CN209538187U - Deep basal pit interlocking pile bore forming structure - Google Patents
Deep basal pit interlocking pile bore forming structure Download PDFInfo
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- CN209538187U CN209538187U CN201822053942.2U CN201822053942U CN209538187U CN 209538187 U CN209538187 U CN 209538187U CN 201822053942 U CN201822053942 U CN 201822053942U CN 209538187 U CN209538187 U CN 209538187U
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Abstract
The utility model relates to the technical fields of interlocking pile constructing structure, disclose deep basal pit interlocking pile bore forming structure, including multiple slot segment structures continuously arranged, the square steel reinforcement cage and round steel reinforcement cage of 5 sequentially interlaced arrangements are provided in slot segment structure, the square steel reinforcement cage adjacent with next slot segment structure or round steel reinforcement cage are welded with I-steel in slot segment structure, are banded on I-steel for preventing concrete from flowing to the cystosepiment in adjacent slot segment structure；In this way, 5 steel reinforcement cages pouring construction together, each interlocking pile is namely avoided individually to pour, avoid the generation that steel reinforcement cage is damaged when full steel reinforcement cage interlocking pile occlusion cutting, it ensure that occlusion quality of pile, the disposable pile of five piles, substantially reduces occlusion cutting times, avoids interlocking pile cutting and the probability that stake bottom position is easy jag leak generation occurs.
Description
Technical field
The utility model relates to the technical fields of interlocking pile constructing structure, especially deep basal pit interlocking pile bore forming knot
Structure.
Background technique
In deep footing groove enclosing structure, Benoto occlusive piles compared to common support pile there is reliable in quality, stratum to adapt to
Property the advantages such as strong, construction environmental protection, pile work efficiency height, near subway, pipeline dense distribution area, shallow foundation build (structure) and the complexity such as build
It is widely used in deep-foundation pit engineering under the conditions of surrounding enviroment.
The constructing structure of interlocking pile is mostly that each interlocking pile is individually constructed at present, and this constructing structure is be easy to cause mutually
The steel reinforcement cage of the stake of occlusion is cut off, and seriously affects pile foundation quality, and construction efficiency is low.
In the prior art, lack that a kind of construction efficiency is high, high-quality deep basal pit interlocking pile bore forming structure.
Utility model content
The purpose of this utility model is to provide deep basal pit interlocking pile bore forming structures, it is intended to which solution lacks in the prior art
The problem of a kind of weary construction efficiency is high, high-quality deep basal pit interlocking pile bore forming structure.
The utility model is realized in this way deep basal pit interlocking pile bore forming structure, including multiple slots continuously arranged
Segment structure is provided with the square steel reinforcement cage and round steel reinforcement cage of 5 sequentially interlaced arrangements, the slot section knot in the slot segment structure
The square steel reinforcement cage adjacent with next slot segment structure or round steel reinforcement cage are welded with I-steel in structure, are banded with and are used on I-steel
Prevent concrete from flowing to the cystosepiment in adjacent slot segment structure.
Further, the starting steel reinforcement cage of first slot segment structure is square steel reinforcement cage.
Further, the upper and lower part of the steel reinforcement cage for being welded with I-steel is separately provided for fixing the work
The reinforcing bar crotch of word steel, the reinforcing bar crotch are welded and fixed with steel reinforcement cage and I-steel respectively.
Further, wire hole is provided at the web of the I-steel, the wire hole is supplied for binding cystosepiment
Iron wire passes through.
Further, the foam plate surface abuts the bamboo pole being fixed with for preventing the cystosepiment to be subjected to displacement.
Further, the slot segment structure is to excavate to be formed by chute forming machine.
