CN209066468U - A kind of base pit dewatering device - Google Patents
A kind of base pit dewatering device Download PDFInfo
- Publication number
- CN209066468U CN209066468U CN201821792080.9U CN201821792080U CN209066468U CN 209066468 U CN209066468 U CN 209066468U CN 201821792080 U CN201821792080 U CN 201821792080U CN 209066468 U CN209066468 U CN 209066468U
- Authority
- CN
- China
- Prior art keywords
- water
- well
- dewatering
- filtering
- pit
- Prior art date
- 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.)
- Active
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a kind of base pit dewatering devices, belong to base pit dewatering technical field of construction.Including catch pit, the water-filtering well tube that earth's surface dewatering well below is arranged in and is arranged in dewatering well, the lower part of the water-filtering well tube is divided into chimney filter, top is divided into real pipe, and drainpipe is equipped in water-filtering well tube, and the nozzle of drainpipe is higher than water-filtering well tube surface；The bottom of the drainpipe is connected with deep well pump；Be filled partially under between the water-filtering well tube and dewatering well filter material, on be filled partially with clay ball.The utility model structure improves soil solidifying degree, increases ground shearing.Lowering of watertable reduces water content of soil, to improve soil solidifying degree, reduces native Pore Pressure, increases effective stress in soil, corresponding soil shear strength is enhanced.
Description
Technical field
The utility model relates to a kind of base pit dewatering devices, belong to base pit dewatering technical field of construction.
Background technique
Deep foundation pit construction is the emphasis in construction, is the basis of whole building, deep foundation pit construction it is safe and reliable, directly
Connect the safety for being related to skyscraper, stability and permanence.For the normal construction for guaranteeing building construction basis and basement
Unaffected with Adjacent Buildings, underground utilities, a series of prospectings for being carried out to the soil body that below ground excavates are designed, are applied
The work such as work and detection, are referred to as deep-foundation pit engineering.The support system of deep-foundation pit engineering should be related to deeper earth excavation,
The safety and normal use for guaranteeing foundation pit adjacent buildings and underground utilities have block underground water seepage flow, guarantor into foundation pit again
Demonstrate,prove the function that operation side is dry in foundation pit.
The geological prospecting report content analysis that situation and design exploration unit provide is explored according to engineering site, to can guarantee
The stabilization of excavation slope accelerates the speed of application of engineering, reduces engineering cost, and basic earthwork must take effective drop before excavating
Water measure.Since level of ground water is higher, to make foundation pit be in dry construction condition, well-points dewatering method is taken to reduce underground
Water level.
Utility model content
In view of the above-mentioned problems existing in the prior art, the utility model proposes a kind of base pit dewatering devices.
The utility model, which is that the following technical solution is employed, to be realized:
A kind of base pit dewatering device, which is characterized in that exist including catch pit, setting in earth's surface dewatering well below and setting
Water-filtering well tube in dewatering well, the lower part of the water-filtering well tube is divided into chimney filter, top is divided into real pipe, and draining is equipped in water-filtering well tube
The nozzle of pipe, drainpipe is higher than water-filtering well tube surface；The bottom of the drainpipe is connected with deep well pump；The water-filtering well tube and drop
Be filled partially under between well filter material, on be filled partially with clay ball.
Further, the water-filtering well tube bottom is equipped with pipe cap.
Further, graded broken stone layer is equipped in the catch pit.
Further, the Earth surface plane around the catch pit is equipped with sole plate.
Further, the inner wall block of the catch pit has ornamental slab for paving the floor masonry.
Compared with prior art, the utility model has the beneficial effects that
(1) soil solidifying degree is improved, ground shearing is increased.Lowering of watertable reduces water content of soil, thus
Soil solidifying degree is improved, native Pore Pressure is reduced, increases effective stress in soil, corresponding soil shear strength is increased
By force；
(2) it is suitable for the lesser water-bearing layer of infiltration coefficient and the biggish dewatering project of precipitation depth, precipitation depth is big, can have
Effect ground intercepts underground water and flows into foundation pit, residual aquitard thickness is reduced as far as, to the stabilization for keeping side slope and inter-pile soil
Favorably.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Wherein, the above drawings include the following reference numerals: 1, catch pit；2, dewatering well；3, drainpipe；4, deep well pump；5,
Clay ball；6, pipe cap；7, graded broken stone layer；8, sole plate；9, ornamental slab for paving the floor is built；10, filter material；11, chimney filter；12, real pipe.
Specific embodiment
In order to which the utility model aim, technical solution is more clearly understood, below by embodiment, to the utility model
It is described in further detail.
