil blocking pile is filling
Note stake, i.e. punching construction is carried out by punch device at default stake position, to projected depth, concrete pile is then injected into；For
Accelerate the native construction speed of gear, the reduction of erection time, constructed using prefabricated pile sometimes, the process of its Specific construction is as follows：Root
There is the prefabricated pile of corresponding length according to projected depth pre-production, prefabricated pile is squeezed into into projected depth from default stake position, from
And form barricade and realize gear soil.Although can be removed from using the prefabricated pile with particular design length is carrying out keeping off soil application man-hour
The time that the construction of stake processed is consumed is carried out, so as to substantially reduce construction speed, in addition, prefabricated pile can also be in pattern foundation pit supporting structure
It is pulled out after the completion of construction, is reused.However, for this special prefabricated pile with fixed length, using existing skill
Retaining wall method in art, in being only used for the foundation pit construction environment that projected depth is more or less the same with the prefabricated pile length.Such as
The prefabricated pile that this has fixed length is applied to base of the projected depth much larger than pile body length by fruit using the construction method of prior art
In the environment of hole, that is, enable and the prefabricated pile is squeezed into projected depth using pile follower method, cannot also be pointed to prefabricated pile top
Soil layer stopped, so as to the soil layer is in the case of pressurized, produce landslide；If guaranteeing to carry out top soil layer
Stop, then pile body cannot be squeezed into projected depth.Cannot in practical application in order to solve this prefabricated pile with fixed length
The problem for matching with formation condition and construction environment completely, prior art proposes a kind of compound barricade of prefabricated pile of longitudinal direction docking
Construction method, i.e. increase squeeze into into soil layer the quantity of prefabricated pile in the vertical, made up in the way of many piles longitudinally docking
The deficiency of single pile length, it is deep for soil thickness or design although this way can play a part of some grade of soil
For degree is much larger than the execution conditions of prefabricated pile length, superposed soil layer can be to superposed prefabricated pile after the docking of longitudinal direction
Very big difficulty and pressure are brought with the interface of the prefabricated pile positioned at bottom, once the mechanical strength of interface cannot bear soil layer
Lateral compression power, then very likely result in broken pile and landslide phenomenon, hidden danger is brought to the security of construction, in addition, adopting on longitudinal direction
Construction is carried out with many fixed length stakes can cause, increase construction cost excessive with stake quantity.It is, therefore, desirable to provide a kind of new construction
Method is avoiding the appearance of such case.
The content of the invention
Therefore, the technical problem to be solved in the present invention is multiple using the existing prefabricated pile with fixed length in prior art
Retaining wall method is closed to cannot can simultaneously take into account strong adaptability, rapid construction, high security during the barricade for being used for pattern foundation pit supporting structure
The characteristics of with low construction cost, so as to the present invention will propose that one kind can be so that accelerating construction progress, security be higher and construction cost
The compound Retaining wall method of the relatively low prefabricated pile for pattern foundation pit supporting structure and underground space structure.
To solve above-mentioned technical problem, the present invention proposes a kind of compound Retaining wall side of prefabricated pile for pattern foundation pit supporting structure
Method, the projected depth of former soil body surface to target location more than the prefabricated pile length, the construction method include successively with
Lower step：A. entered according to the water content and packing of the soil body to predetermined pile body construction original position from the former soil body surface
The advance slope construction of row；B. some prefabricated piles are inserted into the soil body up to the target position from pile body construction original position
Put, and some prefabricated piles circumferentially form the barrier wall structure for carrying out supporting to the foundation ditch；Wherein, it is described to put
The domatic angle that slope construction is formed meets surrounding enviroment demand and must prevent the soil body from caving in.
The above-mentioned prefabricated pile Retaining wall method for pattern foundation pit supporting structure, wherein, what described domatic and horizontal plane was formed
Slope angle is less than or equal to the critical angle for preventing the soil body landslide；And when the pile body constructs original position to the target position
When the distance put is the length more than or equal to the prefabricated pile, the pile body constructs original position at the top of the prefabricated pile
Distance is the critical altitude for preventing the soil body landslide.
The compound Retaining wall method of the above-mentioned prefabricated pile for pattern foundation pit supporting structure, wherein, what the slope construction was formed
It is domatic for stepped, or for planar tilt shape.
The compound Retaining wall method of the above-mentioned prefabricated pile for pattern foundation pit supporting structure, wherein, the prefabricated pile is drum stake, institute
Stating drum stake includes gear soil portion, anchoring section, and connect between the gear soil portion and the anchoring section it is described keep off soil portion with
The connecting portion of the anchoring section；When carrying out the construction of above-mentioned steps b, the gear soil portion is set to insert the drum stake towards the foundation ditch
In entering the soil body.
The compound Retaining wall method of the above-mentioned prefabricated pile for pattern foundation pit supporting structure, wherein, each drum stake also includes setting
The male connector for being placed in the gear soil portion side longitudinal edge and the female connector for being arranged at opposite side longitudinal edge；Carry out above-mentioned
When step b is constructed, by the drum stake by being arranged at the male connector for keeping off soil portion or the female connector and elder generation
While the female connector or the male connector corresponding to the gear soil portion of the drum stake of the insertion soil body connects
Insert the soil body；The some drum stakes are connected to form the drum by the male connector and the female connector
The horizontal docking of stake.
The compound Retaining wall method of the above-mentioned prefabricated pile for pattern foundation pit supporting structure, wherein, the anchoring of the drum stake
Portion also includes being arranged at the male connector of anchoring section side longitudinal edge and being arranged at the female of opposite side longitudinal edge connecting
Part；When carrying out the construction of above-mentioned steps b, by the drum stake by the male connector for being arranged at the anchoring section or the mother
Connector and the female connector or the male connector corresponding to the first anchoring section of the drum stake of the insertion soil body
The soil body is inserted while connection.
The compound Retaining wall method of the above-mentioned prefabricated pile for pattern foundation pit supporting structure, wherein, the male connector is along described
The prominent rail structure that the whole described longitudinal edge of drum stake is continuously arranged, and the female connector is along the whole of the drum stake
The inserting slot construction that the longitudinal edge is continuously arranged；When carrying out the construction of above-mentioned steps b, by the drum stake by described in itself
Prominent rail structure or the inserting slot construction and the inserting slot construction or the prominent rail corresponding to the first drum stake of the insertion soil body
The soil body is inserted while the grafting of structure longitudinal direction.
The compound Retaining wall method of the above-mentioned prefabricated pile for pattern foundation pit supporting structure, wherein, after carrying out the construction of above-mentioned steps b,
Add water preventing ability silk fabric degree mud in the public seam crossing even between part and the female connector, to prevent the soil body in moisture content
Infiltrate through in the foundation ditch from the seam crossing.
The compound Retaining wall method of the above-mentioned prefabricated pile for pattern foundation pit supporting structure, wherein, when carrying out the construction of above-mentioned steps b,
The drum stake is inserted in the soil body by the way of pressure of shaking.
The compound Retaining wall method of the above-mentioned prefabricated pile for pattern foundation pit supporting structure, wherein, by positioned at the institute of the drum stake
The soil body stated between gear soil portion and the anchoring section further beats reality in the way of pressure of ramming or shake.
The present invention discloses a kind of underground space structure of pattern foundation pit supporting structure again, wherein, including：Foundation ditch；Barrier wall structure, including
The some prefabricated piles being used for circumferentially on the inwall of the foundation ditch, for carrying out supporting to the foundation ditch, wherein, it is former
Soil body surface is more than the length of the prefabricated pile to the projected depth of target location；Slope structure, the slope structure is from institute
State former soil body surface and inserting described prefabricated according to the water content and packing of the soil body to predetermined pile body construction original position
In advance slope constructs what is formed before stake, and from institute, foundation ditch is outward-dipping, and prevents the slope structure of the soil body landslide.
The present invention has advantages below relative to prior art：
1. the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention is combined Retaining wall method, and former soil body surface is to target
The projected depth of position is more than the length of the prefabricated pile, and the construction method is comprised the following steps successively：A. from the original soil
Body surface face to predetermined pile body construction original position carries out advance slope construction according to the water content and packing of the soil body；B. will
Some prefabricated piles insert the soil body up to the target location from pile body construction original position, and it is described some it is prefabricated
Stake circumferentially forms the barrier wall structure for carrying out supporting to the foundation ditch；Wherein, what the slope construction was formed is domatic
It is outward-dipping from institute's foundation ditch and prevent soil body landslide above construction method, constructed using advance slope, it is possible to use length
The shorter prefabricated pile of the relative projected depth driven piles carries out the Retaining wall of pattern foundation pit supporting structure, and the prefabricated pile with fixed length is inserted to into mesh
It is not result in that the soil body caves in while cursor position, so that existing prefabricated pile is adapted to more building site conditions, improves
The security of construction；In addition, carrying out pile body construction when being avoided construction barricade simultaneously using prefabricated pile, substantially increase and apply
Work progress, reduces the cost of construction.
2. the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention is combined Retaining wall method, described domatic and horizontal plane
The slope angle for being formed is less than or equal to the critical angle for preventing the soil body landslide；And when the pile body constructs original position to institute
When the distance for stating target location is the length more than or equal to the prefabricated pile, the pile body constructs original position to described prefabricated
The distance in stake top portion is the critical altitude for preventing the soil body landslide.Above construction method can be effectively prevented in work progress
The soil body landslide, it is ensured that the security of construction.
3. the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention is combined Retaining wall method, and the prefabricated pile is drum
Stake, the drum stake includes gear soil portion, anchoring section, and connects the gear soil between the gear soil portion and the anchoring section
Portion and the connecting portion of the anchoring section；When carrying out above-mentioned steps b and constructing, make the gear soil portion towards the foundation ditch by the drum
In the stake insertion soil body.Pile body relatively easily can be inserted by the soil body using above-mentioned drum stake, be also relatively easy to pile body
Extract with recycling from the soil body.
4. the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention is combined Retaining wall method, and each drum stake is also wrapped
Include the male connector for being arranged at the gear soil portion side longitudinal edge and the female connector for being arranged at opposite side longitudinal edge；Carry out
When above-mentioned steps b are constructed, by the drum stake by being arranged at the male connector or the female connector for keeping off soil portion
It is connected with the female connector or the male connector corresponding to the gear soil portion of the drum stake for first inserting the soil body
Insert the soil body simultaneously；The some drum stakes are described to be formed by the male connector and female connector connection
The horizontal docking of drum stake.Drum stake and construction method using said structure, can effectively utilize some drum stake shapes
Into continuous shelves wall construction.
5. the compound Retaining wall method of the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention, the drum stake it is described
Anchoring section also includes being arranged at the male connector of anchoring section side longitudinal edge and is arranged at the mother of opposite side longitudinal edge
Connector；When carrying out above-mentioned steps b and constructing, by the drum stake by being arranged at the male connector or the institute of the anchoring section
State female connector with the female connector or the public affairs corresponding to the first anchoring section of the drum stake of the insertion soil body even
Fitting inserts the soil body while connection.Drum stake and construction method using above structure, can cause to insert the soil body
Some drum stakes and the soil body being located therein form together more thick and heavy barrier wall structure.
6. the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention is combined Retaining wall method, and the male connector is edge
The prominent rail structure that the whole described longitudinal edge of the drum stake is continuously arranged, and the female connector is along the drum stake
The inserting slot construction that the whole longitudinal edge is continuously arranged；When carrying out the construction of above-mentioned steps b, the drum stake is passed through into itself
The prominent rail structure or the inserting slot construction and the inserting slot construction or described corresponding to the first drum stake of the insertion soil body
The soil body is inserted while prominent rail structure longitudinal direction grafting.Drum stake and construction method using above structure, in pitching pile construction
When the step that pile body docked and inserted the soil body can be caused to complete, save construction procedure and improve efficiency of construction, in addition, prominent rail
The cooperation of structure and inserting slot construction can also play preferable guidance quality.
7. the compound Retaining wall method of the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention, carries out above-mentioned steps b and applies
After work, in the public seam crossing even between part and the female connector water preventing ability silk fabric degree mud is added, to prevent the soil body in
Moisture content infiltrate through in the foundation ditch from the seam crossing.Above construction method can effectively in child's soil body moisture content infiltration
Enter the foundation ditch, improve the gear soil and water-retaining capacity of barrier wall structure, it is ensured that the quality of foundation ditch.
8. the compound Retaining wall method of the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention, carries out above-mentioned steps b and applies
In man-hour, the drum stake is inserted in the soil body by the way of pressure of shaking.Pressure of more than shaking construction method can reduce what is constructed
Noise, reaches civilized construction effect；In addition, by vibration can promote be located at drum stake it is described gear soil portion and the anchoring section it
Between soil structures restructuring, improve the soil body itself packing and shearing strength.
9. the prefabricated pile for pattern foundation pit supporting structure of the embodiment of the present invention is combined Retaining wall method, will be positioned at the drum stake
The gear soil portion and the anchoring section between the soil body reality is further beaten in the way of pressure of ramming or shake.Above construction party
Method, the packing that can cause the soil body for being located at the drum stake gear soil portion and the anchoring section is further carried with shearing strength
It is high so that drum stake and the soil body form a stifled closely knit heavy barrier wall structure, are effectively prevented the landslide of the soil body, improve
The water preventing ability of barricade.
10. the embodiment of the present invention, the underground space structure of pattern foundation pit supporting structure, including foundation ditch；Barrier wall structure, including some
The circumferentially prefabricated pile being used on the inwall of the foundation ditch, for carrying out supporting to the foundation ditch, wherein, original soil body surface
Face is more than the length of the prefabricated pile to the projected depth of target location；Slope structure, the slope structure is from the original soil
Body surface face carries out the formation of advance slope construction, and oneself to pile body construction original position according to the water content and packing of the soil body
Institute's foundation ditch is outward-dipping and prevents the slope structure of soil body landslide.Above underground space structure, it is possible to use length is relative
The shorter prefabricated pile of the projected depth of piling carries out the Retaining wall of pattern foundation pit supporting structure, and the prefabricated pile with fixed length is inserted to into target position
It is not result in that the soil body caves in while putting, improves the security of construction；In addition, being avoided construction simultaneously using prefabricated pile
Pile body construction is carried out during barricade, construction speed is substantially increased, the cost of construction is reduced.
Description of the drawings
In order that present disclosure is more likely to be clearly understood, the specific embodiment below according to the present invention is simultaneously combined
Accompanying drawing, the present invention is further detailed explanation, wherein：
Fig. 1 is a kind of construction of embodiment of the compound Retaining wall method of the prefabricated pile for pattern foundation pit supporting structure of the present invention
Flow chart；
Fig. 2 is the barrier wall structure top view of the one of which embodiment of the present invention；
Fig. 3 is the underground space structure schematic diagram of one of which embodiment of the present invention；
Fig. 4 is the underground space structure schematic diagram of another embodiment of the present invention；
Fig. 5 is the structural representation of the drum stake of one of which embodiment of the present invention；
Fig. 6 is the barrier wall structure top view of another embodiment of the present invention；
Fig. 7 is the structural representation of the male-female coupling part of one of which embodiment of the present invention；
Fig. 8 is the structural representation of the male-female coupling part of another embodiment of the present invention；
Fig. 9 is the structural representation of the drum stake of another embodiment of the present invention；
Figure 10 is the structural representation of the drum stake of another embodiment of the present invention；
Figure 11 is the barrier wall structure top view of another embodiment of the present invention.
Specific embodiment
Embodiment 1
As shown in figure 1, a kind of compound Retaining wall method of prefabricated pile for pattern foundation pit supporting structure, wherein, former soil body surface is arrived
The projected depth of target location is more than the length of the prefabricated pile, and the construction method is comprised the following steps successively：A. from described
Former soil body surface to predetermined pile body construction original position carries out advance slope construction according to the water content and packing of the soil body；
B. some prefabricated piles are inserted into the soil body up to the target location from pile body construction original position, and described some
Prefabricated pile circumferentially forms the barrier wall structure for carrying out supporting to the foundation ditch；Wherein, the slope construction is formed
It is domatic outward-dipping from institute's foundation ditch and prevent the soil body from caving in.The target location can be less than the bottom of the foundation ditch,
And below piping layer.The target location is that prefabricated pile inserts the position eventually arrived at after the soil body, and the position can be low
In the bottom of the foundation ditch, and below piping layer.
As one kind preferred embodiment, the compound Retaining wall side of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, the domatic slope angle formed with horizontal plane is less than or equal to the critical angle for preventing the soil body landslide；And work as
The pile body construct original position to the distance of the target location be the length more than or equal to the prefabricated pile when, the stake
Distance at the top of body construction original position to the prefabricated pile is the critical altitude for preventing the soil body landslide.
As another preferred embodiment, the compound Retaining wall side of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, it is domatic for stepped that slope construction is formed, or for planar tilt shape.
As another preferred embodiment, the compound Retaining wall side of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, the prefabricated pile is drum stake, and the drum stake includes gear soil portion, anchoring section, and keeps off soil portion and institute positioned at described
State the connecting portion for connecting the gear soil portion and the anchoring section between anchoring section；When carrying out the construction of above-mentioned steps b, the gear soil is made
The drum stake is inserted in the soil body towards the foundation ditch in portion.
As another preferred embodiment, the compound Retaining wall side of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, each drum stake also includes being arranged at the male connector of the gear soil portion side longitudinal edge and is arranged at another
The female connector of side longitudinal edge；When carrying out the construction of above-mentioned steps b, by the drum stake by being arranged at the institute for keeping off soil portion
State male connector or the female connector with the mother corresponding to the first gear soil portion of the drum stake of the insertion soil body even
Fitting or the male connector insert the soil body while connection；The some drum stakes are by the male connector and institute
State female connector to connect to form the horizontal docking of the drum stake.
As yet another preferred embodiment, the compound Retaining wall of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, the anchoring section of the drum stake also includes being arranged at the male connector of anchoring section side longitudinal edge
With the female connector for being arranged at opposite side longitudinal edge；When carrying out the construction of above-mentioned steps b, by the drum stake by being arranged at
The male connector or the female connector for stating anchoring section is right with the anchoring section institute of the drum stake for first inserting the soil body
The female connector answered or the male connector insert the soil body while connection.
As yet another preferred embodiment, the compound Retaining wall side of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, the male connector is the prominent rail structure continuously arranged along the whole described longitudinal edge of the drum stake, and described
Female connector is the inserting slot construction continuously arranged along the whole described longitudinal edge of the drum stake；Carry out the construction of above-mentioned steps b
When, by the drum stake by itself described prominent rail structure or the inserting slot construction and the drum stake institute for first inserting the soil body
The soil body is inserted while the corresponding inserting slot construction or the prominent rail structure longitudinal direction grafting.
As yet another preferred embodiment, the compound Retaining wall side of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, after carrying out the construction of above-mentioned steps b, in the public seam crossing even between part and the female connector water preventing ability silk fabric is added
Degree mud, to prevent the soil body in moisture content infiltrate through in the foundation ditch from the seam crossing.
As yet another preferred embodiment, the compound Retaining wall side of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, when carrying out the construction of above-mentioned steps b, the drum stake is inserted in the soil body by the way of pressure of shaking.
As yet another preferred embodiment, the compound Retaining wall side of the prefabricated pile for pattern foundation pit supporting structure of the present embodiment
Method, wherein, by the soil body between the gear soil portion of the drum stake and the anchoring section with pressure of ramming or shake
Mode further beats reality.
Used as yet another preferred form, above-mentioned drum stake is drum steel sheet pile, by three blocks of steel plates respectively as gear
Native portion, anchoring section and connecting portion are constituted.
Embodiment 2
As shown in Fig. 2 the present invention discloses a kind of underground space structure of pattern foundation pit supporting structure again, wherein, including：Foundation ditch a；Gear
Wall construction W, including some prefabricated pile P being used for circumferentially on the inwall of the foundation ditch, for entering to the foundation ditch
Row supporting, as shown in figure 3, former soil body surface S is more than length L of the prefabricated pile P to projected depth H of target position D；It is domatic
Structure G, the slope structure G be from former soil body surface S to predetermined pile body construction original position A at containing according to the soil body
In advance slope constructs what is formed before the prefabricated pile is inserted for the water yield and packing, and from institute, foundation ditch is outward-dipping, and prevents
The slope structure of the soil body landslide.The target location is that prefabricated pile inserts the position eventually arrived at after the soil body, and the position can
Think the bottom less than the foundation ditch, and below pervious bed and piping layer.
As one kind preferred embodiment, the underground space structure of the pattern foundation pit supporting structure of the present embodiment, described domatic and water
The slope angle that plane is formed is less than or equal to the critical angle for preventing the soil body landslide；And when pile body construction original position
Distance to the target location is when being more than the length of the prefabricated pile as shown in Figure 3 or is equal to as shown in Figure 4 described prefabricated
During the length of stake, at the top of pile body construction original position A to the prefabricated pile is to prevent facing for the soil body landslide apart from h
Boundary's height.
Used as another preferred embodiment, the underground space structure of the pattern foundation pit supporting structure of the present embodiment, the slope is applied
It is domatic for stepped (not shown herein) that work is formed, or for planar tilt shape.
As another preferred embodiment, the underground space structure of the pattern foundation pit supporting structure of the present embodiment, as shown in figure 5,
The prefabricated pile is drum stake, and the drum stake P includes gear soil portion 1, anchoring section 2, and keeps off soil portion 1 and the anchor positioned at described
Gu connect the connecting portion 3 of the gear soil portion 1 and the anchoring section 2 between portion 2；The drum stake P inserts described after the soil body
Soil portion 1 is kept off towards the foundation ditch W, i.e. by the soil portion 1 that keeps off towards the foundation ditch when drum stake P is inserted into the soil body
W。
As another preferred embodiment, as shown in fig. 6, the underground space structure of the pattern foundation pit supporting structure of the present embodiment,
Each drum stake P also includes being arranged at the male connector 5 of the side longitudinal edge of gear soil portion 1 and is arranged at opposite side longitudinal direction
The female connector 4 at edge；The some drum stake P are inserted after the soil body by being arranged at the public affairs for keeping off soil portion 1
Connector 5 or the female connector 4 and the described female connection 4 or described corresponding to the gear soil portion 1 of adjacent drum stake P
Male connector 5 connects, to form the horizontal docking of the drum stake P；Wherein, the adjacent drum stake is the drum first inserted
Stake P.As shown in fig. 7, the male connector can be O-shaped bulge-structure, the female connector can be corresponding c-type depression knot
Structure；As shown in figure 8, the male connector can be rectangular preiection structure, the female connector is corresponding rectangular depression structure.
As yet another preferred embodiment, the underground space structure of the pattern foundation pit supporting structure of the present embodiment, such as the institutes of Fig. 9 and 10
Show, the anchoring section of the drum stake also includes being arranged at the male connector of anchoring section side longitudinal edge and is arranged at
The female connector of opposite side longitudinal edge；Wherein, the male connector and the female connector and the gear of the anchoring section
The male connector and the female connector in native portion is arranged at homonymy, it is also possible to be arranged at heteropleural；Drum stake is inserted
Enter after the soil body by the male connector or the female connector that are arranged at the anchoring section and adjacent drum stake
The female connector or male connector connection corresponding to the anchoring section, so as to form barricade knot as shown in figure 11
Structure.
As yet another preferred embodiment, the underground space structure of the pattern foundation pit supporting structure of the present embodiment, the public connection
Part is the prominent rail structure continuously arranged along the whole described longitudinal edge of the drum stake, and the female connector is along the work
The inserting slot construction that the whole described longitudinal edge of type stake is continuously arranged；The drum stake is inserted after the soil body by the institute of itself
Prominent rail structure or the inserting slot construction are stated with the inserting slot construction corresponding to adjacent drum stake or the prominent rail structure longitudinal direction
Grafting.
As yet another preferred embodiment, the underground space structure of the pattern foundation pit supporting structure of the present embodiment, connect in the public affairs
Seam crossing between part and the female connector is additionally provided with water preventing ability silk fabric degree mud layer, to prevent the soil body in moisture content from described
Seam crossing is infiltrated through in the foundation ditch.
As yet another preferred embodiment, the underground space structure of the pattern foundation pit supporting structure of the present embodiment, positioned at the work
The soil body between the gear soil portion of type stake and the anchoring section is the packing compact earth higher compared with the periphery soil body.
Used as yet another preferred form, above-mentioned drum stake is drum steel sheet pile, by three blocks of steel plates respectively as gear
Native portion, anchoring section and connecting portion are constituted.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (11)
1. a kind of prefabricated pile for pattern foundation pit supporting structure is combined Retaining wall method, it is characterised in that former soil body surface is to target position
The projected depth put is more than the length of the prefabricated pile, and the construction method is comprised the following steps successively：
A. from the former soil body surface to predetermined pile body construction original position according to the water content of the soil body of the soil body and closely knit
Degree carries out advance slope construction；
B. some prefabricated piles are inserted into the soil body up to the target location from pile body construction original position, and if described
Dry root prefabricated pile circumferentially forms the barrier wall structure for carrying out supporting to the foundation ditch；
Wherein, formed domatic outward-dipping from institute's foundation ditch of slope construction and prevent the soil body from caving in.
2. the prefabricated pile for pattern foundation pit supporting structure according to claim 1 is combined Retaining wall method, it is characterised in that
The domatic slope angle formed with horizontal plane is less than or equal to the critical angle for preventing the soil body landslide；And when described
Pile body construct original position to the distance of the target location be the length more than or equal to the prefabricated pile when, the pile body is applied
Distance at the top of work original position to the prefabricated pile is the critical altitude for preventing the soil body landslide.
3. the prefabricated pile for pattern foundation pit supporting structure according to claim 2 is combined Retaining wall method, it is characterised in that described
It is domatic for stepped that slope construction is formed, or for planar tilt shape.
4., according to the compound Retaining wall method of the arbitrary described prefabricated pile for pattern foundation pit supporting structure of claim 1-3, its feature exists
In the prefabricated pile is drum stake, and the drum stake includes gear soil portion, anchoring section, and keeps off soil portion and the anchor positioned at described
Gu connect the connecting portion of the gear soil portion and the anchoring section between portion；
When carrying out the construction of above-mentioned steps b, the gear soil portion is set the drum stake to be inserted in the soil body towards the foundation ditch.
5. the prefabricated pile for pattern foundation pit supporting structure according to claim 4 is combined Retaining wall method, it is characterised in that each institute
Stating drum stake also includes being arranged at the male connector of the gear soil portion side longitudinal edge and is arranged at opposite side longitudinal edge
Female connector；
When carrying out the construction of above-mentioned steps b, by the drum stake by being arranged at the male connector or described for keeping off soil portion
Female connector is connected with the female connector or the public affairs corresponding to the gear soil portion of the drum stake for first inserting the soil body
Part inserts the soil body while connection；
The some drum stakes are connected to form the horizontal of the drum stake by the male connector and the female connector
Docking.
6. the prefabricated pile for pattern foundation pit supporting structure according to claim 5 is combined Retaining wall method, it is characterised in that described
The anchoring section of drum stake also includes being arranged at the male connector of anchoring section side longitudinal edge and is arranged at opposite side
The female connector of longitudinal edge；
When carrying out above-mentioned steps b and constructing, by the drum stake by being arranged at the male connector or described of the anchoring section
Female connector is connected with the female connector or the public affairs corresponding to the anchoring section of the drum stake for first inserting the soil body
Part inserts the soil body while connection.
7. the compound Retaining wall method of the prefabricated pile for pattern foundation pit supporting structure according to claim 5 or 6, it is characterised in that
The male connector is the prominent rail structure continuously arranged along the whole described longitudinal edge of the drum stake, and the female connector
It is the inserting slot construction continuously arranged along the whole described longitudinal edge of the drum stake；
When carrying out the construction of above-mentioned steps b, the described prominent rail structure by itself or the inserting slot construction and elder generation by the drum stake
Insertion is described while inserting the inserting slot construction or the prominent rail structure longitudinal direction grafting corresponding to the drum stake of the soil body
The soil body.
8. the prefabricated pile for pattern foundation pit supporting structure according to claim 7 is combined Retaining wall method, it is characterised in that
After carrying out the construction of above-mentioned steps b, in the public seam crossing even between part and the female connector water preventing ability silk fabric degree mud is added
Slurry, to prevent the soil body in moisture content infiltrate through in the foundation ditch from the seam crossing.
9. the prefabricated pile for pattern foundation pit supporting structure according to claim 8 is combined Retaining wall method, it is characterised in that carry out
When above-mentioned steps b are constructed, the drum stake is inserted in the soil body by the way of pressure of shaking.
10. the prefabricated pile for pattern foundation pit supporting structure according to claim 9 is combined Retaining wall method, it is characterised in that will
The soil body between the gear soil portion of the drum stake and the anchoring section is further in the way of pressure of ramming or shake
Beat real.
11. a kind of underground space structures of pattern foundation pit supporting structure, it is characterised in that include：
Foundation ditch,
Barrier wall structure, including some prefabricated piles being used for circumferentially on the inwall of the foundation ditch, for the base
Hole carries out supporting, wherein, the projected depth of former soil body surface to target location is more than the length of the prefabricated pile；
Slope structure, the slope structure is that original position is constructed from the former soil body surface to predetermined pile body according to the soil body
Water content and packing in advance slope constructs what is formed before the prefabricated pile is inserted, from institute, foundation ditch is outward-dipping, and
Prevent the slope structure of the soil body landslide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610881674.6A CN106638613A (en) | 2016-10-09 | 2016-10-09 | Precast pile composite retaining wall construction method based on foundation pit supporting and underground space structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610881674.6A CN106638613A (en) | 2016-10-09 | 2016-10-09 | Precast pile composite retaining wall construction method based on foundation pit supporting and underground space structure |
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| CN106638613A true CN106638613A (en) | 2017-05-10 |
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| CN201610881674.6A Pending CN106638613A (en) | 2016-10-09 | 2016-10-09 | Precast pile composite retaining wall construction method based on foundation pit supporting and underground space structure |
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| CN102926328A (en) * | 2012-11-22 | 2013-02-13 | 江苏省交通工程集团有限公司 | Bridge waterside foundation pit excavation and support method and support wall structure |
| CN105887804A (en) * | 2016-05-26 | 2016-08-24 | 福建工程学院 | High-strength prestressed concrete channel plate pile |
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| CN201137148Y (en) * | 2007-12-25 | 2008-10-22 | 杭州南方土木工程咨询有限公司 | Double rows bamboo pile composite soil nail defending system |
| KR20100071951A (en) * | 2010-05-20 | 2010-06-29 | (주)핸스 | Construction structure using asymmetric h-sheet pile |
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