Compared with prior art, deep basal pit interlocking pile bore forming structure provided by the utility model, it is multiple by being arranged
The slot segment structure continuously arranged；The square steel reinforcement cage and round steel reinforcement cage of 5 sequentially interlaced arrangements, slot are provided in slot segment structure
The square steel reinforcement cage adjacent with next slot segment structure or round steel reinforcement cage are welded with I-steel in segment structure, are banded on I-steel
For preventing concrete from flowing to the cystosepiment in adjacent slot segment structure；In this way, 5 steel reinforcement cages pouring construction together, that is, keep away
Exempt from each interlocking pile individually to pour, avoids the generation for damaging steel reinforcement cage when full steel reinforcement cage interlocking pile occlusion cutting, ensure that and sting
Quality of pile is closed, the disposable pile of five piles substantially reduces occlusion cutting times, avoids interlocking pile cutting and stake bottom position occurs
It is easy the probability that jag leak occurs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of deep basal pit interlocking pile bore forming structure provided by the embodiment of the utility model；
Fig. 2 is foundation pit interlocking pile supporting sectional view；
Fig. 3 is a sequence stake square reinforcing bar drawing；
Fig. 4 is the round steel reinforcement cage drawing of two sequence stakes；
Fig. 5 is interlocking pile horizontal layout and arrangement of reinforcement；
Fig. 6 is special-shaped design drawing after sequence stake reinforcing bar change；
Fig. 7 is chute forming machine " two grab " grooving schematic diagram；
Fig. 8 is I-steel and steel reinforcement cage and cystosepiment connection schematic diagram；
Fig. 9 is to first open width steel reinforcement cage decentralization sequential schematic；
Figure 10 is closure width steel reinforcement cage decentralization sequential schematic.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment；In retouching for the utility model
In stating, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore position pass is described in attached drawing
The term of system only for illustration, should not be understood as the limitation to this patent, for those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term as the case may be.
The realization of the utility model is described in detail below in conjunction with specific embodiment.
Referring to Fig.1 shown in -10, preferred embodiment is provided for the utility model.
Deep basal pit interlocking pile bore forming structure is arranged in slot segment structure 1 including multiple slot segment structures 1 continuously arranged
There are a square steel reinforcement cage 2 and round steel reinforcement cage 3 of 5 sequentially interlaced arrangements, it is adjacent with next slot segment structure 1 in slot segment structure 1
Square steel reinforcement cage 2 or round steel reinforcement cage are welded with I-steel 4, are banded on I-steel 4 for preventing concrete from flowing to adjacent slot
Cystosepiment 5 in segment structure 1.
The deep basal pit interlocking pile bore forming structure of above-mentioned offer, by the way that multiple slot segment structures 1 continuously arranged are arranged；Slot
Be provided with the square steel reinforcement cage 2 and round steel reinforcement cage 3 of 5 sequentially interlaced arrangements in segment structure 1, in slot segment structure 1 with next slot
The adjacent square steel reinforcement cage 2 of segment structure 1 or round steel reinforcement cage are welded with I-steel 4, are banded on I-steel 4 for preventing coagulation
Cystosepiment 5 of the soil flow into adjacent slot segment structure 1；In this way, 5 steel reinforcement cages pouring construction together, that is, avoid each occlusion
Stake individually pours, the generation of damage steel reinforcement cage when avoiding the occlusion cutting of full steel reinforcement cage interlocking pile, ensure that occlusion quality of pile, and five
The disposable pile of pile, substantially reduces occlusion cutting times, avoids interlocking pile cutting and the easy jag leakage in stake bottom position occurs
The probability that water occurs.
In the present embodiment, the starting steel reinforcement cage of first slot segment structure 1 is square steel reinforcement cage 2；In this way, the 5th of the slot section the
A steel reinforcement cage is also square steel reinforcement cage 2, and it is more secured that square steel reinforcement cage 2 and I-steel 4 weld relatively round steel bar cage 3, because just
The side of steel bar cage 2 can just be embedded in the invagination face of cooperation I-steel 4.
Specifically, the upper and lower part for being welded with the steel reinforcement cage of I-steel 4 is separately provided for the steel of fixed I-steel 4
Muscle crotch 6, reinforcing bar crotch 6 are welded and fixed with steel reinforcement cage and I-steel 4 respectively.