Embodiment one:
As shown in Figure 1, a kind of base pit dewatering device, including catch pit 1, setting are in earth's surface dewatering well 2 below and setting
Water-filtering well tube in dewatering well 2, the lower part of the water-filtering well tube is divided into chimney filter 11, top is divided into real pipe 12, in water-filtering well tube
Equipped with drainpipe 3, the nozzle of drainpipe 3 is higher than water-filtering well tube surface；The bottom of the drainpipe 3 is connected with deep well pump 4；It is described
Be filled partially under between water-filtering well tube and dewatering well 2 filter material 10, on be filled partially with clay ball 5.The water-filtering well tube bottom
Equipped with pipe cap 6.Graded broken stone layer 7 is equipped in the catch pit 1.Earth surface plane around the catch pit 1 is equipped with basic bottom
Plate 8.The inner wall block of the catch pit 1 has ornamental slab for paving the floor to build 9.
By the drainage of foundation pit precipitation scheme of design, the outer open drain of first excavation foundation bottom plate 8 and catch pit 1.Bright ditch excavates
Depth is than earth excavation depth depth 1m or so, and 1 cutting depth of catch pit is than bright ditch depth 1m or so.Basis is applied in advance by drawing water
Work range underground water is down to quasi- cutting depth hereinafter, when so mode is constructed to away from design basis depth 1.5m or so, is catchmenting
Drilling machine pore-forming is used in hole 1, is buried special well-point pipe, water is down in advance substrate or less 500mm, catchments in the plate that can construct at this time
Hole 1.By 1 well-points dewatering of catch pit, guarantee that earth excavation is constructed under no groundwater condition, construction method is as follows:
(1) interim 1 precipitation point of catch pit construction early period.Open drain dig to determine depth, by 1 plan-position of catch pit after
It is continuous to dig depth 1m or so.Using the oil drum for getting through filtration hole up and down is drilled with as 1 wall of catch pit, filling level is with broken between surrounding and the soil body
Rock layers 7, hole heelpiece 150mm thickness graded broken stone layer 7 are used as drainage layer, water pump and self-con-tained unit are installed in catch pit 1, control water
Position and water pump running.
(2) 1 precipitation point of later period catch pit and the construction of bright ditch.When cutting the earth to a last layer depth, bright ditch soil is excavated as required
Side.Bright ditch uses brick furrow bank, is built into ornamental slab for paving the floor close to bottom plate side, forms penetrating passage, and bottom of trench uses C20 pea gravel concreten,
0.5% looks for slope.The most shallow place of bright ditch should be lower than structural slab bottom depth at least 300mm, furrow width 500mm.1 precipitation point of catch pit is according to pumping
Size between wetting system working pit determines 1 planar dimension of catch pit.1m × 1m catch pit 1 is generally used, it is special using what is voluntarily researched and developed
With in well water pipe embedment catch pit 1, graded broken stone loaded filter is filled in surrounding.
(3) precipitation facility and precipitation requirement.Precipitation facility is by well-point pipe, filter layer, self prime pump, general pipeline, branch pipe, water
The composition such as water pump suction pipe, water-level probe, self-con-tained unit.Water pump suction pipe is penetrated in special dedicated well-point pipe, is pacified before installation
Water-level probe is filled, by the control of the water level upper limit under blinding layer at 250mm, water level lower limit should reserve certain depth of water, prevent water pump
Air is sucked from suction nozzle, influences to draw water.Water level control parameter according to neighboring buildings ground situation and construction anti-floating load and
Construction determines water level control requirement, avoids because of various accident potential caused by drawing water excessive or precipitation not enough.
The above is only the preferred embodiment of the present invention and oneself, not with the utility model be limitation, it is all this
Made impartial modifications, equivalent substitutions and improvements etc., should be included in the utility model within the spirit and principle of utility model
Patent covering scope in.
Claims (5)
1. a kind of base pit dewatering device, which is characterized in that including catch pit (1), be arranged in earth's surface dewatering well below (2) and set
The water-filtering well tube in dewatering well (2) is set, the lower part of the water-filtering well tube is divided into chimney filter (11), top is divided into real pipe (12), filter
Drainpipe (3) are equipped in well pipe, the nozzle of drainpipe (3) is higher than water-filtering well tube surface；The bottom of the drainpipe (3) connects
There are deep well pump (4)；Be filled partially under between the water-filtering well tube and dewatering well (2) filter material (10), on be filled partially with clay
Ball (5).
2. base pit dewatering device according to claim 1, which is characterized in that the water-filtering well tube bottom is equipped with pipe cap (6).
3. base pit dewatering device according to claim 1, which is characterized in that be equipped with graded broken stone in the catch pit (1)
Layer (7).
4. base pit dewatering device according to claim 3, which is characterized in that the Earth surface plane around the catch pit (1)
It is equipped with sole plate (8).
5. base pit dewatering device according to claim 4, which is characterized in that the inner wall block of the catch pit (1) has ornamental slab for paving the floor
It builds (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821792080.9U CN209066468U (en) | 2018-10-31 | 2018-10-31 | A kind of base pit dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821792080.9U CN209066468U (en) | 2018-10-31 | 2018-10-31 | A kind of base pit dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209066468U true CN209066468U (en) | 2019-07-05 |
Family
ID=67097236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821792080.9U Active CN209066468U (en) | 2018-10-31 | 2018-10-31 | A kind of base pit dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209066468U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005386A (en) * | 2019-12-12 | 2020-04-14 | 中冶天工集团天津有限公司 | Deep foundation pit descending and discharging two-in-one water collecting well structure and construction method |
| CN111980041A (en) * | 2020-08-27 | 2020-11-24 | 河南科技大学 | Precipitation tank and foundation pit operation surface precipitation system |
| CN115094930A (en) * | 2022-07-19 | 2022-09-23 | 中铁十一局集团有限公司 | Auxiliary dewatering device and method for basement sump pit or elevator foundation pit |
-
2018
- 2018-10-31 CN CN201821792080.9U patent/CN209066468U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005386A (en) * | 2019-12-12 | 2020-04-14 | 中冶天工集团天津有限公司 | Deep foundation pit descending and discharging two-in-one water collecting well structure and construction method |
| CN111980041A (en) * | 2020-08-27 | 2020-11-24 | 河南科技大学 | Precipitation tank and foundation pit operation surface precipitation system |
| CN115094930A (en) * | 2022-07-19 | 2022-09-23 | 中铁十一局集团有限公司 | Auxiliary dewatering device and method for basement sump pit or elevator foundation pit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102454167B (en) | The construction method of especially big & deep open caisson | |
| CN109594564A (en) | A kind of anti-collapse construction method of Metro Deep Excavation open cut | |
| CN104563098B (en) | A kind of super-large diameter all steel casing does operation pore-creating filling pile construction method | |
| CN103046565B (en) | Draining method for ultra-deep batholith deep foundation pit | |
| CN209066468U (en) | A kind of base pit dewatering device | |
| CN102162253B (en) | Precipitation construction method employing pipe embedded in deep foundation pits | |
| CN107503257A (en) | One kind is close to mountain high-filled subgrade stabilization and Deformation control structure and construction method | |
| CN105544622B (en) | A kind of anti-floating system and its checking device of underground structure | |
| CN103088836A (en) | Sedimentation control method for pumping water and performing reinjection in well casing simultaneously | |
| CN110029680A (en) | A kind of deep foundation pit precipitation construction method | |
| CN110397050A (en) | A kind of light-duty draining barricade of novel beam anchor formula and its construction method | |
| CN108867673A (en) | A kind of underwater prevention method in the foundation pit based on the curtain that draws water | |
| CN207143981U (en) | 3rd is rich water half diagenesis Sandstone Section Metro station excavation discharge structure | |
| CN109339079A (en) | A kind of foundation pit water-stopping system and its construction technology close to river permeable stratum | |
| CN102995647B (en) | Underground water control method used for grouting and seepage insulation of pile hole | |
| CN107700497A (en) | A kind of building basement pattern foundation pit supporting structure and earth excavation construction method | |
| CN104831742B (en) | The Method on Dewatering of Foundation Pit that adjacent two layers low pressure water layer is not cut off by water barrier | |
| CN209260739U (en) | A kind of foundation pit water-stopping system close to river permeable stratum | |
| CN103806444A (en) | Soft soil layer rotary excavating pile construction method | |
| CN110080234A (en) | A method of it is excavated in the secondary central island of deep foundation pit of soft soil foundation | |
| CN105625448A (en) | Underground water drainage method and device for underground building | |
| CN104775444B (en) | A kind of method for wet environment protection archeological site earthen ruins Yield rainfall relation | |
| CN204435321U (en) | A kind of steam power station water intaking open channel | |
| CN210315908U (en) | Immersed tube type inspection well | |
| KR102051579B1 (en) | Soft ground improvement device and that method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 4f, development building, 8 Zhongshan Road, Shinan District, Qingdao City, Shandong Province 266071 Patentee after: Qingdao Construction Group Co.,Ltd. Patentee after: QINGJIAN GROUP Co.,Ltd. Address before: 4f, development building, 8 Zhongshan Road, Shinan District, Qingdao City, Shandong Province 266071 Patentee before: QINGJIAN GROUP Co.,Ltd. Patentee before: QINGJIAN GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |