CN106245654B - Deposited reinforced concrete pile exempts from inter-pile soil excavation construction method - Google Patents
Deposited reinforced concrete pile exempts from inter-pile soil excavation construction method Download PDFInfo
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- CN106245654B CN106245654B CN201610717491.0A CN201610717491A CN106245654B CN 106245654 B CN106245654 B CN 106245654B CN 201610717491 A CN201610717491 A CN 201610717491A CN 106245654 B CN106245654 B CN 106245654B
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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
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- 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
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
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Abstract
The invention discloses a kind of deposited reinforced concrete piles to exempt from inter-pile soil excavation construction method, including step：First, excavation of foundation pit and supporting construction：From top to bottom institute's construction foundation pit is excavated, and the split molding foundation pit of digging carries out supporting；2nd, bottom of foundation ditch concrete cushion is constructed；3rd, measure of pile position unwrapping wire：Unwrapping wire is measured respectively to the stake position of all deposited reinforced concrete piles of foundation pit domestic demand construction；4th, deposited reinforced concrete pile is constructed：When constructing to any one deposited reinforced concrete pile, process is as follows：Abolish concrete cushion at stake position, drilling, steel reinforcement cage are hung, the installation of pile crown molding die, filling concrete construction and pile crown molding die are removed.The method of the present invention step is simple, reasonable design and easy construction, using effect are good, by adjusting the working procedure of pile foundation, the inter-pile soil digging process in conventional steel bar concrete bored concrete pile foundation work progress is saved, can effectively shorten the construction period, and save construction cost.
Description
Technical field
The invention belongs to piling Technology fields, exempt from inter-pile soil more particularly, to a kind of deposited reinforced concrete pile and excavate
Construction method.
Background technology
Deposited reinforced concrete pile is a kind of directly pore-forming on the spot on stake position at the scene, then in hole casting concrete or
Place the steel reinforcement cage stake that casting concrete forms again.At present, deposited reinforced concrete pile construction has become most of skyscrapers
The indispensable project under construction of engineering.The conventional construction method of deposited reinforced concrete pile pile foundation, usually opens foundation pit
When digging to stake top 600mm, first carry out pile foundation positioning, pore-forming and concrete perfusion construction, then carry out again secondary excavation inter-pile soil,
Broken pile head concrete and pour raft board concrete cushion construction.Due to being needed during traditional deposited reinforced concrete pile foundation construction
Inter-pile soil is excavated with mechanical equipment, difficulty of construction is big, and the consuming time is long, and used Mechanical Equipment Quantity is more, and needs
A large amount of manual cleaning stake dense part and mechanical equipment are difficult to the position reached, and the labour cost of consuming is very more.Thus, tradition
Deposited reinforced concrete pile construction method also there are process is more, the construction period is long, construction environment pollution is big, pile foundation construction quality
The problems such as control is difficult.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that provide a kind of reinforced concrete
Native bored concrete pile exempts from inter-pile soil excavation construction method, and method and step is simple, reasonable design and easy construction, using effect are good, leads to
The working procedure of adjustment pile foundation is crossed, the inter-pile soil saved in conventional steel bar concrete bored concrete pile foundation work progress excavated
Journey can effectively shorten the construction period, and save construction cost.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of deposited reinforced concrete pile is exempted between stake
Native excavation construction method, which is characterized in that this method includes the following steps：
Step 1: excavation of foundation pit and supporting construction：From top to bottom institute's construction foundation pit is excavated, and split digging is molding
Foundation pit carries out supporting；
Step 2: bottom of foundation ditch concrete cushion is constructed：The bottom of foundation ditch soil body described in step 1 is tamped, and described
Bottom of foundation ditch pours a layer concrete bed course；The concrete cushion is the bed course below raft foundation；
Step 3: measure of pile position unwrapping wire：To the stake position point of all deposited reinforced concrete piles of foundation pit domestic demand construction
Unwrapping wire is not measured；
Step 4: deposited reinforced concrete pile is constructed：To all deposited reinforced concrete piles of foundation pit domestic demand construction
It constructs respectively, the construction method all same of all deposited reinforced concrete piles；
To when deposited reinforced concrete pile is constructed any one described, process is as follows：
Step 401 abolishes concrete cushion at stake position：According to the surveying setting-out obtained in step 3 as a result, to current institute