Specifically, wire hole is provided at the web of I-steel 4, wire hole for binding the iron wire of cystosepiment 5 for passing through.
Furthermore 5 surface of cystosepiment abuts the bamboo pole 7 being fixed with for preventing cystosepiment 5 to be subjected to displacement.
In the present embodiment, slot segment structure 1 is to excavate to be formed by chute forming machine.
Below by taking No. 13 line Bay in Shenzhen port stations of Shenzhen Metro step on open cut section project deeply as an example, as the utility model
The utility model is described in detail in specific embodiment:
No. 13 line Bay in Shenzhen port stations of Shenzhen Metro are stepped on deeply in the project of open cut section, and Foundation Pit Support Design uses diameter
Complete+five road concrete of the meat or fish casing bitten pile support of 1200@900, long interlocking pile stake is 32.11m, and pattern foundation pit supporting structure sectional view is shown in that Fig. 2 shows.
Interlocking pile is designed as a sequence stake, two sequence stakes configure pile body steel reinforcement cage, and a sequence stake is square steel reinforcement cage 2 (showing see Fig. 3), two sequence stakes
For round steel reinforcement cage 3 (showing see Fig. 4), full meat or fish interlocking pile horizontal layout is shown in that Fig. 5 shows.
This project Benoto occlusive piles design thickness of protection tier 70mm, and adjacent studs are engaged 200mm, and interlocking pile pile is permitted
Perhaps deviation is longitudinal direction ± 20mm, laterally 0~+50mm, verticality 5 ‰；Design requirement is first constructed two sequence stakes, and initial set is being reached
Two sequence stakes are completed in the one sequence stake of brother's interlocking secant again afterwards.It in practice of construction, is banketed by top rubble, mud is influenced, in addition
Positioning is influenced at factors such as hole operations, generates certain perpendicularity deviation, and bis- sequence stake of Chang Fasheng occlusion cuts off a sequence stake when constructing
The reinforcing bar of steel reinforcement cage.In response to this problem, by with design, management discuss, propose a sequence stake square steel reinforcement cage 2 is changed to it is different
Steel bar cage (shows) i.e. that steel reinforcement cage side occlusion cutting gluten is arc, but still without solving asking for cutting steel reinforcement cage see Fig. 6
Topic.In addition, since this project is in reclaimation area, rich groundwater and water level is excessively high causes to rush in full-rotating drill work progress
It grabs cone and grabs native difficulty.
In order to solve the problems, such as that two sequence stakes occlusion drilling cuts off adjacent pile cages, by field test, summary, optimization,
A kind of new construction method of full meat or fish interlocking pile hydraulic grab five combinations pile is proposed, that is, changes former design and first constructs two
One sequence stake of root, the sequence of construction for being engaged two sequence stakes of construction between a sequence stake again, it is disposable using diaphram wall grab bucket framing
The pore-forming of five built piles is completed, the steel reinforcement cage of successively five pile of tripping in is then distinguished, after the completion of secondary pile hole cleaning under priming petock
Concrete pile.
Specific construction process flow is as follows:
One, construction of guide wall
1, it since this project interlocking pile pore-forming uses chute forming machine grooving, leads wall and is connected with being changed to by former guide wall of occlusive pile
Wall is led in wall construction.
2, wall process flow is led are as follows: smooth location → measurement position → grooving and processing spoir → assembling reinforcement → Zhi Li are led
Wall form → casting lead wall concrete and conserve → form removal and stull is set.
3, the axis for leading wall outer on the basis of intrinsic need to put 10cm, to guarantee that chute forming machine smoothly transfers grab bucket box cut
Section, it is 4cm-6cm bigger than design size to lead metope dead size within the walls.It leads wall degree control and is directly related to grooving quality, error
No more than 5%.
Two, hydraulic grab grooving takes soil
1, mud production, deposit, circulation, separation
This engineering slurry uses the fresh mud of situ configuration.It, can during grooving according to the soil property situation at scene
Form part mud.Mud can leave a part of premium mud after sedimentation basin precipitates during clear slot.Underwater coagulation
After soil pours, after some mud of concrete replacement is by mechanical treatment and gravity precipitating, there can be part to conform to
The mud indwelling asked.
2, chute forming machine grooving
(1) 5 interlocking piles are divided into a slot section by this project, and slot segment length (width) is 5.2m, using " two grab " grooving (see
Fig. 7 shows), both ends are successively excavated, excavation width 2.8m is often grabbed, make two sides uniform force of grabbing bucket, it is ensured that grooving verticality.Grabbing soil
In the process, by the position of hydraulic grab guide rod adjustment grab bucket, alignment leads wall center and grabs digging.
(2) when chute forming machine is cut the earth, the cable wire for suspending equipment in midair needs perpendicular tensioning state, guarantees grooving vertical precision；Together
When the grooving verticality situation that is shown by the measuring for verticality instrument on chute forming machine, the verticality of adjustment grab bucket in time accomplishes
With digging with entangling, it is ensured that vertical precision is within 5/1000.
(3) when grooving, special messenger is sent to be responsible for broadcasting for mud, depending on mud liquid level altitudes in slot, mud in supplemental tank at any time
Slurry, it is ensured that mud liquid level is higher by level of ground water 0.5m or more, while can not prevent mud supply not lower than wall top face 0.3m is led
The situation of foot occurs.
(4) meet whole hole after interlocking pile design stake bottom absolute altitude at groove depth.
Three, clear slot
1, after the completion of grooving, directly the remaining sediment of bottom hole is caught outside hole using grab bucket, borehole cleaning is quick and effect is good.
2, check that mud indices, slot bottom, less than 1.15, are contained with the mud balance at 0.2~1m after clear slot for the first time
Sand coarse aggregate ratio is not more than 5%, and 20~28s of viscosity, the heavy quarrel thickness of slot bottom is not more than 100mm.
Four, interlocking pile fabrication of reinforcing cage
1, the production of steel reinforcement cage is made by design reinforcement figure.
2, according to the five of division interlocking piles be a slot section, joint is the square cage of a sequence stake, by I-steel 4 with
Square cage is welded, and weld seam is full.
3, since this project interlocking pile design hole depth is 32m or so, joint I-steel 4 is filled using foam, prevents from mixing
Solidifying soil streams.It is welded respectively with I-steel 4 and steel reinforcement cage at two above and below steel reinforcement cage every 2m setting twice reinforcing bar crotch 6
It connects, and has bound cystosepiment 5, foam must be bound securely, wire hole be reserved at the web of I-steel 4, and compressed with bamboo pole 7
Foam surface, every a distance be arranged one of reinforcing bar fixed foam plate 5 and with 4 firm welding of I-steel, prevent because of buoyancy mistake
Greatly, iron wire breaks foam and causes falling off for foam.I-steel 4 and a sequence pile cages and 5 connection schematic diagram of cystosepiment such as Fig. 8
Show.
(2) occlusion pile cages are hung
After the completion of fabrication of reinforcing cage, stake holes, hung using 130t crawler crane (master hangs) and 50t truck crane (pair is hung).
After reinforcement cage hoisting carries away ground, main crane is promoted, and secondary crane cooperates main crane that steel reinforcement cage is vertical, complete to steel reinforcement cage
After upright, the secondary wirerope hung is laid down, independent handling steel reinforcement cage is hung to the slot section excavated by master.When lifting, steel reinforcement cage
It is lifted using 8 points, 4 suspension centres are respectively set in main suspension centre and secondary suspension centre, by leading after reinforcement cage hoisting is vertical or in transportational process
Hang the lifting of 4 suspension centres, when reinforcement cage hoisting, suspension centre welding should securely, and steel reinforcement cage there will be enough rigidity.Due to first opening width and closing
The steel reinforcement cage for closing width has differences, and five steel reinforcement cages successively lift by crane decentralization sequence and see that Fig. 9, Figure 10 show.
Five, concreting
1, perfusion conduit is placed
Concreting uses concreting in water, and conduit selects diameter 200mm steel pipe, using round screw thread quick coupling,
Ensure that screw-socket is good at pipe joint, it is easy to disassemble；It is required securely when connection, and sets elastic tape, to prevent joint spillage.
Horizontally disposed distance is not more than 3m between conduit, is not more than 1.5m away from slot section end.When site operation, according to breadth, we use 2
Root conduit carries out concrete placings.It first opens width and conduit is put into large carrying food-basket, be closed width for the conduit side of being put into cage.
2, concrete perfusion pile
To guarantee to carry out the pipe laying depth that initially perfusion reaches 0.3~0.5m, water proof is placed in conduit before starting perfusion
Ball, and water proof bolt is arranged in hopper base, when concrete is piled in funnel, opens water proof bolt, it will be in conduit by concrete self weight and water proof ball
Mud empties, while continuous placing concrete, to reach quick back cover.When pouring, two conduit blankings simultaneously, and guarantee at conduit
Concrete surface height difference is not more than 0.3m.In casting process, conduit should 2~6m in Transducers Embedded in Concrete always.Concreting is answered
It being carried out continuously, the concrete surface rate of climb is not less than 2m/h, before longest allows interval time 30min, each conduit to remove promotion,
Concrete face height is measured using lining rope, it is ensured that conduit is not less than 2m in the minimum depth of concrete.After concreting is complete, dismounting is led
Pipe movement is fast, and the time is generally no more than 15min.Prevent bolt, rubber pad and tool etc. from falling into hole.The pipe removed
Section will clean up immediately, stack neat.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. deep basal pit interlocking pile bore forming structure, which is characterized in that including multiple slot segment structures continuously arranged, the slot section
Be provided with the square steel reinforcement cage and round steel reinforcement cage of 5 sequentially interlaced arrangements in structure, in the slot segment structure with next slot section
The adjacent square steel reinforcement cage of structure or round steel reinforcement cage are welded with I-steel, are banded on I-steel for preventing concrete from flowing to
Cystosepiment in adjacent slot segment structure.
2. deep basal pit interlocking pile bore forming structure as described in claim 1, which is characterized in that first slot segment structure
Starting steel reinforcement cage be square steel reinforcement cage.
3. deep basal pit interlocking pile bore forming structure as claimed in claim 2, which is characterized in that the I-steel that is welded with
The upper and lower part of steel reinforcement cage is separately provided for fixing the reinforcing bar crotch of the I-steel, the reinforcing bar crotch respectively with steel
Muscle cage and I-steel are welded and fixed.
4. deep basal pit interlocking pile bore forming structure as claimed in claim 3, which is characterized in that at the web of the I-steel
It is provided with wire hole, the wire hole for binding the iron wire of cystosepiment for passing through.
5. deep basal pit interlocking pile bore forming structure as claimed in claim 4, which is characterized in that the foam plate surface abuts
It is fixed with the bamboo pole for preventing the cystosepiment to be subjected to displacement.
6. the deep basal pit interlocking pile bore forming structure as described in claim 1-5 any one, which is characterized in that the slot section
Structure is to excavate to be formed by chute forming machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201822053942.2U CN209538187U (en) | 2018-12-07 | 2018-12-07 | Deep basal pit interlocking pile bore forming structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822053942.2U CN209538187U (en) | 2018-12-07 | 2018-12-07 | Deep basal pit interlocking pile bore forming structure |
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| CN209538187U true CN209538187U (en) | 2019-10-25 |
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ID=68264088
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094915A (en) * | 2022-05-25 | 2022-09-23 | 浙江土工岩土科技有限公司 | Grooving construction method for slightly weathered volcanic geological underground continuous wall |
-
2018
- 2018-12-07 CN CN201822053942.2U patent/CN209538187U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094915A (en) * | 2022-05-25 | 2022-09-23 | 浙江土工岩土科技有限公司 | Grooving construction method for slightly weathered volcanic geological underground continuous wall |
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