CN202012073U - Draining device of foundation pit support surface aquitard - Google Patents
Draining device of foundation pit support surface aquitard Download PDFInfo
- Publication number
- CN202012073U CN202012073U CN201120101302XU CN201120101302U CN202012073U CN 202012073 U CN202012073 U CN 202012073U CN 201120101302X U CN201120101302X U CN 201120101302XU CN 201120101302 U CN201120101302 U CN 201120101302U CN 202012073 U CN202012073 U CN 202012073U
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- Prior art keywords
- aquitard
- gutter
- soil
- foundation pit
- filter screen
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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.)
- Expired - Lifetime
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a draining device of a foundation pit support surface aquitard, which comprises a support surface. Aquitard soil is arranged on the outer side of the support surface, at least one drain pipe is disposed in the support surface, one part of the drain pipe is located in the aquitard soil on the outer side of the support surface, and the other part of the drain pipe is exposed on the inner side of the support surface. Water seepage through-holes are arranged around the drain pipe on the side of the aquitard, the outer side of the seepage through holes of the drain pipe is wrapped by a filter screen, space is reserved between the filter screen and the aquitard soil, and the space is filled with filter materials. The draining device of the foundation pit support surface aquitard has the advantages that, by means of the good effect of the drain pipe on removing water in an aquitard, not only water in soil mass flows into the drain pipe through the water seepage through-holes and then is discharged through the drain pipe, but also solid particles in the soil mass which are discharged with water flow during water discharging process are reduced due to filtering of the filter materials and the filter screen.
Description
Technical field
The utility model belongs to building engineering field, and particularly a kind of dewatering installation of pattern foundation pit supporting structure face aquitard, this device include a body, and the periphery of body is provided with aperture, is surrounded by filter screen in the outside of aperture, by this pipe is imbedded aquitard water is drawn.
Background technology
Development along with urbanization process, the urban space is more and more littler, the development and use of the underground space are increasing, the foundation depth of common buildings engineering has all surpassed 10m, contain the water yield in the local soil layer and be called aquitard greatly, during for the excavation of foundation pit supporting construction at the following position of aquitard, aquitard has bigger influence to the stability of side slope and safety and basement structure construction, and perched water seepage flow usually is the key factor that causes foundation ditch soil-slope sloughing.Adopt dewatering measure and the measure construction cost height that intercepts water, operation easier big, effect is undesirable; And adopting the draining of normal discharge pipe, causing soil body particle to run off after the particle in the soil body is discharged with current during the water conservancy diversion of water in the aquitard influences side slope safety.
Summary of the invention
The purpose of this utility model is the dewatering installation technical scheme that proposes a kind of pattern foundation pit supporting structure face aquitard, this scheme adopts the gutter that contains porous to imbed aquitard, be provided with filtration beds around gutter, filtration beds has kept soil particle and has not been run off, and again the water in the aquitard is drawn.
To achieve these goals, the technical solution of the utility model is: a kind of dewatering installation of pattern foundation pit supporting structure face aquitard, comprise an armour layer, the outside of propping up armour layer is an aquitard soil, have at least a gutter to be arranged in the armour layer, the part of gutter is in an aquitard soil in the armour layer outside, gutter another part is exposed at supporting surface layer inboard outward, around the gutter of aquitard side, be provided with the infiltration open-work, the outside at gutter infiltration open-work is enclosed with filter screen, between filter screen and aquitard soil, leave the space, be filled with filtrate in the described space.
Further preferred version is, described gutter is plastic pipe or iron pipe, and gutter is downward-sloping to an armour layer inboard from aquitard.
Further preferred version is, described filter screen is plastic filter screen or metal screen, and the aperture of filter screen is 0.2mm to 1mm.
Further preferred version is, described filtrate is a granular filter material, and particle grain size is 2mm to 4mm.
Further preferred version is to fill up filtrate in the described gutter.
The beneficial effects of the utility model are: for the glassware for drinking water of getting rid of in the aquitard good effect is arranged by gutter, not only the water in the soil body enters in the gutter by the infiltration hole, discharge by gutter then, and water has reduced in the soil body solid particle by filtrate and strainer filtering when discharging and has discharged with current.Gutter both can solve the processing of original aquitard in soil excavation, the pattern foundation pit supporting structure process, when can be used for rainy season construction again in the pattern foundation pit supporting structure process the backwater that forms of sweat handle and the processing of the backwater that local pipeline seepage forms.Gutter can be united use with the drainage system of foundation ditch toe and the gathering system on ground, handles the bigger soil layer of backwater water content.Gutter both can use the processing aquitard separately, also can be used the processing phreatic water with the foundation pit dewatering and the control method that intercepts water.
Below in conjunction with drawings and Examples the utility model being done one describes in detail.
Description of drawings
Fig. 1 is the utility model structure chart;
Fig. 2 is drain structure figure.
The specific embodiment
A kind of pattern foundation pit supporting structure face, also be the dewatering installation embodiment of soil excavation process aquitard, referring to Fig. 1 and Fig. 2, described dewatering installation comprises an armour layer 1, the outside of propping up armour layer is an aquitard soil 2, have at least a gutter 3 to be arranged in the armour layer, the part of described gutter is in an aquitard soil in the armour layer outside, gutter another part is exposed at supporting surface layer inboard outward, around the gutter of aquitard side, be provided with infiltration open-work 3-1, the outside at gutter infiltration open-work is enclosed with filter screen 4, between filter screen and aquitard soil, leave the space, be filled with filtrate 5 in the described space.
Wherein, described gutter is plastic pipe or iron pipe, and gutter is downward-sloping to an armour layer inboard from aquitard.Described filter screen is plastic filter screen or metal screen, and the aperture of filter screen is 0.2mm to 1mm.Described filtrate is granular aggregate grading filtrate, and the sandstone particle grain size is 2mm to 4mm.In order to adapt to the situation of aquitard inclement condition, place soil losses and can in described gutter, fill up filtrate.
The diameter of gutter described in the present embodiment is preferably 50mm, and gutter is arranged in the gutter periphery twist in the infiltration hole of aquitard part.In order to prevent that the aquitard soil body from flowing out with infiltration, filter screen will satisfy the filtration requirement, and therefore best aperture is 0.5mm.Space drain hole among Fig. 1 is to adopt luoyang spade or other instrument to carry out pore-forming on the aquitard of supporting is domatic, and drilling diameter is at 10mm to 200mm, and depth of pore forming satisfies drainage requirement, has certain inclination angle to satisfy drainage requirement.Fill up filtrate behind the pore-forming in the hole, and then gutter is embedded in the filtrate, so the distance that gutter enters aquitard soil is 25mm to 75mm that gutter is downward-sloping, finally sealed props up armour layer.Water in the aquitard after the infiltration hole enters in the floral tube, is discharged the soil body by the floral tube water conservancy diversion by filtrate and strainer filtering then, and the filtration of current by filtrate and filter screen reduced discharging with current of solid particle in the soil body.
Be less soil layer, the pore-forming of cohesion such as the layer of sand hole soil layer that easily collapses for aquitard as mentioned above, gutter can adopt the bigger steel pipe of diameter, and steel pipe is made into the back as mentioned above and directly heads into the back form gutter behind the solid filtrate parcel of pipe filter screen.
The gutter construction is simple, flexible, cheap, treatment effect is good; remarkable to the aquitard seepage problem effect in the solution foundation ditch; has good economic benefit; avoid a large amount of pump drainage underground water simultaneously; groundwater resources have effectively been protected; the underground water that the gutter water conservancy diversion goes out also can rationally utilize after collecting, and has good social benefit.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. the dewatering installation of a pattern foundation pit supporting structure face aquitard, comprise an armour layer, the outside of propping up armour layer is an aquitard soil, it is characterized in that, have at least a described gutter to be arranged in the armour layer, the part of gutter is in an aquitard soil in the armour layer outside, gutter another part is exposed at supporting surface layer inboard outward, around the gutter of aquitard side, be provided with the infiltration open-work, the outside at gutter infiltration open-work is enclosed with filter screen, between filter screen and aquitard soil, leave the space, be filled with filtrate in the described space.
2. the dewatering installation of a kind of pattern foundation pit supporting structure face aquitard according to claim 1 is characterized in that, described gutter is plastic pipe or iron pipe, and gutter is downward-sloping to an armour layer inboard from aquitard.
3. the dewatering installation of a kind of pattern foundation pit supporting structure face aquitard according to claim 1 is characterized in that, described filter screen is plastic filter screen or metal screen, and the aperture of filter screen is 0.2mm to 1mm.
4. the dewatering installation of a kind of pattern foundation pit supporting structure face aquitard according to claim 1 is characterized in that described filtrate is a granular filter material, and particle grain size is 2mm to 4mm.
5. the dewatering installation of a kind of pattern foundation pit supporting structure face aquitard according to claim 1 is characterized in that, fills up filtrate in the described gutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120101302XU CN202012073U (en) | 2011-04-08 | 2011-04-08 | Draining device of foundation pit support surface aquitard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120101302XU CN202012073U (en) | 2011-04-08 | 2011-04-08 | Draining device of foundation pit support surface aquitard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012073U true CN202012073U (en) | 2011-10-19 |
Family
ID=44782686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120101302XU Expired - Lifetime CN202012073U (en) | 2011-04-08 | 2011-04-08 | Draining device of foundation pit support surface aquitard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012073U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605793A (en) * | 2012-03-15 | 2012-07-25 | 西安理工大学 | Moisture transfer and ecological management method for loess slope |
| CN103993595A (en) * | 2014-05-30 | 2014-08-20 | 东南大学 | Water-draining and anti-seepage method for high-water-content dredged mud storage yard cofferdam space |
| CN104234065A (en) * | 2014-09-24 | 2014-12-24 | 天津一建建筑工程有限公司 | Leakage drainage structure of waterproof curtain |
| CN104278686A (en) * | 2014-05-30 | 2015-01-14 | 江苏鸿基水利建设工程有限公司 | Spatial drainage and anti-seepage system for high-water-content dredged sediment yard cofferdam |
| CN105064299A (en) * | 2015-09-10 | 2015-11-18 | 国家电网公司 | Detachable draining hole filtering plug and installation method thereof |
| CN105672243A (en) * | 2016-01-07 | 2016-06-15 | 长安大学 | Reversed filter drainage pipe and construction method thereof |
| CN105821892A (en) * | 2016-03-25 | 2016-08-03 | 河南省中原水利水电工程集团有限公司 | Horizontal screen pipe dewatering system and treatment method |
| CN108343081A (en) * | 2017-01-22 | 2018-07-31 | 北京爱地地质勘察基础工程公司 | Foundation pit side-wall drainage arrangement and construction method |
| CN110644498A (en) * | 2019-09-23 | 2020-01-03 | 李贺清 | Deep foundation pit slope quicksand handling method |
| CN112302029A (en) * | 2020-09-18 | 2021-02-02 | 中石化宁波工程有限公司 | Drainage tensile foundation pit supporting structure |
-
2011
- 2011-04-08 CN CN201120101302XU patent/CN202012073U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605793B (en) * | 2012-03-15 | 2014-11-05 | 西安理工大学 | Moisture transfer and ecological management method for loess slope |
| CN102605793A (en) * | 2012-03-15 | 2012-07-25 | 西安理工大学 | Moisture transfer and ecological management method for loess slope |
| CN104278686B (en) * | 2014-05-30 | 2016-05-25 | 江苏鸿基水利建设工程有限公司 | High-moisture percentage dredging dust field space, cofferdam draining seepage control system |
| CN103993595A (en) * | 2014-05-30 | 2014-08-20 | 东南大学 | Water-draining and anti-seepage method for high-water-content dredged mud storage yard cofferdam space |
| CN104278686A (en) * | 2014-05-30 | 2015-01-14 | 江苏鸿基水利建设工程有限公司 | Spatial drainage and anti-seepage system for high-water-content dredged sediment yard cofferdam |
| CN104234065A (en) * | 2014-09-24 | 2014-12-24 | 天津一建建筑工程有限公司 | Leakage drainage structure of waterproof curtain |
| CN105064299A (en) * | 2015-09-10 | 2015-11-18 | 国家电网公司 | Detachable draining hole filtering plug and installation method thereof |
| CN105672243A (en) * | 2016-01-07 | 2016-06-15 | 长安大学 | Reversed filter drainage pipe and construction method thereof |
| CN105672243B (en) * | 2016-01-07 | 2017-12-19 | 长安大学 | A kind of anti-filter drainpipe and its construction method |
| CN105821892A (en) * | 2016-03-25 | 2016-08-03 | 河南省中原水利水电工程集团有限公司 | Horizontal screen pipe dewatering system and treatment method |
| CN108343081A (en) * | 2017-01-22 | 2018-07-31 | 北京爱地地质勘察基础工程公司 | Foundation pit side-wall drainage arrangement and construction method |
| CN110644498A (en) * | 2019-09-23 | 2020-01-03 | 李贺清 | Deep foundation pit slope quicksand handling method |
| CN112302029A (en) * | 2020-09-18 | 2021-02-02 | 中石化宁波工程有限公司 | Drainage tensile foundation pit supporting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100009 Pei Yongli No. 3, Xicheng District, Beijing Patentee after: CHINA XINXING CONSTRUCTION ENGINEERING Co.,Ltd. Address before: 100009 Pei Yongli No. 3, Xicheng District, Beijing Patentee before: CHINA XINXING BUILDING ENGINEERING Corp. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100009 Pei Yongli No. 3, Xicheng District, Beijing Patentee after: CHINA XINXING BUILDING ENGINEERING Corp. Address before: 100079 Beijing City, Fengtai District Yongwai, Shun eight No. 9 Patentee before: CHINA XINXING BAOXIN CONSTRUCTION Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |