CN206157748U - Release of stress type stirrup cage sand well foundation pit dewatering device - Google Patents
Release of stress type stirrup cage sand well foundation pit dewatering device Download PDFInfo
- Publication number
- CN206157748U CN206157748U CN201620990949.5U CN201620990949U CN206157748U CN 206157748 U CN206157748 U CN 206157748U CN 201620990949 U CN201620990949 U CN 201620990949U CN 206157748 U CN206157748 U CN 206157748U
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- CN
- China
- Prior art keywords
- hoop cage
- dewatering device
- sand drain
- cage
- wellhole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a release of stress type hoop cage sand well foundation pit dewatering device relates to building foundation engineering construction precipitation field, including wellhole, reinforcing bar or basalt fiber muscle material hoop cage and grit filter material, it is a plurality of vertical deeply in the wellhole of foundation ditch that the foundation ditch top is arranged along the foundation ditch periphery, sets up stable reinforcing bar or the basalt fiber muscle material hoop cage that has certain supporting role of pore wall along the pore wall in the wellhole, and the intussuseption of hoop cage is filled with the grit filter material. The utility model discloses utilize the wellhole periphery power of enclosing in the performance release foundation ditch lateral wall of the compressible deformation of sand well, effectively reduce the soil body because of the lateral expansion power that contains water quantity variation and the produce additional load to supporting construction, construction convenience, saving reinforcing bar when adopting basalt fiber muscle material, the precipitation cost of installation is lower.
Description
Technical field
The utility model is related to architecture Foundation Pit Engineering Dewatering field, particularly pattern foundation pit supporting structure dewatering device.
Background technology
With the continuous development of urban construction, exploitation and the construction of the underground space that is to say trend of the times.And with underground
, inevitably there is influence on groundwater in the increase of structure buried depth.Underground water is not only to underground structure foundation ditch
The construction of shield brings difficulty, and easily causes the increase of supporting construction stress or support system efficacy wanes, so as to cause foundation ditch
The deformation of watch box system is excessive, even results in foundation pit supporting system failure, construction safety is seriously threatened, especially in the side wall soil body
Base pit engineering with dilatancy region.Generally, using tube well dewatering or water-stop curtain, both of which is present to be applied pattern foundation pit supporting structure precipitation
Work cycle length, the shortcoming that ambient influnence is big, difficulty is big, and flexible setting cannot be carried out according to actual demands of engineering, so as to
Effectively save construction cost.
Utility model content
The purpose of this utility model is：A kind of Stress Release type hoop cage sand drain base pit dewatering device is proposed, accelerates side wall
Middle underground water collects, and reduces additional load of the lateral swelling force of the side wall soil body to supporting construction, and construction is more convenient, and cost is more
It is low.
The purpose of this utility model is realized by following technical proposals：
A kind of Stress Release type hoop cage sand drain base pit dewatering device, including wellhole, hoop cage and sandstone filtrate, foundation ditch top edge
Foundation ditch periphery is disposed with wellhole of some vertical depth more than foundation depth, and arrange along hole wall in wellhole stably has support to hole wall
The hoop cage of effect, in hoop cage sandstone filtrate is filled with.
Alternatively, well head is along foundation pit side-wall and vertically arranged away from margin of foundation pit certain distance.
Alternatively, 300～600mm of well head aperture.
Alternatively, well head is deeper than foundation depth not less than 1000mm.
Alternatively, the outlet pipe of immersible pump is provided with wellhole, immersible pump is fixed on hoop cage middle part, and outlet pipe prolongs from shaft bottom
Extend well head.
Alternatively, hoop cage material adopts reinforcing bar or basalt fibre muscle material in sand drain.
Alternatively, the mesh size of reinforcing bar or basalt fibre muscle material hoop cage can make sandstone filtrate pass hoop cage in sand drain
And it is sufficient filling with wellhole.
Alternatively, sandstone filtrate is the sandstone with infiltration ability in sand drain.
Alternatively, the filling density degree of sandstone filtrate can discharge the radial deformation of borehole wall gusset pressure in sand drain.
Alternatively, sand drain mouth is provided with the covering do not closed.
The aforementioned main scheme of the utility model and its each further selection scheme can be with independent assortments to form multiple schemes,
Can adopt for the utility model and claimed scheme；And the utility model,（Each non conflicting is selected）Between selection and
Can also independent assortment and other selections between.Those skilled in the art are after the present invention program is understood according to prior art and public affairs
Know that general knowledge can understand there is multiple combination, be the claimed technical scheme of the utility model, here does not do exhaustion.
The beneficial effects of the utility model：
1）Using insert after the advance pore-forming of rig sandstone filtrate formed can water-pumping/draining the sand drain that catchments；
2）Hole wall interim stabilization is kept using the reinforcing bar or basalt fibre muscle material hoop cage installed after pore-forming；
3）Using the radially compressible deformation of sand drain, the lateral swelling force of the side wall soil body is discharged, reduce it to supporting construction
Additional load；
4）Using the high permeability of sandstone filtrate, gather fissured expansive soils water, slow down the danger that water is weakened to swelled ground performance
Evil；
5）Using the sump along the arrangement of foundation ditch outside, outer harm of the lateral seepage to base pit stability of the foundation ditch that effectively dams；
6）Sump method is formed using rig pore-forming filler, can fast deposition precipitation；
7）Replace prefabricated well casing using reinforcing bar or basalt fibre muscle material hoop cage, save engineering cost；
8）Hole diameter and position can be according to place hole aqueous conditions；It is adjusted flexibly；
9）Stirrup cage sand drain precipitation device does not enrich place and uses better than conventional dewatering device effect in underground water.