The concrete cushion at construction reinforced bar cast-in-place concrete pile stake position is abolished, and is obtained current institute's construction reinforced bar concrete and is filled
Note the stake holes aperture of stake；
Step 402, drilling：It is from top to bottom drilled, obtained from stake holes aperture described in step 402 using rotary pile-digging machine
The stake holes of current institute construction reinforced bar cast-in-place concrete pile；
Step 403, steel reinforcement cage are hung：Using hanging device, molding steel reinforcement cage will be bound in advance and is hung in step 402
In the stake holes；
Step 404, the installation of pile crown molding die：It is installed in the bottom of foundation ditch to current institute's construction reinforced bar filling concrete
The pile crown of stake carries out the pile crown molding die of molding construction, and the pile crown molding die is being located at stake holes described in step 402 just
Top；
Stake of the pile crown molding die for cylindrical die and its internal diameter and current institute's construction reinforced bar cast-in-place concrete pile
Diameter is consistent, and the overhead height of the cylindrical die is higher than the overhead height of current institute's construction reinforced bar cast-in-place concrete pile；
Step 405, filling concrete construction：Filling concrete is carried out to current institute's construction reinforced bar cast-in-place concrete pile to apply
Work；
Step 406, pile crown molding die are removed：After institute's concrete perfusion final set in step 405, construction molding is obtained
Deposited reinforced concrete pile；Pile crown molding die described in step 404 is removed again；
Step 401 is repeated several times to step 406 in step 407, until completing the construction of all deposited reinforced concrete piles
Journey.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：Described in step 3 in foundation pit
The structure snd size all same for all deposited reinforced concrete piles that need to be constructed, all deposited reinforced concrete piles in vertically to
It lays and it is laid in same level.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：Foundation pit described in step 1
Bottom level is less than the top design absolute altitude of the deposited reinforced concrete pile, the bottom of the foundation pit to the armored concrete
Distance at the top design absolute altitude of bored concrete pile is H, wherein H=180mm~220mm；
The thickness of concrete cushion described in step 2 is H, and the upper level of the concrete cushion is than the reinforcing bar
Low 80mm~the 120mm of top design absolute altitude of cast-in-place concrete pile.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：Step 2 is by the foundation pit bottom
During portion's soil body compacting, original soil rammed is carried out to the bottom of foundation ditch, and the thickness of the tamped soil body is 80mm~120mm.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：It is right from top to bottom in step 1
Institute's construction foundation pit is carried out in digging process, is synchronized and is carried out supporting to the foundation pit, and concrete cushion described in step 2 has been constructed
Cheng Hou also needs the surrounding sideline along the concrete cushion, multiple catch pits of constructing on the concrete cushion from front to back.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：Concrete is carried out in step 405
During pouring construction, filling concrete construction, grouting pipe bottom described in filling concrete work progress are carried out using grouting pipe
Depth in embedment institute of portion casting concrete is 2m~6m；The slump of institute's concrete perfusion should control 160mm~220mm it
Between.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：Pile crown described in step 404 into
Pattern tool includes the interior mold of steel mold and coaxial package in the steel mold, and the steel mold is equal with the bottom surface of interior mold
Neat and the two height is 550mm~650mm；The cross section of the interior mold is circular ring shape and its internal diameter and institute's construction reinforced bar
The stake diameter of cast-in-place concrete pile is identical, and the interior mold is formed by multiple strip template splicings along the circumferential direction laid, more
A strip template is in vertically to laying；The steel mold includes the cylinder being spliced by two semicircle steel forms
Shape steel form and the cuff for being sleeved on the cylinder-shaped steel template bottom outside, between the top of two semicircle steel forms
It is fastenedly connected by connector, the cylinder-shaped steel template bottom is installed in cuff；The cuff in horizontal layout and
It is made of multiple arc fastening pieces being along the circumferential direction laid in same level, equal edge on each arc fastening piece
Circumferencial direction is provided with multiple fastening bolts from front to back.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：The arc fastening piece is by angle
Steel is bent, and multiple fastening bolts are installed in the horizontal sides of the angle steel.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：The pile crown molding die is also
Including multiple stirrups from top to bottom laid, multiple stirrups are circular ring shape and its structure snd size all same, Duo Gesuo
Stirrup is stated to be installed in interior mold；
Multiple tracks is along the circumferential direction provided on the lateral wall of the semicircle steel form in vertically putting more energy into laying vertically
Plate, the vertical stiffener are the elongate steel plate being weldingly fixed on semicircle steel form.
Above-mentioned deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, it is characterized in that：The connector includes twice
The connection reinforcing bar on the two semicircle steel form top is separately fixed at, connection reinforcing bar described in twice is solid by binding silk binding
It is set to one.
Compared with the prior art, the present invention has the following advantages：
1st, construction method step is simple, reasonable design and construction cost are relatively low.
2nd, the working procedure of conventional rebar foundation of concrete perfusion piles is adjusted, is excavated according to Pile Foundations Design absolute altitude side
Side supporting, until will be at excavation of foundation pit to raft board concrete bed course fusing point bottom absolute altitude；Original soil rammed again pours raft board concrete pad
Then layer carries out pile foundation positioning, abolishes concrete cushion at stake position, pore-forming and poured pile base concrete construction, and using pile crown
The pile foundation concrete (i.e. pile crown) of molding die concrete perfusion bed course above section, easy construction and work progress is easy to control
System.
3rd, used pile crown forming die structure is simple, reasonable design, processing and fabricating are easy and input cost is relatively low, makes
With it is easy to operate, using effect is good, including steel mold and coaxial package the interior mold in steel mold, interior mold is by multiple along circle
The strip template splicing that circumferential direction is laid forms, and steel mold includes the cylinder-shaped steel being spliced by two semicircle steel forms
Template and the cuff for being sleeved on cylinder-shaped steel template bottom outside, cylinder-shaped steel template are carried out easy, quick and firm by cuff
By fixation, energy is easy, is quick mounting on the stake position of deposited reinforced concrete pile, and fixed reliable；Meanwhile cylindric punching block
Plate is spliced by two semicircle steel forms, and interior mold is formed by multiple strip template splicings along the circumferential direction laid,
It is actually dismounted easily, concrete filling can be carried out to being located at the pile crown above raft board concrete bed course in deposited reinforced concrete pile
Note, and can guarantee the quality of construction molding pile crown.
4th, using effect is good and practical value is high, saves between the stake in conventional steel bar concrete bored concrete pile foundation work progress
Native digging process can effectively reduce construction cost, and can effectively shorten the construction period, and exempt to effectively reduce and manually match after digging inter-pile soil
It closes machinery to cut the earth the time, and do not influenced by rainy season, other work projects can be carried out；Simultaneously as raft board concrete bed course
It constructs prior to deposited reinforced concrete pile, the catch pit on raft board concrete bed course can be utilized to collect water, realize waste water cycle profit
With reduction water resource waste, construction environment is clean and tidy, of reduced contamination.In addition, it is perfused using construction molding armored concrete of the present invention
The stake level of stake is true, pile crown concrete compaction and impression quality is good.Compared with traditional pile foundation construction method, the present invention can reduce
Engineering cost saves inter-pile soil digging process, does not need to excavate inter-pile soil when saving manual cleaning and take, while cutting the earth, once open
It digs to concrete cushion absolute altitude, improves working efficiency, shorten the construction period, and can effectively save excavation expense.By above-mentioned interior
To hold it is found that present invention process is simple and convenient to operate and reliable in quality, energy conservation and environmental protection, economic benefit and social benefit are notable, and
Suitable for all steel bar concrete pile construction process.
In conclusion the method for the present invention step is simple, reasonable design and easy construction, using effect are good, by adjusting stake
The working procedure on basis, saves the inter-pile soil digging process in conventional steel bar concrete bored concrete pile foundation work progress, can be effective
Shorten the construction period, and save construction cost.
Below by drawings and examples, technical scheme of the present invention is described in further detail.
Description of the drawings
Fig. 1 is the method flow block diagram of the present invention.
Fig. 1-1 is the construction method flow diagram of deposited reinforced concrete pile of the present invention.
Fig. 2 is the structure diagram of pile crown molding die of the present invention.
Reference sign:
1-interior mold；2-semicircle steel form；3-cuff；
4-fastening bolt；5-vertical stiffener；6-connection reinforcing bar；
7-binding silk.
Specific embodiment
A kind of deposited reinforced concrete pile as shown in Figure 1 exempts from inter-pile soil excavation construction method, includes the following steps：
Step 1: excavation of foundation pit and supporting construction：From top to bottom institute's construction foundation pit is excavated, and split digging is molding
Foundation pit carries out supporting；
Step 2: bottom of foundation ditch concrete cushion is constructed：The bottom of foundation ditch soil body described in step 1 is tamped, and described
Bottom of foundation ditch pours a layer concrete bed course；The concrete cushion is the bed course below raft foundation；
Step 3: measure of pile position unwrapping wire：To the stake position point of all deposited reinforced concrete piles of foundation pit domestic demand construction
Unwrapping wire is not measured；
Step 4: deposited reinforced concrete pile is constructed：To all deposited reinforced concrete piles of foundation pit domestic demand construction
It constructs respectively, the construction method all same of all deposited reinforced concrete piles；
As Figure 1-1, to when deposited reinforced concrete pile is constructed any one described, process is as follows：
Step 401 abolishes concrete cushion at stake position：According to the surveying setting-out obtained in step 3 as a result, to current institute
The concrete cushion at construction reinforced bar cast-in-place concrete pile stake position is abolished, and is obtained current institute's construction reinforced bar concrete and is filled
Note the stake holes aperture of stake；
Step 402, drilling：It is from top to bottom drilled, obtained from stake holes aperture described in step 402 using rotary pile-digging machine
The stake holes of current institute construction reinforced bar cast-in-place concrete pile；
Step 403, steel reinforcement cage are hung：Using hanging device, molding steel reinforcement cage will be bound in advance and is hung in step 402
In the stake holes；
Step 404, the installation of pile crown molding die：It is installed in the bottom of foundation ditch to current institute's construction reinforced bar filling concrete
The pile crown of stake carries out the pile crown molding die of molding construction, and the pile crown molding die is being located at stake holes described in step 402 just
Top；
Stake of the pile crown molding die for cylindrical die and its internal diameter and current institute's construction reinforced bar cast-in-place concrete pile
Diameter is consistent, and the overhead height of the cylindrical die is higher than the overhead height of current institute's construction reinforced bar cast-in-place concrete pile；
Step 405, filling concrete construction：Filling concrete is carried out to current institute's construction reinforced bar cast-in-place concrete pile to apply
Work；
Step 406, pile crown molding die are removed：After institute's concrete perfusion final set in step 405, construction molding is obtained
Deposited reinforced concrete pile；Pile crown molding die described in step 404 is removed again；
Step 401 is repeated several times to step 406 in step 407, until completing the construction of all deposited reinforced concrete piles
Journey.
Wherein, the pile crown of current institute construction reinforced bar cast-in-place concrete pile is current institute's construction reinforced bar concrete in step 404
It is located at the segment described in step 2 above concrete cushion in bored concrete pile.
In the present embodiment, the structure snd size of all deposited reinforced concrete piles of the construction of foundation pit domestic demand described in step 3
All same, all deposited reinforced concrete piles in vertically to lay and its be laid in same level.
During practice of construction, the bottom level of foundation pit described in step 1, which is less than at the top of the deposited reinforced concrete pile, to be set
Absolute altitude is counted, the distance at the bottom to the top design absolute altitude of the deposited reinforced concrete pile of the foundation pit is H, wherein H=
180mm~220mm；
The thickness of concrete cushion described in step 2 is H, and the upper level of the concrete cushion is than the reinforcing bar
Low 80mm~the 120mm of top design absolute altitude of cast-in-place concrete pile.
In the present embodiment, H=100mm.The upper level of concrete cushion described in step 2 is than the reinforced concrete
The low 100mm of top design absolute altitude of native bored concrete pile.Thus, the pile crown of current institute construction reinforced bar cast-in-place concrete pile in step 404
Highly it is 100mm.
During practice of construction, the value size of H can be adjusted accordingly according to specific needs.
During practice of construction, when being excavated in step 1 to institute's construction foundation pit, according to the excavation of foundation pit and branch being pre-designed
Shield scheme carries out excavation construction, and according to Design Requirement Drawing and pile foundation construction scheme, using detection instruments such as spirit level, Sopwith staffs
Conscientiously carry out absolute altitude control work.
In the present embodiment, from top to bottom institute's construction foundation pit is carried out in digging process in step 1, is synchronized to the foundation pit
Carry out supporting；When being excavated in step 1 to institute's construction foundation pit, it is excavated to the top design of the deposited reinforced concrete pile
Below absolute altitude at 200mm, forbid to backbreak or dig less.
During practice of construction, after the completion for the treatment of the excavation of foundation pit, then edge protection is carried out to excavating the foundation pit completed.
When step 2 tamps the bottom of foundation ditch soil body, original soil rammed is carried out, and tamp soil to the bottom of foundation ditch
The thickness of body is 80mm~120mm.In the present embodiment, when step 2 tamps the bottom of foundation ditch soil body, and the tamped soil body
Thickness be 100mm.
When the construction of bottom of foundation ditch concrete cushion is carried out in the present embodiment, in step 2, first carry out 100mm thickness original soil and ram
It is real, then the concrete cushion of one layer of 200mm thickness is poured, concrete cushion top surface absolute altitude is required to compare institute when pouring
State the low 100mm of top design absolute altitude of deposited reinforced concrete pile.
In the present embodiment, after the completion of the construction of concrete cushion described in step 2, four along the concrete cushion are also needed
Perimeter line, multiple catch pits of constructing on the concrete cushion from front to back.
In the present embodiment, the spacing between the two neighboring catch pit is 20m, and the catch pit is cheated for square and it
Size is 500mm × 500mm × 500mm.Multiple catch pits of construction molding are used as rainy season draining.
During practice of construction, the diameter of stake holes aperture described in step 401 is than current institute's construction reinforced bar cast-in-place concrete pile
Big 80mm~the 120mm of stake diameter.
Also, when measure of pile position unwrapping wire is completed in step 3, construction personnel is according to surveying setting-out as a result, with each steel
The pile body centre spot of reinforced concrete bored concrete pile draws circle for the center of circle, that is, releases the stake holes of each deposited reinforced concrete pile
Contour line, the diameter of the stake holes contour line are bigger 80mm~120mm than the design stake diameter of the deposited reinforced concrete pile.
In the present embodiment, the diameter of the stake holes contour line is bigger than the design stake diameter of the deposited reinforced concrete pile
100mm, the diameter of stake holes aperture described in step 401 are bigger 100mm than the stake diameter of current institute's construction reinforced bar cast-in-place concrete pile.
During practice of construction, the diameter of the stake holes contour line can be adjusted accordingly according to specific needs.
In the present embodiment, to the concrete mats at current institute's construction reinforced bar cast-in-place concrete pile stake position in step 401
When layer is abolished, the concrete mats in the stake holes contour line are abolished using tool of abolishing (such as concrete breaker)
Layer, and the concrete dregs abolished are cleaned out, stake position is made clearly to reveal.
Also, when being drilled in step 402, in the rotary pile-digging machine rotary digging drilling pore forming process, quality person should track
It checks, checks and detect the indices such as stake holes diameter, verticality, depth in time, if there is fortuitous event to answer hard stop, wait to ask
It can continue rotary digging after topic processing, and carry out pore-forming record, the miriness dug out directly is transported to specified place with loading machine.
In the present embodiment, as shown in Fig. 2, pile crown molding die described in step 404 includes steel mold and coaxial package exists
The bottom surface flush of interior mold 1 in the steel mold, the steel mold and interior mold 1 and the height of the two be 550mm~
650mm；The cross section of the interior mold 1 is identical with the stake diameter of institute construction reinforced bar cast-in-place concrete pile for circular ring shape and its internal diameter,
The interior mold 1 is formed by multiple strip template splicings along the circumferential direction laid, and multiple strip templates are in perpendicular
Directly to laying；The steel mold includes the cylinder-shaped steel template being spliced by two semicircle steel forms 2 and is sleeved on described
The cuff 3 of cylinder-shaped steel template bottom outside is fastened by connector between the top of two semicircle steel forms 2
Connection, the cylinder-shaped steel template bottom is installed in cuff 3；The cuff 3 is in horizontal layout and it is by multiple circumferentially sides
On the arc fastening piece composition being laid in same level, each arc fastening piece along the circumferential direction from front to back
It is provided with multiple fastening bolts 4.
In the present embodiment, the plate thickness of the semicircle steel form 2 is 5mm.
In the present embodiment, the quantity of arc fastening piece described in the cuff 3 is two.
It in actual use, can be tight to the quantity of arc fastening piece and each arc described in the cuff 3 according to specific needs
The length of cuffs adjusts accordingly respectively with installation position.
In the present embodiment, the arc fastening piece is bent by angle steel.
Also, multiple fastening bolts 4 are installed in the horizontal sides of the angle steel.
In the present embodiment, the vertical edge of multiple arc fastening pieces forms one and is sleeved on the circle in the cuff 3
The ring-shaped clamping sleeve of tubular steel form bottom outside.
In the present embodiment, the strip template is plank and its cross section is arc.
Meanwhile pile crown molding die described in step 404 further includes multiple stirrups from top to bottom laid, multiple steel
Hoop is circular ring shape and its structure snd size all same, and multiple stirrups are installed in interior mold 1.
In the present embodiment, it is in vertically to cloth to be along the circumferential direction provided with multiple tracks on the lateral wall of the semicircle steel form 2
If vertical stiffener 5, the vertical stiffener 5 is the elongate steel plate being weldingly fixed on semicircle steel form 2.
In the present embodiment, the connector includes the company that twice are separately fixed at two semicircle 2 top of steel form
Reinforcing bar 6 is connect, connection reinforcing bar 6 is integrated by binding 7 banding fixed of silk described in twice.The connection reinforcing bar 6 is welded on semicircle
On steel form 2.
In actual use, the connector can also use other types of connection structure, such as connection bolt.
In the present embodiment, the semicircle platform of formation one after two semicircle 2 tops of steel form are bent outwardly, two
A semicircle platform forms a upper support ring, and the upper support ring is in horizontal layout.
When being installed in step 404 to the pile crown molding die, fastening bolt 4 is first passed through to each arc in cuff 3
Shape fastening piece is fixed respectively, and forms cuff 3；It is using hanging device that the cylinder-shaped steel template and interior mold 1 is same again
In step lifting to cuff 3, and the cylinder-shaped steel template bottom is made to be installed in cuff 3, complete the pile crown molding die
Installation process.
In the present embodiment, when being installed to cuff 3, first in the side in the stake holes aperture to respectively fastening spiral shell on cuff 3
The installation site of bolt 4 is determined respectively, then drills through the installation of each fastening bolt 4 on the concrete cushion using impact drill
Then cuff 3 is fixed on the concrete cushion by hole with fastening bolt 4.
In the present embodiment, the fastening bolt 4 is expansion bolt.
Before carrying out filling concrete construction in step 405, the pile crown molding die is checked, is cleared up and school
Just.
When filling concrete construction is carried out during practice of construction, in step 405, concrete filling is carried out using grouting pipe
Note construction, the depth that grouting pipe bottom described in filling concrete work progress is embedded in institute's casting concrete are 2m~6m；
The slump of institute's concrete perfusion should be controlled between 160mm~220mm.
When filling concrete construction is carried out in the present embodiment, in step 405, the beginning quantity of concrete should ensure that the slip casting
More than conduit Transducers Embedded in Concrete 800mm, and the length of embedment of the grouting pipe should be measured by special messenger.
In step 405 after the completion of filling concrete construction, burlap, straw screen or mat etc. need to be covered and carry out moisture-keeping maintaining.In step 406
After the pile crown molding die is removed, burlap, straw screen or mat etc. need to be covered by, which also needing, continues to carry out institute's construction reinforced bar cast-in-place concrete pile
Moisture-keeping maintaining.Also, the pile crown molding die after removing moves to next position and is recycled.
The above is only presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and the equivalent structure that technical spirit makees above example change, and still fall within skill of the present invention
In the protection domain of art scheme.
Claims (9)
1. a kind of deposited reinforced concrete pile exempts from inter-pile soil excavation construction method, which is characterized in that this method includes the following steps：
Step 1: excavation of foundation pit and supporting construction：From top to bottom institute's construction foundation pit is excavated, and the split molding foundation pit of digging
Carry out supporting；
Step 2: bottom of foundation ditch concrete cushion is constructed：The bottom of foundation ditch soil body described in step 1 is tamped, and in the foundation pit
Bottom pours a layer concrete bed course；The concrete cushion is the bed course below raft foundation；
Step 3: measure of pile position unwrapping wire：To the foundation pit domestic demand construction all deposited reinforced concrete piles stake position respectively into
Row surveying setting-out；
Step 4: deposited reinforced concrete pile is constructed：All deposited reinforced concrete piles of foundation pit domestic demand construction are distinguished
It constructs, the construction method all same of all deposited reinforced concrete piles；
To when deposited reinforced concrete pile is constructed any one described, process is as follows：
Step 401 abolishes concrete cushion at stake position：According to the surveying setting-out obtained in step 3 as a result, to currently being constructed
The concrete cushion at deposited reinforced concrete pile stake position is abolished, and obtains current institute's construction reinforced bar cast-in-place concrete pile
Stake holes aperture；
Step 402, drilling：It is from top to bottom drilled, obtained current from stake holes aperture described in step 402 using rotary pile-digging machine
The stake holes of institute's construction reinforced bar cast-in-place concrete pile；
Step 403, steel reinforcement cage are hung：Using hanging device, molding steel reinforcement cage will be bound in advance and is hung described in step 402
In stake holes；
Step 404, the installation of pile crown molding die：It is installed in the bottom of foundation ditch to current institute's construction reinforced bar cast-in-place concrete pile
Pile crown carries out the pile crown molding die of molding construction, and the pile crown molding die is located at the surface of stake holes described in step 402；
The pile crown molding die is cylindrical die and the stake diameter one of its internal diameter and current institute's construction reinforced bar cast-in-place concrete pile
It causes, the overhead height of the cylindrical die is higher than the overhead height of current institute's construction reinforced bar cast-in-place concrete pile；
Step 405, filling concrete construction：Filling concrete construction is carried out to current institute's construction reinforced bar cast-in-place concrete pile；
Step 406, pile crown molding die are removed：After institute's concrete perfusion final set in step 405, the reinforcing bar of construction molding is obtained
Cast-in-place concrete pile；Pile crown molding die described in step 404 is removed again；
Step 401 is repeated several times to step 406 in step 407, until completing the work progress of all deposited reinforced concrete piles；
Pile crown molding die described in step 404 includes steel mold and coaxial package the interior mold (1) in the steel mold, institute
It is 550mm~650mm to state the bottom surface flush of steel mold and interior mold (1) and the height of the two；The horizontal stroke of the interior mold (1)
Section is identical with the stake diameter of institute construction reinforced bar cast-in-place concrete pile for circular ring shape and its internal diameter, and the interior mold (1) is by multiple edges
The strip template splicing that circumferencial direction is laid forms, and multiple strip templates are in vertically to laying；The steel mold
Including the cylinder-shaped steel template being spliced by two semicircle steel forms (2) and it is sleeved on outside the cylinder-shaped steel template bottom
The cuff (3) of side is fastenedly connected between the top of two semicircle steel forms (2), the cylinder by connector
Shape steel form bottom is installed in cuff (3)；The cuff (3) in horizontal layout and its by it is multiple be along the circumferential direction laid in it is same
Arc fastening piece composition on one horizontal plane is each along the circumferential direction provided with multiple from front to back on the arc fastening piece
Fastening bolt (4).
2. deposited reinforced concrete pile described in accordance with the claim 1 exempts from inter-pile soil excavation construction method, it is characterised in that：Step
The structure snd size all same of all deposited reinforced concrete piles of the construction of foundation pit domestic demand described in three, all armored concrete fill
Note stake in vertically to lay and its be laid in same level.
3. exempt from inter-pile soil excavation construction method according to the deposited reinforced concrete pile described in claims 1 or 2, it is characterised in that：
The bottom level of foundation pit described in step 1 is less than the top design absolute altitude of the deposited reinforced concrete pile, the bottom of the foundation pit
Distance at portion to the top design absolute altitude of the deposited reinforced concrete pile is H, wherein H=180mm~220mm；
The thickness of concrete cushion described in step 2 is H, and the upper level of the concrete cushion is than the reinforced concrete
Low 80mm~the 120mm of top design absolute altitude of native bored concrete pile.
4. exempt from inter-pile soil excavation construction method according to the deposited reinforced concrete pile described in claims 1 or 2, it is characterised in that：
When step 2 tamps the bottom of foundation ditch soil body, original soil rammed, and the thickness of the tamped soil body are carried out to the bottom of foundation ditch
For 80mm~120mm.
5. exempt from inter-pile soil excavation construction method according to the deposited reinforced concrete pile described in claims 1 or 2, it is characterised in that：
From top to bottom institute's construction foundation pit is carried out in digging process in step 1, synchronizes and supporting is carried out to the foundation pit, institute in step 2
After the completion of stating concrete cushion construction, the surrounding sideline along the concrete cushion is also needed, from front to back in the concrete mats
It constructs multiple catch pits on layer.
6. exempt from inter-pile soil excavation construction method according to the deposited reinforced concrete pile described in claims 1 or 2, it is characterised in that：
When filling concrete construction is carried out in step 405, filling concrete construction is carried out using grouting pipe, filling concrete was constructed
Depth in the embedment of grouting pipe bottom described in journey institute casting concrete is 2m~6m；The slump of institute's concrete perfusion should be controlled
System is between 160mm~220mm.
7. deposited reinforced concrete pile described in accordance with the claim 1 exempts from inter-pile soil excavation construction method, it is characterised in that：It is described
Arc fastening piece is bent by angle steel, and multiple fastening bolts (4) are installed in the horizontal sides of the angle steel.
8. deposited reinforced concrete pile described in accordance with the claim 1 exempts from inter-pile soil excavation construction method, it is characterised in that：It is described
Pile crown molding die further includes multiple stirrups from top to bottom laid, and multiple stirrups are circular ring shape and its structure snd size
All same, multiple stirrups are installed in interior mold (1)；
It is in vertically to the vertical stiffener of laying that multiple tracks is along the circumferential direction provided on the lateral wall of the semicircle steel form (2)
(5), the vertical stiffener (5) is the elongate steel plate being weldingly fixed on semicircle steel form (2).
9. deposited reinforced concrete pile described in accordance with the claim 1 exempts from inter-pile soil excavation construction method, it is characterised in that：It is described
Connector includes the connection reinforcing bar (6) that twice are separately fixed at two described semicircle steel form (2) top, connection described in twice
Reinforcing bar (6) is integrated by binding silk (7) banding fixed.
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| CN201610717491.0A CN106245654B (en) | 2016-08-24 | 2016-08-24 | Deposited reinforced concrete pile exempts from inter-pile soil excavation construction method |
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| CN201610717491.0A CN106245654B (en) | 2016-08-24 | 2016-08-24 | Deposited reinforced concrete pile exempts from inter-pile soil excavation construction method |
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| CN106245654B true CN106245654B (en) | 2018-07-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110206025A (en) * | 2019-05-18 | 2019-09-06 | 陕西建工第五建设集团有限公司 | Terrace mud off deposited reinforced concrete pile construction method out |
| CN110158605B (en) * | 2019-07-05 | 2020-11-27 | 马鞍山十七冶工程科技有限责任公司 | Foundation pit construction method |
| CN110700227A (en) * | 2019-11-06 | 2020-01-17 | 李秀利 | Construction method of integrated steel bar inserting concrete pile |
| CN113931230A (en) * | 2021-12-02 | 2022-01-14 | 新疆北新路桥集团股份有限公司 | Assembly type channel construction method and assembly type channel |
| CN114277780B (en) * | 2021-12-25 | 2023-04-18 | 深圳市蛇口招商港湾工程有限公司 | Construction method of marine soft soil foundation structure |
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| JPH06136745A (en) * | 1992-04-28 | 1994-05-17 | J D F:Kk | Construction method for hollow widened bottom cast-in-place concrete pile |
| CN103806444A (en) * | 2014-02-14 | 2014-05-21 | 浙江省建工集团有限责任公司 | Soft soil layer rotary excavating pile construction method |
| CN104652420A (en) * | 2013-11-20 | 2015-05-27 | 金国平 | Sinking pipe soil withdrawing and cast-in-place rectangular supporting pile diaphragm wall and construction method thereof |
| CN105002891A (en) * | 2015-07-29 | 2015-10-28 | 北京城建北方建设有限责任公司 | Earth-among-pile excavation-free construction method for cast-in-situ bored piles |
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| JPH06136745A (en) * | 1992-04-28 | 1994-05-17 | J D F:Kk | Construction method for hollow widened bottom cast-in-place concrete pile |
| CN104652420A (en) * | 2013-11-20 | 2015-05-27 | 金国平 | Sinking pipe soil withdrawing and cast-in-place rectangular supporting pile diaphragm wall and construction method thereof |
| CN103806444A (en) * | 2014-02-14 | 2014-05-21 | 浙江省建工集团有限责任公司 | Soft soil layer rotary excavating pile construction method |
| CN105002891A (en) * | 2015-07-29 | 2015-10-28 | 北京城建北方建设有限责任公司 | Earth-among-pile excavation-free construction method for cast-in-situ bored piles |
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