CN217325443U - High groundwater water level excavation supporting cuts drainage system - Google Patents
High groundwater water level excavation supporting cuts drainage system Download PDFInfo
- Publication number
- CN217325443U CN217325443U CN202220756694.1U CN202220756694U CN217325443U CN 217325443 U CN217325443 U CN 217325443U CN 202220756694 U CN202220756694 U CN 202220756694U CN 217325443 U CN217325443 U CN 217325443U
- Authority
- CN
- China
- Prior art keywords
- drainage
- pipe
- foundation pit
- ditch
- water
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000003673 groundwater Substances 0.000 title claims abstract description 27
- 238000009412 basement excavation Methods 0.000 title description 5
- 238000005086 pumping Methods 0.000 claims abstract description 14
- 238000004062 sedimentation Methods 0.000 claims abstract description 14
- 239000011449 brick Substances 0.000 claims description 2
- 239000003651 drinking water Substances 0.000 claims 2
- 235000020188 drinking water Nutrition 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 26
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a high groundwater water level foundation pit supporting and intercepting drainage system, which comprises supporting piles arranged along the foundation pit wall, wherein an inter-column water stop pile is arranged between adjacent supporting piles, and a post-column water stop pile is arranged in the foundation pit wall at the rear side of the supporting pile; an open drainage ditch is arranged along the top of the foundation pit wall and is connected with a drainage system outside the foundation pit, an outer side drainage blind ditch is arranged along the bottom of the foundation pit wall, and outer side water collecting wells are arranged along the outer side drainage blind ditch at intervals; a first drainage connecting pipe is arranged at the bottom of the outer drainage blind ditch, a first water pumping pipe is connected at the junction of the first drainage connecting pipe and the outer water collecting well, and the first water pumping pipe extends downwards to the bottom of the outer water collecting well; be connected with the main drainage pipe on the first drainage connecting pipe, the one end of main drainage pipe is connected with the sedimentation tank after extending to the foundation ditch outward, is equipped with the suction pump on the main drainage pipe, is equipped with the blow off pipe on the sedimentation tank. The utility model has the characteristics of cut the drainage effectual, the construction safety is high, and construction convenience is fit for constructing in high groundwater water level region.
Description
Technical Field
The utility model relates to a drainage system is cut to foundation ditch, especially a high groundwater water level foundation ditch is strutted and is cut drainage system.
Background
The foundation pit is a construction soil pit with a certain depth excavated downwards during construction of a large building site, when the excavation depth of the foundation pit is lower than the underground water level burial depth, underground water around the foundation pit can be collected into the foundation pit, the underground water level in the foundation around the outer side of the foundation pit is reduced at the moment, the water pressure is reduced, and the surrounding foundation can sink when the water pressure is serious, so that great potential safety hazards are brought to surrounding buildings; meanwhile, after the underground water is collected in the foundation pit, the excavation and later construction of the foundation pit can be seriously influenced. Therefore, the underground water is cut and drained around the foundation pit before and after the foundation pit is excavated, so that the construction safety can be guaranteed, and the construction of the foundation pit can be facilitated.
At present, a plurality of foundation pit water intercepting and draining methods exist, but conventional water intercepting and draining facilities such as water piles, water collecting wells and water draining systems are basically not separated. In general foundation pit construction, through set up one row of stagnant water stake behind the fender pile, then set up drainage french drain and water collection well at foundation pit wall bottom, through the suction pump drainage just can satisfy basic construction requirement. However, when the construction is performed in the high groundwater level area, the groundwater general quantity is large, the water pressure is high, and the requirement of safe construction cannot be met by arranging the water intercepting and draining structure according to the conventional support, so that the water intercepting and draining system for the high groundwater level foundation pit support needs to be optimally designed again.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high groundwater water level excavation supporting cuts drainage system. The utility model has the characteristics of cut the drainage effectual, the construction safety is high, and construction convenience is fit for constructing in high groundwater water level region.
The technical scheme of the utility model: a high groundwater level foundation pit supporting, intercepting and draining system comprises supporting piles arranged along the wall of a foundation pit, an inter-column water-stopping pile is arranged between adjacent supporting piles, and a post-column water-stopping pile is arranged in the wall of the foundation pit at the rear side of each supporting pile; an open drainage ditch is arranged along the top of the foundation pit wall and is connected with a drainage system outside the foundation pit, an outer side blind drainage ditch is arranged along the bottom of the foundation pit wall, and outer side water collecting wells are arranged along the outer side blind drainage ditch at intervals; a first drainage connecting pipe is arranged at the bottom of the outer drainage blind ditch, a first water pumping pipe is connected at the junction of the first drainage connecting pipe and the outer water collecting well, and the first water pumping pipe extends downwards to the bottom of the outer water collecting well; be connected with the main drainage pipe on the first drainage connecting pipe, the one end of main drainage pipe is connected with the sedimentation tank after extending to the foundation ditch outward, is equipped with the suction pump on the main drainage pipe, is equipped with the blow off pipe on the sedimentation tank. This scheme is through setting up the two-layer stagnant water layer of stagnant water stake and post back stagnant water stake between the post to combine two drainage systems of open drain and catchment well drainage french drain, very big improvement cut the effect of drainage, guaranteed the inside and outside construction safety of foundation ditch, and make things convenient for the normal construction in the foundation ditch, be very suitable for when some high groundwater water level region are under construction.
In order to improve the open drainage effect, the drainage open trench is of a brick structure, so that drainage is smoother and less water seepage occurs.
In order to avoid blockage and further improve the open drainage effect, the drainage cut-off system for the high groundwater level foundation pit support is characterized in that a ditch cover plate is arranged at the top of the open drainage ditch, so that coarse sand and stone and garbage are prevented from entering the open drainage ditch to cause blockage.
In order to further improve the water collecting and draining effect in the foundation pit and ensure smooth construction in the foundation pit, the high-groundwater-level foundation pit supporting and intercepting and draining system is characterized in that a central drainage blind ditch is arranged in the middle area of the bottom of the foundation pit, a central water collecting well is arranged along the central drainage blind ditch, a second drainage connecting pipe is arranged at the bottom of the central drainage blind ditch and communicated with the first drainage connecting pipe, a second water pumping pipe is connected with the intersection of the second drainage connecting pipe and the central water collecting well and extends downwards to the bottom of the central drainage blind ditch, the water collecting well and the drainage blind ditch are arranged in the middle of the foundation pit, so that large-area water accumulation in the foundation pit can be avoided, the construction in the foundation pit is smoother, and the influence on the overall benefit of engineering is smaller.
In order to facilitate construction of the water intercepting and draining system, the high-groundwater-level foundation pit supporting and intercepting and draining system is characterized in that backfill gravels are filled in the central drainage blind ditch and the outer side drainage blind ditches, so that construction is more convenient, and the draining effect can be ensured.
In order to further conveniently cut drainage system's construction, aforementioned drainage system is cut in high groundwater water level foundation ditch support, be equipped with the drain pump on the blow off pipe, there is the recharge pipe through three-way valve connection on the blow off pipe of one side that the sedimentation tank was kept away from to the drain pump, and the tip of recharge pipe extends to and locates in the water level observation well outside the foundation ditch, through with recharging pipe and the integrated sharing of drain pipe to regard water level observation well as recharge well simultaneously, very big reduction cut drainage system's construction volume, it is more convenient to construct.
The utility model has the advantages that:
the utility model has the advantages of cut the drainage effectual, the construction safety is high, and construction convenience is fit for constructing in high groundwater water level region.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of a sump and drain of the cut-off drainage system of the foundation pit portion;
FIG. 3 is an overall layout cross-sectional view of a cut-off drainage system for a portion of a foundation pit;
fig. 4 is a plan view of a cut-off and drainage system of a foundation pit portion.
Description of reference numerals: 1-support piles, 2-inter-column water-stop piles, 3-post-column water-stop piles, 4-drainage open ditches, 5-outer drainage blind ditches, 6-outer water collecting wells, 7-first drainage connecting pipes, 8-first water pumping pipes, 9-drainage main pipes, 10-sedimentation basins, 11-water pumping pumps, 12-sewage draining pipes, 13-water ditch cover plates, 14-central drainage blind ditches, 15-central water collecting wells, 16-second drainage connecting pipes, 17-second water pumping pipes, 18-backfilled broken stones, 19-drainage pumps, 20-three-way valves, 21-recharge pipes and 22-water level observation wells.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
The embodiment of the utility model provides a:
a high groundwater level foundation pit supporting, intercepting and draining system comprises supporting piles 1 arranged along the wall of a foundation pit, water-stopping piles 2 between columns are arranged between adjacent supporting piles 1, and post-column water-stopping piles 3 are arranged in the wall of the foundation pit at the rear side of the supporting piles 1, as shown in attached figures 1-4; an open drainage ditch 4 is arranged along the top of the foundation pit wall, the open drainage ditch 4 is connected with a drainage system outside the foundation pit, an outer drainage blind ditch 5 is arranged along the bottom of the foundation pit wall, and outer water collecting wells 6 are arranged along the outer drainage blind ditch 5 at intervals; a first drainage connecting pipe 7 is arranged at the bottom of the outer drainage blind ditch 5, a first water pumping pipe 8 is connected at the junction of the first drainage connecting pipe 7 and the outer water collecting well 6, and the first water pumping pipe 8 extends downwards to the bottom of the outer water collecting well 6; be connected with main drainage pipe 9 on the first drainage connecting pipe 7, main drainage pipe 9's one end extends to and is connected with sedimentation tank 10 behind the foundation ditch outward, is equipped with suction pump 11 on the main drainage pipe 9, is equipped with blow off pipe 12 on the sedimentation tank 10.
The construction process comprises the following steps: determining the excavation boundary of a foundation pit according to planning, driving corresponding supporting piles 1, water-stopping piles 2 between columns and water-stopping piles 3 behind columns into the construction positions of the supporting piles 1, the water-stopping piles 2 between columns and the water-stopping piles 3 behind columns to form a supporting and water-stopping structure, excavating the foundation pit, excavating open drains 4 with the thickness of 300mm and 300mm along the top of the wall of the foundation pit, and adopting the method for the insufficient space
The PVC pipe replaces the open drain ditch 4, the open drain ditch 4 is drained to an external drainage system, and after the foundation pit is excavated to the bottom, an outer drainage blind ditch 5 with the diameter of 300mm x 300mm and an outer water collecting well 6 with the diameter of 1m and the depth of 2m are excavated at the bottom of the foundation pit wall along the foundation pit wall. Underground water and precipitation flow converge to the outside water collecting well 6 through the outside drainage blind ditch 5 after flowing into the foundation pit, are pumped into the sedimentation basin 10 through the water suction pump 11 for sedimentation, and then are naturally discharged through the sewage discharge pipe 12.
In another embodiment, the bottom and the side walls of the open drain trench 4 are constructed with a brickwork structure.
In another embodiment, the top of the open drain ditch 4 is provided with a ditch cover plate 13, so that coarse sand and stone and garbage can be prevented from entering the open drain ditch 4.
In another embodiment, a central drainage blind ditch 14 is arranged in the middle area of the bottom of the foundation pit, a central water collecting well 15 is arranged along the central drainage blind ditch 14, a second drainage connecting pipe 16 is arranged at the bottom of the central drainage blind ditch 14, the second drainage connecting pipe 16 is communicated with the first drainage connecting pipe 7, a second water pumping pipe 17 is connected to the junction of the second drainage connecting pipe 16 and the central water collecting well 15, and the second water pumping pipe 17 extends downwards to the bottom of the central drainage blind ditch 14. The drainage blind ditches 14 are constructed in a cross shape or a groined shape, and the specific arrangement quantity is determined according to the area of the bottom of the foundation pit so as to meet the drainage requirement as far as possible.
In another embodiment, the central blind drain 14 and the outer blind drain 5 are filled with backfill gravel 18.
In another embodiment, the drain pipe 12 is provided with a drain pump 19, the drain pipe 12 on the side of the drain pump 19 away from the sedimentation basin 10 is connected with a recharge pipe 21 through a three-way valve 20, the end of the recharge pipe 21 extends into a water level observation well 22 arranged outside the foundation pit, when the groundwater level is not abnormal, the wastewater is directly drained outwards through the drain pipe 12, when the groundwater level is abnormally lowered, the drained water is introduced into the water level observation well 22 after being converted through the three-way valve 20, and the groundwater level is replenished and recharged under the ground.
The above description is only for the purpose of illustrating the present invention and the appended claims, and the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. The utility model provides a high groundwater water level underground structure is strutted and is cut drainage system which characterized in that: the foundation pit supporting structure comprises supporting piles (1) arranged along the wall of a foundation pit, an intercolumnar water stop pile (2) is arranged between every two adjacent supporting piles (1), and a post-column water stop pile (3) is arranged in the wall of the foundation pit at the rear side of each supporting pile (1); an open drainage ditch (4) is arranged along the top of the foundation pit wall, the open drainage ditch (4) is connected with a drainage system outside the foundation pit, an outer drainage blind ditch (5) is arranged along the bottom of the foundation pit wall, and outer water collecting wells (6) are arranged along the outer drainage blind ditch (5) at intervals; a first drainage connecting pipe (7) is arranged at the bottom of the outer drainage blind ditch (5), a first water pumping pipe (8) is connected at the junction of the first drainage connecting pipe (7) and the outer water collecting well (6), and the first water pumping pipe (8) extends downwards to the bottom of the outer water collecting well (6); be connected with drain main (9) on first drainage connecting pipe (7), the one end of drain main (9) extends to and is connected with sedimentation tank (10) after the foundation ditch is outer, is equipped with suction pump (11) on drain main (9), is equipped with blow off pipe (12) on sedimentation tank (10).
2. The high groundwater level foundation pit supporting intercepting and draining system of claim 1, wherein: the open drainage ditch (4) is of a brick structure.
3. The high groundwater level foundation pit supporting and intercepting drainage system of claim 1 or 2, wherein: and a ditch cover plate (13) is arranged at the top of the open drainage ditch (4).
4. The high groundwater level foundation pit supporting and intercepting drainage system of claim 1, wherein: the middle zone of the bottom of foundation ditch is equipped with central drainage french drain (14), and central drainage french drain (14) is equipped with central sump pit (15) along the line, and central drainage french drain (14) bottom is equipped with second drainage even pipe (16), second drainage even pipe (16) with first drainage even pipe (7) intercommunication, second drainage even pipe (16) are connected with the intersection of central sump pit (15) and second drinking-water pipe (17), and second drinking-water pipe (17) downwardly extending to the bottom of central drainage french drain (14).
5. The high groundwater level foundation pit supporting intercepting and draining system of claim 4, wherein: and backfill gravels (18) are filled in the central drainage blind ditch (14) and the outer drainage blind ditches (5).
6. The high groundwater level foundation pit supporting intercepting and draining system of claim 1, wherein: be equipped with drain pump (19) on drain pipe (12), drain pump (19) are kept away from drain pipe (12) of one side of sedimentation tank (10) and are gone up through three-way valve (20) and are connected with recharge pipe (21), and the tip of recharge pipe (21) extends to and locates in water level observation well (22) outside the foundation ditch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220756694.1U CN217325443U (en) | 2022-04-03 | 2022-04-03 | High groundwater water level excavation supporting cuts drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220756694.1U CN217325443U (en) | 2022-04-03 | 2022-04-03 | High groundwater water level excavation supporting cuts drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217325443U true CN217325443U (en) | 2022-08-30 |
Family
ID=83003120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220756694.1U Expired - Fee Related CN217325443U (en) | 2022-04-03 | 2022-04-03 | High groundwater water level excavation supporting cuts drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217325443U (en) |
-
2022
- 2022-04-03 CN CN202220756694.1U patent/CN217325443U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102418347B (en) | Drainage construction method for blind drain and sump wells in deep foundation pit | |
| CN103046565A (en) | Draining method for ultra-deep batholith deep foundation pit | |
| CN111236284A (en) | Basement bottom and periphery underground water drainage method and structure | |
| CN110847199A (en) | Construction method for drainage of underground water of deep foundation pit | |
| CN110004935A (en) | A kind of locally deep pit drain measure trench system and construction method | |
| KR100665984B1 (en) | The construction method of basement self drainage | |
| CN216640547U (en) | Drainage decompression anti-floating system suitable for weak permeable soft soil stratum | |
| CN212641685U (en) | Underground garage drainage open ditch and blind ditch combine antiseep system | |
| CN112726659A (en) | Double-backflow-preventing retaining wall drain pipe and using method thereof | |
| CN217325443U (en) | High groundwater water level excavation supporting cuts drainage system | |
| CN204298837U (en) | Bright, dark drainage system | |
| CN104328836B (en) | A kind of environment-friendly type prefabricated pair of case deep hole type catch pit and construction method thereof | |
| CN209555956U (en) | Drop and drainage structure is secretly buried in a kind of drainage | |
| CN110185051A (en) | Deep narrow excavation water discharge method | |
| CN216475128U (en) | Building bottom plate drainage structure with temporary water tank in water collecting well | |
| CN105714771A (en) | Construction method for manual hole digging pile | |
| CN204435321U (en) | A kind of steam power station water intaking open channel | |
| CN209837072U (en) | Foundation pit dewatering system | |
| CN104947699A (en) | Deep foundation pit drainage structure | |
| CN110761308A (en) | Local foundation pit construction method | |
| CN220132951U (en) | Basement dewatering seepage-proofing leakage killing well | |
| CN109555141A (en) | A kind of forced-ventilated water system and construction method for super-sized foundation pit | |
| CN212052829U (en) | Basement bottom and groundwater all around draw row structure | |
| KR100693807B1 (en) | The construction method of basement drainage | |
| CN215165753U (en) | Toe board low reaches foundation ditch ponding positive pump drainage facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |