CN204491644U - A kind of drainage of foundation pit system - Google Patents
A kind of drainage of foundation pit system Download PDFInfo
- Publication number
- CN204491644U CN204491644U CN201520055956.1U CN201520055956U CN204491644U CN 204491644 U CN204491644 U CN 204491644U CN 201520055956 U CN201520055956 U CN 201520055956U CN 204491644 U CN204491644 U CN 204491644U
- Authority
- CN
- China
- Prior art keywords
- dewatering well
- drainage
- sump
- soakaway
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000004568 cement Substances 0.000 claims abstract description 15
- 238000001556 precipitation Methods 0.000 claims abstract description 14
- 239000004575 stone Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000004078 waterproofing Methods 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 27
- 230000000295 complement effect Effects 0.000 abstract description 10
- 239000002689 soil Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 238000009435 building construction Methods 0.000 description 3
- 238000012279 drainage procedure Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Sewage (AREA)
Abstract
The utility model relates to a kind of drainage of foundation pit system, belongs to architecture construction technical field of drainage.A kind of drainage of foundation pit system, it comprises: the first dewatering well; Soakaway pit, described soakaway pit is around the upper end borehole wall of described first dewatering well; Second dewatering well; Sump, described sump is made up of cement mud-jack layer; Described sump is around the upper end borehole wall of described second dewatering well; The bottom position of described sump is lower than the bottom position of described soakaway pit; Gutter, described gutter is made up of cement mud-jack layer; Described gutter is communicated with the bottom of soakaway pit and the bottom of sump; Water pump, described water pump is arranged in described second dewatering well.Utilize drainage of foundation pit system of the present utility model not need when precipitation leakage is husky the dewatering well that complement is new, save construction cost.Also solve precipitation leakage husky and cannot can affect the difficult problem of sole plate construction, construction speed of delaying during complement dewatering well simultaneously.
Description
Technical field
The utility model belongs to architecture construction technical field of drainage, particularly relates to a kind of drainage of foundation pit system, for be drained into by the water leaked in husky dewatering well in effective drop well and to discharge.
Background technology
Foundation ditch is by the heatable adobe sleeping platform that substrate absolute altitude and basic plane size are excavated in basic engineering position.According to geology hydrological data, in conjunction with on-the-spot nearby buildings situation, excavation plan should be determined, and performs water-proof drainage work before excavation.In foundation pit dewatering construction, when particularly adopting water-stop curtain to add the sealing drainage pattern of dewatering well (drainage well) in hole, drainage well in the hole that foundation ditch inner bottom part meeting arrangement pitch does not wait, drainage well is mainly used in draining mine water, and makes water level decreasing to the absolute altitude of the following design code of substrate.
In use dewatering well drainage procedure, because the construction of periphery or other reasons can cause a certain position of dewatering well to occur leaking husky.If leak sofa raw time continue to utilize water pump to carry out drawing water the sandy soil around dewatering well can be made to enter in well with water at the husky place of leakage, cause leaking husky place soil layer time serious and cave in.Therefore cannot proceed draining when precipitation leakage is husky, need complement dewatering well again.
In actual building construction process, the design of some building foundation is comparatively complicated, and dewatering well is settled and can only be arranged in advance according to place situation, and the backward shift that dewatering well is accomplished fluently or again complement dewatering well are comparatively difficult.If indivedual precipitation leakage sand cannot proper drainage, will affect that sole plate is constructed, construction speed of delaying.
Utility model content
The utility model provides a kind of drainage of foundation pit system, technical problem to be solved be leak husky dewatering well cannot proceed draining and cannot complement dewatering well time, affect sole plate construct, construction speed of delaying.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of drainage of foundation pit system, and it comprises:
First dewatering well;
Soakaway pit, described soakaway pit is around the upper end borehole wall of described first dewatering well;
Second dewatering well;
Sump, described sump is made up of cement mud-jack layer; Described sump is around the upper end borehole wall of described second dewatering well; The bottom position of described sump is lower than the bottom position of described soakaway pit;
Gutter, described gutter is made up of cement mud-jack layer; Described gutter is communicated with the bottom of soakaway pit and the bottom of sump;
Water pump, described water pump is arranged in described second dewatering well.
Drainage of foundation pit system as above, further, described first dewatering well and/or described second dewatering well are drainage well.
Drainage of foundation pit system as above, further, the degree of depth of soakaway pit is greater than designing precipitation water level elevation.
Drainage of foundation pit system as above, further, described gutter has the gradient of 1.5% ~ 2.5%.
Drainage of foundation pit system as above, further, the large 300 ~ 800mm of the radius of the first dewatering well described in the radius ratio of described soakaway pit.
Drainage of foundation pit system as above, further, the distance of described first dewatering well and described second dewatering well is 4 ~ 15m.
Drainage of foundation pit system as above, further, drainage system also comprises:
Stone layer, the stone of described stone layer is filled in soakaway pit, sump and gutter;
Waterproofing course, described waterproofing course covers stone sub-layer surface.
Drainage of foundation pit system as above, further, described waterproofing course is the Polypropylence Sheet (PE) of the Polypropylence Sheet (PVC) of polyvinyl chloride material, the Polypropylence Sheet (TPU) of polyurethane material, the Polypropylence Sheet (PP) of polypropylene material or polyethylene material.
The beneficial effects of the utility model are:
When the first dewatering well occurs that leaking sand must stop using, around the first dewatering well, the water of soil layer enters soakaway pit by osmosis; Then current enter into sump by gutter.Because gutter and sump are formed by cement mud-jack layer, water can not penetrate in the soil layer of neighbouring position, and converges in sump.Water in sump is penetrated in the second dewatering well by the second dewatering well borehole wall, and then is discharged by water pump.
Utilize drainage of foundation pit system of the present utility model not need when precipitation leakage is husky the dewatering well that complement is new, save construction cost.Also solve precipitation leakage husky and cannot can affect the difficult problem of sole plate construction, construction speed of delaying during complement dewatering well simultaneously.
Accompanying drawing explanation
Fig. 1 is that prior art leaks husky dewatering well schematic diagram;
A kind of drainage of foundation pit system schematic that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the schematic top plan view of Fig. 2.
In accompanying drawing, the list of parts representated by each label is as follows:
1, the first dewatering well, the 2, second dewatering well, 3, soakaway pit, 4, sump, 5, gutter, 6, water pump, 7, leak husky position, 8, soil layer.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, for the one of prior art leaks husky dewatering well schematic diagram.At leakage sofa before death, the water permeation in soil layer 8, by the borehole wall of dewatering well, enters into dewatering well inside.Water in well is discharged by the water pump 6 of dewatering well inside.
But in use dewatering well drainage procedure, because the construction of periphery or dewatering well construction quality problem may cause a certain position of dewatering well to occur leaking husky.The sandy soil of the soil layer 8 around dewatering well being made to enter in well with water through leaking husky position 7 if proceed pumping for water pump when leaking sofa life, if the long enough of time remaining, then can cause leaking husky place soil layer and caving in, causing building accident.
In actual building construction process, the design of some building foundation is comparatively complicated, and dewatering well is settled and can only be arranged in advance according to place situation, and the backward shift that dewatering well is accomplished fluently or again complement dewatering well are comparatively difficult.If indivedual precipitation leakage sand cannot proper drainage, will affect that sole plate is constructed, construction speed of delaying.
The utility model provides a kind of drainage of foundation pit system, when needing the husky dewatering well of solution leakage cannot proceed draining, affects the problem of sole plate construction, construction speed of delaying.
Be the drainage of foundation pit system that a kind of embodiment of the utility model provides as shown in Figures 2 and 3, it comprises:
First dewatering well 1;
Soakaway pit 3, described soakaway pit 3 is around the upper end borehole wall of described first dewatering well; As shown in Figure 3, the large 300 ~ 800mm of radius of the first dewatering well described in the radius ratio of described soakaway pit.Such size design can ensure that the water near the first dewatering well penetrates into soakaway pit in time.But those skilled in the art, according to Practical Project condition of construction, take the soakaway pit of other size ranges also in protection domain of the present utility model.
Second dewatering well 2;
Sump 4, described sump 4 is made up of cement mud-jack layer; Described sump 4 is around the upper end borehole wall of described second dewatering well; The bottom position of described sump is lower than the bottom position of described soakaway pit; Cement mud-jack layer utilizes the mode of cement paste mud jacking to carry out the soil body and closes and formed.
Gutter 5, described gutter 5 is made up of cement mud-jack layer; Described gutter 5 is communicated with the bottom of soakaway pit and the bottom of sump;
Water pump 6, described water pump 6 is arranged in described second dewatering well 2.
In use first dewatering well drainage procedure, because the construction of periphery or dewatering well construction quality problem may cause a certain position of dewatering well to occur leaking husky, now the first dewatering well is for leaking husky dewatering well, must stop using.After stopping using, around the first dewatering well, the water of soil layer enters soakaway pit by osmosis; Then current enter into sump by gutter.Because gutter and sump are formed by cement mud-jack layer, water can not penetrate in the soil layer of neighbouring position, and converges in sump.Water in sump is penetrated in the second dewatering well by the second dewatering well borehole wall, and then is discharged by water pump.
Utilize drainage of foundation pit system of the present utility model not need when precipitation leakage is husky the dewatering well that complement is new, save construction cost.Also solve precipitation leakage husky and cannot can affect the difficult problem of sole plate construction, construction speed of delaying during complement dewatering well simultaneously.
In the drainage of foundation pit system of the utility model above-described embodiment, described first dewatering well and/or described second dewatering well are drainage well.
In the drainage of foundation pit system of the utility model above-described embodiment, in order to ensure near the first dewatering well that water level is in or lower than designing precipitation water level elevation.Improve further above-described embodiment, the degree of depth of described soakaway pit is greater than designing precipitation water level elevation.Such improvement, is made the water of soil layer near the first dewatering well enter into the bottom of soakaway pit by osmosis, and then is discharged by gutter, to ensure that near the first dewatering well that water level is in or lower than designing precipitation water level elevation.
In the drainage of foundation pit system of utility model above-described embodiment, flow into sump more smoothly, fast to make the water in soakaway pit.Improve further above-described embodiment, described gutter has the gradient of 1.5% ~ 2.5%, and in drainage of foundation pit system as shown in Figure 1, gutter has the gradient of 2%.
In a kind of embodiment of drainage of foundation pit system, the distance of described first dewatering well and described second dewatering well is 4 ~ 15m.In embody rule process of the present utility model, consider construction cost, the distance between the first dewatering well and the second dewatering well should more than 15m.
Before the construction of bottom plates of building construction process, still need as crossed to continue to discharge the underground water leaked in husky dewatering well, above-described embodiment is improved further.The another kind of drainage of foundation pit system that the utility model provides, it comprises:
First dewatering well;
Soakaway pit, described soakaway pit is around the upper end borehole wall of described first dewatering well;
Second dewatering well;
Sump, described sump is made up of cement mud-jack layer; Described sump is around the upper end borehole wall of described second dewatering well; The bottom position of described sump is lower than the bottom position of described soakaway pit;
Gutter, described gutter is made up of cement mud-jack layer; Described gutter is communicated with the bottom of soakaway pit and the bottom of sump;
Water pump, described water pump is arranged in described second dewatering well;
Stone layer, the stone of described stone layer is filled in soakaway pit, sump and gutter;
Waterproofing course, described waterproofing course covers stone sub-layer surface.Preferably, described waterproofing course is the Polypropylence Sheet (PE) of the Polypropylence Sheet (PVC) of polyvinyl chloride material, the Polypropylence Sheet (TPU) of polyurethane material, the Polypropylence Sheet (PP) of polypropylene material or polyethylene material.
In the drainage of foundation pit system of above-described embodiment, the underground water in the first dewatering well still can penetrate between the stone gap of soakaway pit, and flow into sump by the stone gap in gutter.Because gutter and sump are formed by cement mud-jack layer, water can not penetrate in the soil layer of neighbouring position, and converges in sump.Owing to installing water pump in the second dewatering well, the water level of the second dewatering well is reduced to below bottom sump by water pump, the water in sump is penetrated in the second dewatering well by the second dewatering well borehole wall, and then is discharged by water pump.Construction of bottom plates can carry out with the discharge of leaking underground water in husky dewatering well simultaneously, does not affect construction speed.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a drainage of foundation pit system, is characterized in that, comprising:
First dewatering well;
Soakaway pit, described soakaway pit is around the upper end borehole wall of described first dewatering well;
Second dewatering well;
Sump, described sump is made up of cement mud-jack layer; Described sump is around the upper end borehole wall of described second dewatering well; The bottom position of described sump is lower than the bottom position of described soakaway pit;
Gutter, described gutter is made up of cement mud-jack layer; Described gutter is communicated with the bottom of soakaway pit and the bottom of sump;
Water pump, described water pump is arranged in described second dewatering well.
2. drainage of foundation pit system according to claim 1, is characterized in that, described first dewatering well and/or described second dewatering well are drainage well.
3. the drainage of foundation pit system according to any one of claim 1-2, is characterized in that, the degree of depth of soakaway pit is greater than designing precipitation water level elevation.
4. the drainage of foundation pit system according to any one of claim 1-2, is characterized in that, described gutter has the gradient of 1.5% ~ 2.5%.
5. drainage of foundation pit system according to claim 1, is characterized in that, the large 300 ~ 800mm of the radius of the first dewatering well described in the radius ratio of described soakaway pit.
6. drainage of foundation pit system according to claim 1, is characterized in that, the distance of described first dewatering well and described second dewatering well is 4 ~ 15m.
7. drainage of foundation pit system according to claim 1, is characterized in that, also comprise:
Stone layer, the stone of described stone layer is filled in soakaway pit, sump and gutter;
Waterproofing course, described waterproofing course covers stone sub-layer surface.
8. drainage of foundation pit system according to claim 7, is characterized in that, described waterproofing course is the Polypropylence Sheet of the Polypropylence Sheet of polyvinyl chloride material, the Polypropylence Sheet of polyurethane material, the Polypropylence Sheet of polypropylene material or polyethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055956.1U CN204491644U (en) | 2015-01-27 | 2015-01-27 | A kind of drainage of foundation pit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055956.1U CN204491644U (en) | 2015-01-27 | 2015-01-27 | A kind of drainage of foundation pit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204491644U true CN204491644U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520055956.1U Expired - Fee Related CN204491644U (en) | 2015-01-27 | 2015-01-27 | A kind of drainage of foundation pit system |
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| Country | Link |
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| CN (1) | CN204491644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064384A (en) * | 2015-09-07 | 2015-11-18 | 山西省工业设备安装有限公司 | Vacuum tube well precipitation system under special geological conditions |
-
2015
- 2015-01-27 CN CN201520055956.1U patent/CN204491644U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064384A (en) * | 2015-09-07 | 2015-11-18 | 山西省工业设备安装有限公司 | Vacuum tube well precipitation system under special geological conditions |
| CN105064384B (en) * | 2015-09-07 | 2019-09-27 | 山西省工业设备安装集团有限公司 | Vacuum tube well precipitation system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 |