CN110258660A - The manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating - Google Patents
The manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating Download PDFInfo
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- CN110258660A CN110258660A CN201910528697.2A CN201910528697A CN110258660A CN 110258660 A CN110258660 A CN 110258660A CN 201910528697 A CN201910528697 A CN 201910528697A CN 110258660 A CN110258660 A CN 110258660A
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- drainage sump
- basement
- well
- sump
- steel ring
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Classifications
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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
- E02D17/06—Foundation trenches ditches or narrow shafts
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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
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- 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
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- 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
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
-
- 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
- E02D19/22—Lining sumps in trenches or other foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to the manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating, depth step 1: is dug under basement in the well of 50-60CM；Step 2: the bottom casting concrete bed course of well；Step 3: building water-permeable brick on concrete cushion, and water-permeable brick surrounds drainage sump；Step 4: drainage sump periphery backfills coarse sand or disintegrating slagForm pervious bed；Step 5: drainage sump top is provided with discharge opening along its circumferencial direction interval；Step 6: fixedSealing steel ring sleeve,Only Water steel ring sleeveLower end is inserted into drainage sump,Sealing steel ring sleeveExpose outside the bottom plate of basement upper end；Step 7: bottom slab concreting bottom cushion；Step 10: the upward 200-250CM's of bottom plateSealing steel ring sleevePlace is provided with discharge outlet.The present invention can effectively reduce the supporting power of room bottom plate under Groundwater, and economical and effective, construction is simple is quick, can fundamentally solve the problems, such as construction stage basement floating-up.
Description
Technical field
The present invention relates to building field, in particular to the manufacture craft and envelope of the decompression drainage sump of a kind of basement anti-floating
Well technique.
Background technique
With China's expanding economy, Development of China's Urbanization is accelerated, and building trade has obtained rapidly developing, basement and underground
Build also more and more therewith, and various regions water level is different, the buried depth difference of every building, water to the buoyancy of building not yet
Together, the basement Anti-floating design of construction stage does not cause enough attention and corresponding effective solution in addition, at basement
Basement floating-up power can be made excessive when below level of ground water.Therefore in the construction stage, when basement self gravity cannot resist
The buoyancy of room under Groundwater, and the Dewatering by pressure reduction measure that unit in charge of construction takes fail timely and effectively lowering of watertable or
Often there is rising phenomenon in the water buoyancy of basement, unfinished basement structure, and the structure as caused by basement floating-up by
Damage is even more that can be found everywhere, and gently then influences its project progress, heavy then to influence structure safe, in turn results in heavy economic losses.In view of
Loss brought by basement floating-up problem is big, the influence factor of basement floating-up and its how to prevent and treat, reinforces and all need
It solves the problems, such as.
Prior art 1:
Dewatering well quantity is set according to Practical Project overview, dewatering well cutting depth is normally at 10 meters of basement or less, diameter
For 500mm, 300mm water pipe is placed, is persistently discharged other than basement by the water of pump handle dewatering well, when underground water potential drop to ground
Lower room bottom plate is hereinafter, make basement by or by the water buoyancy of very little, can not prevent basement floating-up effectively, work as basement
It after closing, checks and checks through designing unit, meet anti-floating and require to shunt in a well.
The shortcomings that prior art 1:
1, dewatering well, which continues dewatering and drainage, has certain influence to basement water level environment, may cause level of ground water decline around,
Secondly it is lost along with the grains of sand in pump process and causes land subsidence, to be caused brokenly to existing building and town road
It is bad.
2, dewatering well is arranged 10 meters or so below basement, and construction cost is high, and process is many and diverse, and later period shut-in well is at high cost.
3, each dewatering well places a pumping for water pump, and quantity is more, and power consumption is high.
Prior art 2:
The soil on foundation pit periphery is not filled out first, is at same absolute altitude, is equivalent to the water pressure in foundation pit as foundation pit periphery, no
There are lateral pressures to force the water pressure of foundation pit is excessive water level is caused to rise.
The shortcomings that prior art 2:
Process trouble, influences construction working face, Practical Project condition does not allow.
Summary of the invention
It is an object of the invention to overcome above-mentioned the shortcomings of the prior art, and provide a kind of in basement bottom board construction
Decompression drainage sump is reserved in the process, and when level of ground water increases, water is discharged through drainage sump, can effectively reduce room bottom under Groundwater
The supporting power of plate, economical and effective, construction is simple is quick, solves the decompression of the basement anti-floating of construction stage basement floating-up problem
The manufacture craft and shut-in well technique of drainage sump.
The first object of the present invention is achieved in that
A kind of manufacture craft of the decompression drainage sump of basement anti-floating, includes the following steps,
Step 1: depth is dug under basement in the well of 50-60CM；
Step 2: the bottom casting concrete bed course of well；
Step 3: building water-permeable brick on concrete cushion, and water-permeable brick surrounds drainage sump；
Step 4: drainage sump periphery backfills coarse sand or disintegrating slag forms pervious bed；
Step 5: drainage sump top is provided with discharge opening along its circumferencial direction interval；
Step 6: fixed sealing steel ring sleeve, sealing steel ring sleeve lower end are inserted into drainage sump, and basement is exposed in sealing steel ring sleeve upper end
Bottom plate outside；
Step 7: bottom slab concreting bottom cushion；
Step 8: waterproof coiled material layer is laid on bottom cushion；
Step 9: pouring reinforcement concrete layer on waterproof roll layer, reinforced concrete floor are reserved with recessed along sealing steel ring sleeve periphery
Slot.
Step 10: discharge outlet is provided at the sealing steel ring sleeve of the upward 200-250CM of bottom plate.
The present invention in basement bottom board work progress by reserving decompression drainage sump, and when level of ground water increases, water is through letting out
Well discharge, can effectively reduce the supporting power of room bottom plate under Groundwater, and compared with prior art 1 and the prior art 2, this method warp
Effectively, construction is simple is quick, can fundamentally solve the problems, such as construction stage basement floating-up for Ji.
Moreover, drainage sump using the form of construction work set is stayed in advance, reduction is done over again, and shortens the construction period, saves construction cost,
Reserved drainage sump construction technology is simple, and at low cost, effect is good, can effectively mitigate the supporting that cell structure generates under Groundwater
Power guarantees the safety of basement structure.
Further more, each drainage sump configuration drainpipe of the present invention and blind pipe, when level of ground water rising causes basement buoyancy mistake
Height, groundwater pressure are concentrated toward spilling at decompression drainage sump, and the water of spilling is higher by reserved sluicing open height and is then flowed to automatically
Basement sump, after the water level of basement sump reaches drain height preset by liquid level controller, suction pump will
Basement sump is discharged to outside basement sump.
The second object of the present invention is achieved in that
A kind of shut-in well technique of the decompression drainage sump of basement anti-floating, includes the following steps,
Step 1: the water of drainage sump is emptied by discharge outlet；
Step 2: sealing steel ring sleeve is cut off；
Step 3: the primary concreting slightly expanded concrete in drainage sump is shunt in a well；
Step 4: groove is blocked using leak stopping king.
The present invention is checked through designing unit and is checked after basement closing, is met anti-floating and is required to shunt in a well, shut-in well is logical
Crossing above-mentioned steps can be completed shut-in well, and entire shut-in procedures are simple, and slightly expanded concrete is poured in pressure release well, and groove is adopted
It is blocked with leak stopping king, quick shut-in well can be realized, effectively prevent seeping water.
The purpose of the present invention can also be solved using following technical measures:
Further, reinforcing bar " well " word arrangement forms " well " word reinforcing bar, and " well " word reinforcing bar is seated on drainage sump and water-stopping steel
The connection of snare bottom, sealing steel ring sleeve side wall are also welded with reinforcing bar, and the reinforcing bar is equipped with seal ring and is inserted into armored concrete
In layer.
Further, the groove is the groove of 50*50mm.
Further, the bottom cushion is thickness 100mm bottom cushion.
Further, the drainpipe that diameter is 25mm is connected at the discharge outlet, drainpipe connects suction pump.The row
Suction pump is provided at water pipe, during basement construction, worker can also actively start suction pump and take out the water of drainage sump
It is extraneous out, realize that drainage sump carries out active pressure release.
Further, the discharge opening is connected with blind pipe, and the blind pipe is the pvc pipe of diameter 75mm, and pvc pipe is longitudinal
It is provided with 5mm through-hole at 200mm, lateral 10mm and is wrapped up with the permeable cloth of glass.
Further, the waterproof roll layer and blind pipe intersection are provided with fillet and turn over 150mm.
Further, the pervious bed is backfilled outside the drainage sump 200mm radius.Materials'use water-permeable brick (is let out when construction
Water), medium coarse sand (sluicing), inbuilt blind pipe aperture, guarantee drainage sump use when water flowing it is good, achieve the effect that pressure release.
Further, it pours in drainage sump at slightly expanded concrete to the bottom plate of basement, is poured on the bottom plate of basement
Build the expansive concrete of impermeabilisation grade P8.The present invention checks through designing unit and checks, meet anti-floating after basement closing
It is required that can shunt in a well, and slightly expanded concrete being poured in pressure release well and is set at basement bottom board, impermeabilisation grade is poured on bottom plate
The expansive concrete of P8, groove are blocked using leak stopping king, quick shut-in well can be realized, and greatly improve the water-impervious of basement
Performance.
Beneficial effects of the present invention are as follows:
The present invention in basement bottom board work progress by reserving decompression drainage sump, and when level of ground water increases, water is through drainage sump
Discharge, the supporting power of room bottom plate under Groundwater can be effectively reduced, compared with prior art 1 and the prior art 2, this method economy have
Effect, construction is simple is quick, can fundamentally solve the problems, such as construction stage basement floating-up.
Drainage sump of the present invention using the form of construction work set is stayed in advance, do over again by reduction, shortens the construction period, and saving is constructed into
This, reserved drainage sump construction technology is simple, and at low cost, effect is good, can effectively mitigate what cell structure under Groundwater generated
Supporting power guarantees the safety of basement structure.
The each drainage sump configuration drainpipe of the present invention and blind pipe, cause basement buoyancy excessively high, ground when level of ground water rises
Launching stress is concentrated toward spilling at decompression drainage sump, and the water of spilling is higher by reserved sluicing open height and is then flowed to basement automatically
Sump, after the water level of basement sump reaches drain height preset by liquid level controller, suction pump is by basement
Sump is discharged to outside basement sump.
The present invention is checked through designing unit and is checked after basement closing, is met anti-floating and is required to shunt in a well, shut-in well is logical
Crossing above-mentioned steps can be completed shut-in well, and entire shut-in procedures are simple, and slightly expanded concrete is poured in pressure release well, and groove is adopted
It is blocked with leak stopping king, quick shut-in well can be realized, effectively prevent seeping water.
Detailed description of the invention
Fig. 1 is the decompression drainage sump schematic diagram of basement anti-floating of the invention.
Fig. 2 is the A-A diagrammatic cross-section of the decompression drainage sump of basement anti-floating of the invention.
Fig. 3 is the sealing steel ring sleeve and " well " word reinforcing bar connection signal of the decompression drainage sump of basement anti-floating of the invention
Figure.
Fig. 4 is the decompression drainage sump distribution of basement anti-floating of the invention and the sluicing process signal of basement sump
Figure.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
Embodiment, in conjunction with shown in Fig. 1 to Fig. 4, a kind of manufacture craft of the decompression drainage sump of basement anti-floating,
Step 1: depth is dug under basement in the well of 50CM；
Step 2: the bottom casting concrete bed course 1 of well；
Step 3: building water-permeable brick 2 on concrete cushion 1, and water-permeable brick 2 surrounds drainage sump 3；
Step 4: 3 periphery backfill coarse sand of drainage sump or disintegrating slag form pervious bed 4；
Step 5: 3 top of drainage sump is provided with discharge opening 31 along its circumferencial direction interval；
Step 6: fixed sealing steel ring sleeve 5,5 lower end of sealing steel ring sleeve are inserted into drainage sump 3, and ground is exposed in 5 upper end of sealing steel ring sleeve
Outside the bottom plate 6 of lower room；
Step 7: bottom plate 6 pours bottom cushion 7；
Step 8: waterproof coiled material layer 8 is laid on bottom cushion 7；
Step 9: pouring reinforcement concrete layer 9 on waterproof roll layer 8, reinforced concrete floor 9 are reserved with along sealing steel ring sleeve periphery
Groove 91.
Step 10: discharge outlet 51 is provided at the sealing steel ring sleeve 5 of the upward 200CM of bottom plate 6.
Further, 10 " well " word arrangement of reinforcing bar forms " well " word reinforcing bar 100, and " well " word reinforcing bar 100 is seated at sluicing
It is connect on well with 5 bottom of sealing steel ring sleeve, 5 side wall of sealing steel ring sleeve is also welded with reinforcing bar 10, and the reinforcing bar 10 is equipped with sealing
Ring 200 is simultaneously inserted into reinforced concrete floor 9.
Further, the groove 91 is the groove 91 of 50*50mm.
Further, the bottom cushion 7 is thickness 100mm bottom cushion 7.
Further, the drainpipe (not showing in figure) that diameter is 25mm is connected at the discharge outlet 51, drainpipe connects
Logical suction pump 300.
Further, the discharge opening 31 is connected with blind pipe 400, and the blind pipe is the pvc pipe of diameter 75mm, and pvc pipe is vertical
To 200mm, it is provided with 5mm through-hole at lateral 10mm and is wrapped up with the permeable cloth of glass.
Further, the waterproof roll layer 8 and 400 intersection of blind pipe are provided with fillet and turn over 150mm.
Further, the pervious bed 4 is backfilled outside the 200mm radius of the drainage sump 3.
A kind of shut-in well technique of the decompression drainage sump of basement anti-floating:
Step 1: the water of drainage sump 3 is emptied by discharge outlet 51；
Step 2: sealing steel ring sleeve 5 is cut off；
Step 3: the primary concreting slightly expanded concrete in drainage sump 3 is shunt in a well；
Step 4: it is blocked at groove 91 using leak stopping king.
Further, it is poured in drainage sump 3 at slightly expanded concrete to the bottom plate 6 of basement, on the bottom plate 6 of basement
Pour the expansive concrete of impermeabilisation grade P8.
The each drainage sump 3 of the present invention configures drainpipe (not showing in figure) and blind pipe 400, when level of ground water rising causes ground
Lower room buoyancy is excessively high, and groundwater pressure is concentrated toward spilling at decompression drainage sump 3, and the water of spilling is higher by reserved 31 height of discharge opening
It is then flowed to basement sump 500 automatically, when the water level of basement sump 500 reaches through the preset row of liquid level controller
After water height, suction pump 300 is discharged to basement sump outside basement sump.
The present invention in 6 work progress of bottom plate of basement by reserving decompression drainage sump, and when level of ground water increases, water is passed through
Drainage sump discharge, can effectively reduce the supporting power of the bottom plate 6 of room under Groundwater, and compared with prior art 1 and the prior art 2,
This method economical and effective, construction is simple is quick, can fundamentally solve the problems, such as construction stage basement floating-up.
Drainage sump 3 of the present invention using the form of construction work set is stayed in advance, do over again by reduction, shortens the construction period, and saving is constructed into
This, reserved 3 construction technology of drainage sump is simple, and at low cost, effect is good, can effectively mitigate what cell structure under Groundwater generated
Supporting power guarantees the safety of basement structure.
The present invention is checked through designing unit and is checked after basement closing, is met anti-floating and is required to shunt in a well, shut-in well is logical
Crossing above-mentioned steps can be completed shut-in well, and entire shut-in procedures are simple, and slightly expanded concrete is poured in pressure release well 3, groove 91
Place is blocked using leak stopping king, and quick shut-in well can be realized, effectively prevent seeping water, and to be responsible for periphery several for a suction pump 300
The draining of drainage sump 3 improves the utilization rate of suction pump 300
Guarantee that water flowing is good when drainage sump uses, achievees the effect that pressure release, therefore materials'use water-permeable brick 2 when the construction of drainage sump 3
(sluicing), medium coarse sand (sluicing), the aperture of inbuilt blind pipe 400 guarantee to play waterproof action after drainage sump 3 is closed.
Subtract further more, drainage sump 3 must will be indicated when constructing with basement bottom board synchronous construction, casting concrete bed course 1
Press drainage sump 3 position, avoid leakage set, mistake is set and the later period digs again.
Claims (10)
1. a kind of manufacture craft of the decompression drainage sump of basement anti-floating, includes the following steps,
Step 1: depth is dug under basement in the well of 50-60CM；
Step 2: the bottom casting concrete bed course of well；
Step 3: building water-permeable brick on concrete cushion, and water-permeable brick surrounds drainage sump；
Step 4: drainage sump periphery backfills coarse sand or disintegrating slag forms pervious bed；
Step 5: drainage sump top is provided with discharge opening along its circumferencial direction interval；
Step 6: fixed sealing steel ring sleeve, sealing steel ring sleeve lower end are inserted into drainage sump, and basement is exposed in sealing steel ring sleeve upper end
Bottom plate outside；
Step 7: bottom slab concreting bottom cushion；
Step 8: waterproof coiled material layer is laid on bottom cushion；
Step 9: pouring reinforcement concrete layer on waterproof roll layer, reinforced concrete floor are reserved with recessed along sealing steel ring sleeve periphery
Slot；
Step 10: discharge outlet is provided at the sealing steel ring sleeve of the upward 200-250CM of bottom plate.
2. a kind of shut-in well technique of the decompression drainage sump of basement anti-floating, includes the following steps,
Step 1: the water of drainage sump is emptied by discharge outlet；
Step 2: sealing steel ring sleeve is cut off；
Step 3: the primary concreting slightly expanded concrete in drainage sump is shunt in a well；
Step 4: groove is blocked using leak stopping king.
3. the manufacture craft of the decompression drainage sump of basement anti-floating according to claim 1, it is characterised in that: the reinforcing bar
" well " word arrangement forms " well " word reinforcing bar, and " well " word reinforcing bar is seated on drainage sump to be connect with sealing steel ring sleeve bottom, sealing steel ring
Set side wall is also welded with reinforcing bar, and the reinforcing bar is equipped with seal ring and is inserted into reinforced concrete floor.
4. the manufacture craft of the decompression drainage sump of basement anti-floating according to claim 1, it is characterised in that: the groove is
The groove of 50*50mm.
5. the manufacture craft of the decompression drainage sump of basement anti-floating according to claim 1, it is characterised in that: the base pad
Layer is thickness 100mm bottom cushion.
6. the manufacture craft of the decompression drainage sump of basement anti-floating according to claim 1, it is characterised in that: the discharge outlet
Place is connected with the drainpipe that diameter is 25mm, and drainpipe connects suction pump.
7. the manufacture craft of the decompression drainage sump of basement anti-floating according to claim 1, it is characterised in that: the discharge opening
It is connected with blind pipe, the blind pipe is the pvc pipe of diameter 75mm, is provided with 5mm through-hole at pvc pipe longitudinal direction 200mm, lateral 10mm and is used in combination
The permeable cloth package of glass.
8. the manufacture craft of the decompression drainage sump of basement anti-floating according to claim 1, it is characterised in that: the waterproof roll
Material layer and blind pipe intersection are provided with fillet and turn over 150mm.
9. the shut-in well technique of the decompression drainage sump of basement anti-floating according to claim 1, it is characterised in that: the drainage sump
The pervious bed is backfilled outside 200mm radius.
10. the shut-in well technique of the decompression drainage sump of basement anti-floating according to claim 2, it is characterised in that: in drainage sump
It inside pours at slightly expanded concrete to the bottom plate of basement, the expansion coagulation of impermeabilisation grade P8 is poured on the bottom plate of basement
Soil.
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| CN201910528697.2A CN110258660A (en) | 2019-06-18 | 2019-06-18 | The manufacture craft and shut-in well technique of the decompression drainage sump of basement anti-floating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111593771A (en) * | 2020-04-02 | 2020-08-28 | 中建六局土木工程有限公司 | Construction method of anti-floating decompression system of basement bottom plate |
| CN111593771B (en) * | 2020-04-02 | 2024-04-23 | 中建六局土木工程有限公司 | Construction method of anti-floating pressure-reducing system of basement bottom plate |
| CN115162423A (en) * | 2022-06-15 | 2022-10-11 | 新城控股集团股份有限公司 | Temporary water drainage and pressure reduction system and method for basement |
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Inventor after: Ma Xiaojun Inventor after: Hu Yuejun Inventor after: Jiang Shougao Inventor after: Nie Shaolu Inventor after: Chen Weijun Inventor before: Jiang Shougao Inventor before: Nie Shaolu Inventor before: Chen Weijun |
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Application publication date: 20190920 |