CN108978691A - Precipitation system in foundation pit - Google Patents
Precipitation system in foundation pit Download PDFInfo
- Publication number
- CN108978691A CN108978691A CN201810938916.XA CN201810938916A CN108978691A CN 108978691 A CN108978691 A CN 108978691A CN 201810938916 A CN201810938916 A CN 201810938916A CN 108978691 A CN108978691 A CN 108978691A
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- CN
- China
- Prior art keywords
- steel pipe
- hole
- pit
- foundation pit
- artificial
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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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
Abstract
The present invention relates to precipitation systems in technical field of building construction more particularly to a kind of foundation pit.Precipitation system includes: artificial pit-hole in the foundation pit；Head plate is set to the bottom of the artificial pit-hole；Steel pipe is vertically installed in artificial pit-hole, and the length of the steel pipe is higher than the depth of artificial pit-hole, and one end is fixedly connected with the head plate；Immersible pump is set in the steel pipe；Drainpipe, one end are located in the steel pipe, and the other end is located at ground；Mung bean sand bed；Wherein, the steel pipe is divided into upper and lower part, and the lower part is provided with several holes, and the lower part of the steel pipe is provided around filter screen.Precipitation system is not take up the duration in foundation pit disclosed by the invention, influences on Planning of construction periods smaller；Easy construction, it is easy to operate, construction personnel is required low；And large scale equipment is not generated, and material needs are few, and cost of construction materials is low, and it is small on foundation pit influence, it will not be raw to ground local products compared with large disturbances, the reduction of energy continuous and effective and the water being discharged in foundation pit.
Description
Technical field
The present invention relates to precipitation systems in technical field of building construction more particularly to a kind of foundation pit.
Background technique
At present in foundation construction, since working-day claims or geological condition are reconnoitred the factors such as unknown and restricted, cause in foundation pit
After the completion of excavation, situations such as bottom of foundation ditch flows into foundation pit there are underground water or surface water, bottom of foundation ditch water level is excessively high subsequent
Waterproof and reinforcing bar binding can not construct in construction.According to normal condition, foundation pit internal water accumulation is removed by the way of the bright row that catchments.But
Foundation pit is smaller in a practical situation or there are in Groundwater infiltration foundation pit, can not accomplish to excavate gutter, Huo Zhekai in foundation pit
Water flow flows into always the phenomenon that gutter in drainage trenching foundation pit, can have an impact to subsequent construction.
Summary of the invention
Technical problem solved by the invention is to provide precipitation system in a kind of foundation pit, to reduce and be discharged in foundation pit
Water, solve the problems, such as the excessively high waterproof in subsequent construction of bottom of foundation ditch water level and reinforcing bar binding can not construct.
Technical problem solved by the invention is realized using following technical scheme:
One aspect of the present invention discloses precipitation system in a kind of foundation pit, comprising:
Artificial pit-hole；
Head plate is set to the bottom of the artificial pit-hole；
Steel pipe is vertically installed in artificial pit-hole, and the length of the steel pipe is higher than the depth of artificial pit-hole, and one end with
The head plate is fixedly connected；
Immersible pump is set in the steel pipe；
Drainpipe, one end are located in the steel pipe, and the other end is located at ground；
Mung bean sand bed；
Wherein, the steel pipe is divided into upper and lower part, and the lower part is provided with several holes, the lower part of the steel pipe
It is provided around filter screen.
Preferably, described hole is evenly arranged.
Preferably, the lower part of the steel pipe is provided around two layers of filter screen.
The second aspect of the present invention discloses a kind of method for carrying out precipitation processing using precipitation system in above-mentioned foundation pit,
The following steps are included:
S1: an artificial pit-hole is dug inside the foundation pit excavated；
S2: preparing steel pipe, sets hole in the lower part of the steel pipe, and filter screen is arranged in the hole periphery winding of steel pipe, under
Weld head plate in portion；
S3: steel pipe is embedded in the pit-hole dug, and surrounding fills and presents green bean paste；
S4: immersible pump is placed in the steel duct；
S5: opening immersible pump, which is persistently drawn water, guarantees level of ground water height.
Preferably, in S5, height of water level 400-500mm below foundation pit work surface is kept.
Preferably, in S2, the length of the steel pipe is 1400-1600mm.
Preferably, in S2, the diameter of described hole is 12mm.
Preferably, the immersible pump is the vertical immersible pump that diameter is 100mm.
Preferably, in S2, the position below steel pipe 1m sets hole.
Third aspect of the present invention discloses above-mentioned method in the application of construction technical field.
Foregoing invention is with the following advantages or beneficial effects:
Precipitation system is not take up the duration in foundation pit disclosed by the invention, influences on Planning of construction periods smaller；Easy construction, operation
Simply, construction personnel is required low；And large scale equipment is not generated, material needs less, and cost of construction materials is low, influences on foundation pit
It is small, it will not be raw to ground local products compared with large disturbances, the reduction of energy continuous and effective and the water being discharged in foundation pit.Utilize precipitation in the foundation pit
The method and step that system carries out precipitation processing is few, simple to operation.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System.
Fig. 1 is foundation pit schematic diagram；
Fig. 2 is steel pipe schematic diagram；
Fig. 3 is strainer schematic diagram；
Fig. 4 is immersible pump schematic diagram；
Fig. 5 is artificial pit-hole schematic diagram；
Fig. 6 is penstock installation schematic diagram；
Fig. 7 is the schematic diagram that draws water；
Fig. 8 is subsequent construction schematic diagram；
Fig. 9 is tube sealing schematic diagram；
Figure 10 is concreting schematic diagram；
In figure:
The artificial pit-hole of 1-, 2- steel pipe, 3- immersible pump, 4- mung bean sand bed, 5- drainpipe, 6- protective layer, 7- waterproof roll；
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments be only used for the present invention without
For limiting the scope of the invention.
Embodiment 1
As shown in figs 1 to 6, present embodiment discloses precipitation systems in a kind of foundation pit, specifically, precipitation system in the foundation pit
System includes:
Artificial pit-hole 1；
Head plate is set to the bottom of the artificial pit-hole；
Steel pipe 2 is vertically installed in artificial pit-hole 1, and the length of the steel pipe 2 is higher than the depth of artificial pit-hole 1, and one
End is fixedly connected with the head plate；
Immersible pump 3 is set in the steel pipe 2；
Drainpipe 5, one end are located in the steel pipe 2, and the other end is located at ground；
Mung bean sand bed 4；
Wherein, the steel pipe 2 divides for upper and lower part, and the lower part is provided with several holes, the lower part of the steel pipe 2
Around being provided with filter screen.
Described hole is evenly arranged.
The lower part of the steel pipe 2 is provided around two layers of filter screen.
Wherein, mung bean sand bed can be crossed in drainage impurity and a fixed effect is played to soil.
Fig. 7 is that the base pit dewatering system is drawn water schematic diagram.
Precipitation system is not take up the duration in foundation pit disclosed in the present embodiment, influences on Planning of construction periods smaller；Easy construction, behaviour
Make simply, to require construction personnel low；And large scale equipment is not generated, material needs less, and cost of construction materials is low, influences on foundation pit
It is small, it will not be raw to ground local products compared with large disturbances, the reduction of energy continuous and effective and the water being discharged in foundation pit.
Embodiment 2
It is including following present embodiment discloses a kind of method for carrying out precipitation processing using precipitation system in above-mentioned foundation pit
Step:
S1: an artificial pit-hole is dug inside the foundation pit excavated；
S2: preparing steel pipe, sets hole in the lower part of the steel pipe, and filter screen is arranged in the hole periphery winding of steel pipe, under
Weld head plate in portion；
S3: steel pipe is embedded in the pit-hole dug, and surrounding fills and presents green bean paste；
S4: immersible pump is placed in the steel duct；
S5: opening immersible pump, which is persistently drawn water, guarantees level of ground water height.
Specifically, keeping height of water level 400-500mm below foundation pit work surface in S5.In S2, the steel pipe
Length is 1400-1600mm.In S2, the diameter of described hole is 12mm.The immersible pump is that diameter is the vertical latent of 100mm
Water pump.In S2, the position below steel pipe 1m sets hole.
After the completion of precipitation work, as Figure 8-Figure 10, subsequent construction process is as follows:
One, it is laid with underground waterproof coiled material, the steel pipe for exposing foundation pit face uses roofing board and tube coil of wire material way, by steel pipe packet
Firmly, and persistently it draws water and guarantees level of ground water height.After the completion of normal construction process and program construction, preparation pours coagulation
Soil.
Two, it before pouring, is poured into steel pipe same concrete (or dedicated grouting material), concrete is cut off after pouring into be exposed
Steel pipe, waterproof roll lap seal, the subsequent constructions such as protective layer.
Three, subsequent construction is normally carried out, casting concrete.
Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is simultaneously unlimited
It is formed on particular embodiments described above.To those skilled in the art, any couple of present invention carries out equivalent modifications and
Substitution is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by equal transformation and
Modification, all should be contained within the scope of the invention.
Claims (10)
1. precipitation system in a kind of foundation pit characterized by comprising
Artificial pit-hole；
Head plate is set to the bottom of the artificial pit-hole；
Steel pipe is vertically installed in artificial pit-hole, and the length of the steel pipe is higher than the depth of artificial pit-hole, and one end with it is described
Head plate is fixedly connected；
Immersible pump is set in the steel pipe；
Drainpipe, one end are located in the steel pipe, and the other end is located at ground；
Mung bean sand bed；
Wherein, the steel pipe is divided into upper and lower part, and the lower part is provided with several holes, the lower part winding of the steel pipe
It is equipped with filter screen.
2. precipitation system in foundation pit according to claim 1, which is characterized in that described hole is evenly arranged.
3. precipitation system in foundation pit according to claim 1, which is characterized in that the lower part of the steel pipe is provided around two
Layer filter screen.
4. a kind of method for carrying out precipitation processing using precipitation system in foundation pit described in claim 1-3 any one, special
Sign is, comprising the following steps:
S1: an artificial pit-hole is dug inside the foundation pit excavated；
S2: preparing steel pipe, sets hole, the hole periphery winding setting filter screen of steel pipe, lower part weldering in the lower part of the steel pipe
Connect head plate；
S3: steel pipe is embedded in the pit-hole dug, and surrounding fills and presents green bean paste；
S4: immersible pump is placed in the steel duct；
S5: opening immersible pump, which is persistently drawn water, guarantees level of ground water height.
5. according to the method described in claim 4, it is characterized in that, keeping height of water level below foundation pit work surface in S5
400-500mm。
6. according to the method described in claim 4, it is characterized in that, the length of the steel pipe is 1400-1600mm in S2.
7. according to the method described in claim 4, it is characterized in that, the diameter of described hole is 12mm in S2.
8. according to the method described in claim 4, it is characterized in that, the immersible pump is the vertical immersible pump that diameter is 100mm.
9. according to the method described in claim 4, it is characterized in that, the position below steel pipe 1m sets hole in S2.
10. the method according to any one of claim 4-9 is in the application of construction technical field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810938916.XA CN108978691A (en) | 2018-08-17 | 2018-08-17 | Precipitation system in foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810938916.XA CN108978691A (en) | 2018-08-17 | 2018-08-17 | Precipitation system in foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108978691A true CN108978691A (en) | 2018-12-11 |
Family
ID=64554183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810938916.XA Pending CN108978691A (en) | 2018-08-17 | 2018-08-17 | Precipitation system in foundation pit |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202577326U (en) * | 2012-02-14 | 2012-12-05 | 江苏江中集团有限公司 | Water lowering device for mine pit |
| CN204000909U (en) * | 2014-05-27 | 2014-12-10 | 江苏南通三建集团有限公司 | A kind of immersed tube Precipitation Structure |
| CN104452786A (en) * | 2014-11-14 | 2015-03-25 | 武汉一冶建筑安装工程有限责任公司 | Deep foundation pit elevator shaft sump dewatering construction method |
| CN106223351A (en) * | 2016-07-26 | 2016-12-14 | 中国二十二冶集团有限公司 | Self priming pump reduces local groundwater level construction method |
| CN205839777U (en) * | 2016-05-31 | 2016-12-28 | 中国一冶集团有限公司 | Well-points dewatering well filter structure |
| CN206581279U (en) * | 2017-03-13 | 2017-10-24 | 青岛建设集团有限公司 | A kind of foundation ditch pressure release type dewatering well and its plugging structure |
| CN206784412U (en) * | 2017-03-29 | 2017-12-22 | 南京南大岩土工程技术有限公司 | A kind of precipitation well construction |
-
2018
- 2018-08-17 CN CN201810938916.XA patent/CN108978691A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202577326U (en) * | 2012-02-14 | 2012-12-05 | 江苏江中集团有限公司 | Water lowering device for mine pit |
| CN204000909U (en) * | 2014-05-27 | 2014-12-10 | 江苏南通三建集团有限公司 | A kind of immersed tube Precipitation Structure |
| CN104452786A (en) * | 2014-11-14 | 2015-03-25 | 武汉一冶建筑安装工程有限责任公司 | Deep foundation pit elevator shaft sump dewatering construction method |
| CN205839777U (en) * | 2016-05-31 | 2016-12-28 | 中国一冶集团有限公司 | Well-points dewatering well filter structure |
| CN106223351A (en) * | 2016-07-26 | 2016-12-14 | 中国二十二冶集团有限公司 | Self priming pump reduces local groundwater level construction method |
| CN206581279U (en) * | 2017-03-13 | 2017-10-24 | 青岛建设集团有限公司 | A kind of foundation ditch pressure release type dewatering well and its plugging structure |
| CN206784412U (en) * | 2017-03-29 | 2017-12-22 | 南京南大岩土工程技术有限公司 | A kind of precipitation well construction |
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Application publication date: 20181211 |