CN202247920U - Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit - Google Patents
Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit Download PDFInfo
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- CN202247920U CN202247920U CN 201120371294 CN201120371294U CN202247920U CN 202247920 U CN202247920 U CN 202247920U CN 201120371294 CN201120371294 CN 201120371294 CN 201120371294 U CN201120371294 U CN 201120371294U CN 202247920 U CN202247920 U CN 202247920U
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- collecting well
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- water
- foundation pit
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Abstract
The utility model discloses a construction structure for water drainage of a blind ditch and water collecting wells in a deep foundation pit. The construction structure comprises a blind ditch arranged at one side with low terrain in an excavated foundation pit, wherein the blind ditch is arranged parallel to the side wall of the foundation pit at the side with low terrain; a rubble layer, a fragment layer and color strip cloth are sequentially laid in the blind ditch from bottom to top; a plurality of water collecting well pits are excavated in the foundation pit; bricks are paved on the bottom walls of the water collecting well pits, and side walls of water collecting wells are built in the water collecting well pits to form the water collecting wells; gravel is filled between the outer side wall of each water collecting well and the inner side wall of each water collecting well pit; a round sleeve is installed at the closing part of the top of each water collecting well; the blind ditch is communicated with each water collecting well through a guide pipe which is obliquely arranged; and a cushion layer, a waterproof layer and a waterproof protective layer are sequentially laid between the top wall of the water collecting well pits and the top face of the color strip cloth from bottom to top. The structure disclosed by the utility model can effectively solve the problem that the north terrain is high and the south terrain is low, so that the north surface water and underground water flow into the foundation pit.
Description
Technical field
The utility model relates to a kind of deep foundation ditch internal drainage job practices, relates in particular to the job practices of interior french drain of a kind of deep foundation ditch and collecting well draining.
Background technology
Along with the development of urban construction, highrise building, civil air defense constructions and installations and subway engineering emerge in multitude.The success or not of pattern foundation pit supporting structure directly influences the benefit and the success or failure of engineering construction.Underground water is as the tax dis environment factor of geotechnical body, and is disadvantageous often to the influence of base pit engineering.For the higher area of groundwater table, need large-area provisional precipitation and sealing in the excavation of foundation pit, if improper, be prone to cause accidents such as foundation ditch caves in, surface settlement to groundwater treatment in the foundation ditch.In the shoveling and basement construction of deep-foundation pit engineering, guarantee the construction under " doing " state.For addressing this problem, the way of taking usually has: sealing, precipitation and draining.Sealing adopts the form of water-stop curtain, and purpose is the infiltration that stops the foundation ditch secondary water.Precipitation is to make groundwater table remain on the foundation ditch bottom surface below 0.5～1.0 meter, the convenient shoveling and the dried operation of base plate. precipitation method has light well point, eductor well point, electric osmose well point, pipe well well point or the like; Draining is that surface water and underground water in the foundation ditch scope are got rid of, the bright draining of mode of catchwater-collecting well commonly used.Job practices to catchwater-collecting well is a lot.But low for high south, physical features north at present, north side surface water, underground water all flow into foundation ditch, and in addition because of prestress anchorage cable penetrates water-stop curtain, north side underground water flows into foundation ditch through free section.And fender post limit, on-the-spot north side and base plate brick fetal membrane limit clear distance are too little, can't guarantee the requirement of the bright row's ditch water discharge of foundation ditch here.
Learn the patent of having authorized through retrieval:
1 application number is that the Chinese patent of CN200820062278.1 discloses " recoverable Churn drill steel pipe precipitation well "; Wherein recoverable Churn drill steel pipe precipitation well casing body is made up of the standard steel pipeline section; Face the tube wall end mutually through welding between the standard steel pipeline section and connect, the quantity of standard steel pipeline section is 2 to 4, and recoverable Churn drill steel pipe precipitation well is vertically set on underground; The aboveground end of precipitation, precipitation downhole end are opened, and the precipitation downhole end is provided with submersible pump.This patent is disclosed to be the structure of recoverable Churn drill steel pipe precipitation well, and this patent is disclosed to be the job practices of interior french drain of a kind of deep foundation ditch and collecting well draining, also different with described french drain of this patent and collecting well structure.
2 application numbers are that the Chinese patent of CN201020666433.8 discloses " the anti-water collecting well cover of making bold ", include circle body, flap valve pin, baffle plate and flap valve weight body and form.Circle body is a main component, and the profile of circle body can be set according to the form of the well head that catchments, so can be square, also can be circular.The two ends of flap valve pin penetrate and are fixed on the inwall of circle body, and the upper end of baffle plate is provided with and penetrates the through hole that the flap valve pin is used, and the through hole of baffle plate upper end penetrates and hangs on the flap valve pin.It is skewed that baffle plate is, and the upper end trailing flank of baffle plate is connected with flap valve weight body.Under the sagging power effect of flap valve weight body, lift in the meeting automatically of the lower end of baffle plate, and contact with the flap valve weight body of front.According to this, under the action of gravity of flap valve weight body, baffle plate will match with flap valve weight body, and the well head that will catchment sealing prevents to emit on the smell.As meet rainwater and press down, downforce will overcome the sagging gravity of flap valve weight body, and the lower ends downward of baffle plate is moved, and has also just opened baffle plate, realizes letting out under the rainwater.
3 application numbers are that the Chinese patent of CN201110002790.3 discloses " water discharge method and device fall in deep foundation ditch french drain collecting well "; This method is concentrated the french drain pipe that flows into the basement bottom board bottom with the ponding in the outer wall of basement outside through catchwater; Ponding in the basement is concentrated through spilled water hole and is flowed into base plate bottom french drain pipe; The ignorant of the economics sewer pipe causes interim collecting well then, uses water pump to efflux.
4 application numbers are that the Chinese patent of CN201020645284.7 discloses " a kind of collecting well system that is used for foundation ditch retaining wall drainage construction process "; This collecting well system comprises the collecting well body; Also comprise being arranged on the intrinsic at least one downcomer of collecting well, and the suction water pipe that an end is arranged in the downcomer, the other end links to each other with water pump; The sidewall of said downcomer is provided with the precipitation hole, and downcomer around be provided with the drainage layer.
5 application numbers are that the Chinese patent of CN201020252346.8 discloses " two collecting well basement drain system "; This system comprises the collecting well II that is arranged near the collecting well I of basement and is provided with near the municipal drainage pipe network; The bottom of the bottom of collecting well I and collecting well II was communicated with through communicating pipe; The well wall of collecting well II is provided with overfall gap; Said pipeline is inverted U-shaped pvc pipe, and an end of pvc pipe is arranged at the bottom of collecting well I, and the linker structure is formed on the bottom that the other end is arranged at collecting well II.
The drainage and construction method of above-mentioned 2-5 item patent all has a series of advantage, but it is low not to be suitable for high south, physical features north, and north side surface water, underground water all flow into foundation ditch, and in addition because of prestress anchorage cable penetrates water-stop curtain, north side underground water flows into foundation ditch through free section.And fender post limit, on-the-spot north side and base plate brick fetal membrane limit clear distance are too little, can't guarantee the requirement of the bright row's ditch water discharge of foundation ditch.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, provides a kind of and can effectively guarantee the interior french drain of a kind of deep foundation ditch of drainage of foundation pit requirement and the constructing structure of collecting well draining.
The constructing structure of french drain and collecting well draining in a kind of deep foundation ditch of the utility model; It comprises a french drain that is arranged on the side that physical features is low in the foundation ditch that digs; The foundation pit side-wall of described french drain and physical features downside laterally arranges; In described french drain, be equipped with ragstone layer, debris layer and colour bar cloth from bottom to up successively; In foundation ditch, dig the parallel and collecting well well that be provided with at interval of a plurality of and described french drain; Paved brick on the diapire of each described collecting well well and in the collecting well well brick work have arc collecting well sidewall to form collecting well; Between the lateral wall of described collecting well and collecting well well inside wall, completely be filled with rubble, circular sleeve be installed, the steel plate water-stopping ring is arranged in the weld all around of the border of described circular sleeve in the closing in position on the top of described collecting well; Be symmetrically welded with at least four reinforcing bars in the bottom surface of described steel plate water-stopping ring; Described at least four reinforced bar support are arranged on the described collecting well roof, through the setting that is connected of a conduit that is obliquely installed, between colour bar cloth part end face, are equipped with bed course, waterproofing course and fish tail and waterproof layer at described a plurality of collecting well well roofs from bottom to up successively between described french drain and each collecting well.
Adopt that the utility model infrastructure cost is low, globality, applicability be strong, good stability, reliability is high; It is low effectively to solve high south, physical features north; North side surface water, underground water all flow into the problem of foundation ditch; And can solve because of prestress anchorage cable and penetrate water-stop curtain; It is too little that north side underground water flows into foundation ditch and fender post limit, on-the-spot north side and base plate brick fetal membrane limit clear distance through free section, can't guarantee the problem of the bright row's ditch water discharge of foundation ditch requirement.
Description of drawings
Fig. 1 is the structure vertical view of interior french drain of a kind of deep foundation ditch of the utility model and collecting well drainage construction structure;
Fig. 2 is the longitudinal sectional drawing of structure shown in Figure 1;
Fig. 3 is the structural representation of bottom board on the basis of structure shown in Figure 2;
Fig. 4 is the sleeve portion structural representation in the structure shown in Figure 2;
Fig. 5 is the vertical view of sleeve portion shown in Figure 4.
The specific embodiment
Below in conjunction with concrete embodiment, and, the utility model is done further explanation with reference to accompanying drawing:
The constructing structure of french drain and collecting well draining in a kind of deep foundation ditch as shown in the figure; It comprises a french drain 1 that is arranged on the side that physical features is low in the foundation ditch that digs; Described french drain 1 laterally arranges with the foundation pit side-wall of physical features downside; In described french drain, be equipped with ragstone layer 1-3, debris layer 1-2 and colour bar cloth 1-1 from bottom to up successively; In foundation ditch, dig the parallel and collecting well well 4 that be provided with at interval of a plurality of and described french drain; Paved brick on the diapire of each described collecting well well and in the collecting well well brick work have arc collecting well sidewall 4-1 to form collecting well; Between the lateral wall of described collecting well and collecting well well inside wall, completely be filled with rubble 6, circular sleeve 13 be installed, steel plate water-stopping ring 10 is arranged in the weld all around of the border of described circular sleeve in the closing in position on the top of described collecting well; Be symmetrically welded with at least four reinforcing bars 12 in the bottom surface of described steel plate water-stopping ring; Described at least four reinforced bar support are arranged on the described collecting well roof, through the setting that is connected of a conduit that is obliquely installed 2, between colour bar cloth part end face, are equipped with bed course 7, waterproofing course 8 and fish tail and waterproof layer 9 at described a plurality of collecting well well roofs from bottom to up successively between described french drain 1 and each collecting well 4.3 is the fender post of foundation ditch among the figure.
The method of operating of this structure is following: water pump 11 is put into each collecting well, and the observing water level situation is drawn water; Withdraw from the water pump in the collecting well after completion is drawn water, in described collecting well, fill concrete then, again with 13 usefulness round plates, the 14 full weld shutoff of the sleeve pipe on the collecting well and on described fish tail and waterproof layer colligation base plate reinforcing bar, bottom board concrete 5.
Claims (1)
1. the constructing structure of french drain and collecting well draining in the deep foundation ditch; It is characterized in that: it comprises a french drain that is arranged on the side that physical features is low in the foundation ditch that digs; The foundation pit side-wall of described french drain and physical features downside laterally arranges; In described french drain, be equipped with ragstone layer, debris layer and colour bar cloth from bottom to up successively; In foundation ditch, dig the parallel and collecting well well that be provided with at interval of a plurality of and described french drain; Paved brick on the diapire of each described collecting well well and in the collecting well well brick work have arc collecting well sidewall to form collecting well; Between the lateral wall of described collecting well and collecting well well inside wall, completely be filled with rubble, circular sleeve be installed, the steel plate water-stopping ring is arranged in the weld all around of the border of described circular sleeve in the closing in position on the top of described collecting well; Be symmetrically welded with at least four reinforcing bars in the bottom surface of described steel plate water-stopping ring; Described at least four reinforced bar support are arranged on the described collecting well roof, through the setting that is connected of a conduit that is obliquely installed, between colour bar cloth part end face, are equipped with bed course, waterproofing course and fish tail and waterproof layer at described a plurality of collecting well well roofs from bottom to up successively between described french drain and each collecting well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120371294 CN202247920U (en) | 2011-09-27 | 2011-09-27 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120371294 CN202247920U (en) | 2011-09-27 | 2011-09-27 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202247920U true CN202247920U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120371294 Expired - Fee Related CN202247920U (en) | 2011-09-27 | 2011-09-27 | Construction structure for water drainage of blind ditch and water collecting wells in deep foundation pit |
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| CN (1) | CN202247920U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888851A (en) * | 2012-09-29 | 2013-01-23 | 中国华冶科工集团有限公司 | Deep water level plash and construction method thereof |
| CN103147445A (en) * | 2013-03-26 | 2013-06-12 | 中交第四航务工程勘察设计院有限公司 | Novel open-sea deep foundation pit support structure |
| CN104179189A (en) * | 2014-08-29 | 2014-12-03 | 上海建工七建集团有限公司 | Dewatering and drainage structure of foundation pit deep drop area and construction method thereof |
| CN104196046A (en) * | 2014-08-30 | 2014-12-10 | 上海联境建筑工程设计有限公司 | Water resisting and draining system for lowering underground anti-floating water level |
| CN105625448A (en) * | 2014-10-31 | 2016-06-01 | 龚展宇 | Underground water drainage method and device for underground building |
| CN106638641A (en) * | 2016-12-16 | 2017-05-10 | 中建四局第建筑工程有限公司 | Water well structure for foundation pit dewatering and construction method thereof |
-
2011
- 2011-09-27 CN CN 201120371294 patent/CN202247920U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888851A (en) * | 2012-09-29 | 2013-01-23 | 中国华冶科工集团有限公司 | Deep water level plash and construction method thereof |
| CN103147445A (en) * | 2013-03-26 | 2013-06-12 | 中交第四航务工程勘察设计院有限公司 | Novel open-sea deep foundation pit support structure |
| CN104179189A (en) * | 2014-08-29 | 2014-12-03 | 上海建工七建集团有限公司 | Dewatering and drainage structure of foundation pit deep drop area and construction method thereof |
| CN104196046A (en) * | 2014-08-30 | 2014-12-10 | 上海联境建筑工程设计有限公司 | Water resisting and draining system for lowering underground anti-floating water level |
| CN105625448A (en) * | 2014-10-31 | 2016-06-01 | 龚展宇 | Underground water drainage method and device for underground building |
| CN106638641A (en) * | 2016-12-16 | 2017-05-10 | 中建四局第建筑工程有限公司 | Water well structure for foundation pit dewatering and construction method thereof |
| CN106638641B (en) * | 2016-12-16 | 2018-11-09 | 中建四局第一建筑工程有限公司 | Base pit dewatering well structure and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150927 |
|
| EXPY | Termination of patent right or utility model |