Description of the drawings
Fig. 1 is the schematic top plan view of the utility model embodiment；
Fig. 2 is the cross-sectional schematic of the utility model embodiment；
In figure, 1 is wellhole, and 2 is stirrup cage, and 3 is sandstone filtrate, and 4 is immersible pump, and 5 is outlet pipe.
Specific embodiment
The utility model is further described with reference to specific embodiments and the drawings.
With reference to shown in Fig. 1,2, a kind of Stress Release steel bar hoop cage sand drain base pit dewatering device, including wellhole 1, stirrup
Cage 2 and sandstone filtrate 3, and immersible pump 4 and outlet pipe 5, foundation ditch top is disposed with some wellholes 1 along foundation ditch periphery, and wellhole 1 is led to
Often enclose around foundation ditch one, stably there is the reinforcing bar or basalt fibre muscle of certain supporting role in wellhole 1 to hole wall along hole wall setting
Sandstone filtrate 3 is filled with material hoop cage 2, reinforcing bar or basalt fibre muscle material hoop cage 2, sandstone filtrate 3 is with good infiltration
The sandstone of ability, including the rubble and sand of big particle diameter.Reinforcing bar or basalt fibre muscle material hoop cage 2 can make sandstone filtrate 3 in sand drain
Wellhole 1 is passed and is sufficient filling with, sandstone filtrate 3 can produce the compression of release borehole wall side pressure in sand drain.The end of outlet pipe 5 sets
There is immersible pump 4, immersible pump 4 is fixed on reinforcing bar or basalt fibre muscle material hoop cage 2, and outlet pipe 5 extends to well head from shaft bottom, use
So that the ponding in wellhole 1 to be discharged.Well head is provided with the covering do not closed, it is to avoid forms vacuum in well after completely enclosed and affects to take out
Water.
Construction method of the present utility model：
1st, unwrapping wire is wanted to determine dewatering device well location by design；
2nd, the drilling machine of wellhole 1 is in place；
3rd, the pore-forming of wellhole 1 drilling, casing can creep into entirely, and scarfing cinder；
4th, the reinforcing bar or basalt fibre muscle material hoop cage 2 with immersible pump 4 is laid in wellhole 1；
5th, the sandstone filtrate matched somebody with somebody with a deciding grade and level is inserted in wellhole 1, is filled naturally；
6th, shelve examination after certain hour to take out, check precipitation apparatus integrity；
7th, aperture is covered, outlet pipe 5 is caused into delivery port；
8th, operation, maintenance.
Construction point：
1）Rig elder generation pore-forming wellhole, while placing stirrup cage back-up sand stone filtrate small displacement immersible pump must be installed；
2）Immersible pump is preferably laid with reinforcing bar or the effective colligation of basalt fibre muscle material hoop cage and in the lump；
3）Examination should be carried out in hole before filler to take out, guarantees that immersible pump power line is intact during filler；
4）Immersible pump should need batch (-type) to enable according to WIH position；
5）The sand of certain content is mixed in institute's sandstone filtrate, fine grained is reduced and is extracted out；
6）Insert sandstone filtrate in wellhole to fill naturally, it is ensured that it has certain permeable hole and compressible deformation space；
7）Well head should be covered suitably, it is to avoid formed vacuum in well and affected to draw water.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of Stress Release steel bar hoop cage sand drain base pit dewatering device, it is characterised in that：Including wellhole, hoop cage and sandstone filter
Material, foundation ditch top is disposed with some wellholes for being vertically deeper than foundation ditch, wellhole along foundation ditch periphery and arranges stable to hole wall along hole wall
There is the hoop cage of supporting role, in hoop cage sandstone filtrate is filled with.
2. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Well head is along base
Hole side wall is simultaneously vertically arranged away from margin of foundation pit certain distance.
3. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Well head aperture
300～600mm.
4. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Well head is deeper than
Foundation depth is not less than 1000mm.
5. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Set in wellhole
There is the outlet pipe of immersible pump, immersible pump is fixed on hoop cage middle part, and outlet pipe extends to well head from shaft bottom.
6. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Hoop in sand drain
Cage material is using reinforcing bar or basalt fibre muscle material.
7. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Steel in sand drain
The mesh size of muscle or basalt fibre muscle material hoop cage can make sandstone filtrate pass hoop cage and be sufficient filling with wellhole.
8. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Sand in sand drain
Stone filtrate is the sandstone with infiltration ability.
9. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Sand in sand drain
The filling density degree of stone filtrate can discharge the radial deformation of borehole wall gusset pressure.
10. Stress Release steel bar hoop cage sand drain base pit dewatering device as claimed in claim 1, it is characterised in that：Sand drain mouth
It is provided with the covering do not closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620990949.5U CN206157748U (en) | 2016-08-30 | 2016-08-30 | Release of stress type stirrup cage sand well foundation pit dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620990949.5U CN206157748U (en) | 2016-08-30 | 2016-08-30 | Release of stress type stirrup cage sand well foundation pit dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206157748U true CN206157748U (en) | 2017-05-10 |
Family
ID=58648990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620990949.5U Active CN206157748U (en) | 2016-08-30 | 2016-08-30 | Release of stress type stirrup cage sand well foundation pit dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206157748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764415A (en) * | 2020-07-07 | 2020-10-13 | 中建一局集团建设发展有限公司 | Efficient mud-water separation structure for construction site and construction method thereof |
-
2016
- 2016-08-30 CN CN201620990949.5U patent/CN206157748U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764415A (en) * | 2020-07-07 | 2020-10-13 | 中建一局集团建设发展有限公司 | Efficient mud-water separation structure for construction site and construction method thereof |
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