CN112411588A - Water seepage prevention device for dewatering well and construction method - Google Patents
Water seepage prevention device for dewatering well and construction method Download PDFInfo
- Publication number
- CN112411588A CN112411588A CN202011246520.2A CN202011246520A CN112411588A CN 112411588 A CN112411588 A CN 112411588A CN 202011246520 A CN202011246520 A CN 202011246520A CN 112411588 A CN112411588 A CN 112411588A
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- China
- Prior art keywords
- water
- steel sleeve
- pipe
- steel
- steel plate
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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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 230000002265 prevention Effects 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 238000001556 precipitation Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a water seepage prevention device for a dewatering well, which comprises a dewatering pipe and a steel sleeve which are concentrically arranged, wherein a water stop steel plate is welded on the periphery of the steel sleeve, and the steel sleeve is arranged at the top end of the dewatering pipe and is embedded in a concrete structure together with the water stop steel plate. The steel sleeve is a round steel pipe, and the water stop steel plate is annular. The pipe diameter of the steel sleeve is slightly smaller than that of the downcomer. The invention keeps the precipitation well through the steel sleeve and the precipitation pipe together, and the steel sleeve and the water stop steel plate are pre-embedded in the concrete structure, so that the basement leakage caused by the water leakage of the outer wall of the precipitation pipe can be effectively prevented. The anti-seepage device of the dewatering well has the advantages of simple structure and repeated use; the construction method has high construction efficiency and is worth popularizing and utilizing.
Description
Technical Field
The invention relates to a water seepage prevention device for a dewatering well and a construction method, and belongs to the technical field of design and construction of dewatering wells.
Background
The dewatering well has the function of lowering the underground water level or draining the underground water. In the process of earth excavation, when a foundation pit with the bottom surface elevation lower than the underground water level is excavated, because the aquifer of the soil is cut off, the underground water can continuously infiltrate into the pit. If no precipitation measure is taken, water flowing into the pit is drained in time or the underground water level is reduced, so that the construction condition is deteriorated, and more seriously, the slope collapse and the foundation bearing capacity are reduced after the soil is soaked and softened by water. In the engineering, the underground dewatering well generally needs to be sealed after the construction of a basement structure is finished. When the basement bottom plate is constructed, the position of the downcomer needs to be reserved, and water stopping measures are arranged around the construction hole to prevent water leakage from the outer wall of the downcomer.
Disclosure of Invention
The invention aims to provide a water seepage prevention device for a precipitation well, which can effectively prevent the basement from leaking due to water leakage of the outer wall of a precipitation pipe.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a precipitation well prevention of seepage water installation, includes precipitation pipe and the steel casing pipe of concentric installation, the periphery welding of steel casing pipe has the stagnant water steel sheet, and the steel casing pipe setting is on the top of precipitation pipe and with the stagnant water steel sheet jointly pre-buried in concrete structure.
Further, the steel sleeve is a circular steel pipe, and the water stop steel plate is annular.
Further, the pipe diameter of steel casing pipe slightly is less than the pipe diameter of downcomer.
Further, the outer diameter of the water stop steel plate is larger than the pipe diameter of the downcomer.
The invention also provides a construction method of the anti-seepage device for the dewatering well, which comprises the following steps:
s1, selecting the pipe diameter of a steel sleeve according to the pipe diameter size of the downcomer, wherein the pipe diameter of the steel sleeve is slightly smaller than that of the downcomer;
s2, welding a water stop steel plate on the periphery of the steel sleeve;
s3, embedding the steel sleeve and the water stop steel plate in the concrete structure;
and S4, after the well sealing stage is achieved, the well sealing is carried out, the medium sand is poured to be slightly lower than the concrete structure, and then the micro-expansion concrete with the first grade is poured.
Compared with the prior art, the invention has the beneficial effects that:
the invention keeps the precipitation well through the steel sleeve and the precipitation pipe together, and the steel sleeve and the water stop steel plate are pre-embedded in the concrete structure, so that the basement leakage caused by the water leakage of the outer wall of the precipitation pipe can be effectively prevented. The anti-seepage device of the dewatering well has the advantages of simple structure and repeated use; the construction method has high construction efficiency and is worth popularizing and utilizing.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
FIG. 2 is a plan view showing the positional relationship among the downcomer, the steel casing and the water stop steel plate in FIG. 1.
In the figure: 1. a downcomer pipe; 2. steel casing; 3. a water stop steel plate; 4. a concrete structure.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. The objects, aspects and advantages of the present invention will become more apparent from the following description. It should be understood that the described embodiments are preferred embodiments of the invention, and not all embodiments.
Referring to fig. 1 and 2, the seepage-proofing device of the dewatering well comprises a dewatering pipe 1 and a steel sleeve 2 which are concentrically installed, a water-stopping steel plate 3 is welded on the periphery of the steel sleeve 2, and the steel sleeve 2 is arranged at the top end of the dewatering pipe 1 and is embedded in a concrete structure 4 together with the water-stopping steel plate 3. The steel sleeve 2 is a round steel pipe, and the water stop steel plate 3 is in a ring shape. The pipe diameter of the steel sleeve 2 is slightly smaller than that of the downcomer 1. The outer diameter of the water stop steel plate 3 can be made to be larger than the pipe diameter of the downcomer.
The invention also provides a construction method of the anti-seepage device for the dewatering well, which comprises the following operation steps:
1. the pipe diameter of the steel sleeve is selected according to the pipe diameter size of the precipitation pipe, and the steel sleeve with the pipe diameter slightly smaller than that of the precipitation pipe can be adopted;
2. welding a water stop steel plate on the periphery of the steel sleeve;
3. then embedding the steel sleeve and the water stop steel plate in the concrete structure;
4. and after the design allowable well sealing stage is reached, well sealing is carried out, the medium sand is poured to be slightly lower than the concrete structure, and then the micro-expansion concrete with the first grade is poured.
The invention keeps the precipitation well through the steel sleeve and the precipitation pipe together, and the steel sleeve and the water stop steel plate are embedded in the concrete structure, so that the basement leakage caused by the water leakage of the outer wall of the precipitation pipe can be effectively prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and it is obvious that any person skilled in the art can easily conceive of alternative or modified embodiments based on the above embodiments and these should be covered by the present invention.
Claims (5)
1. The utility model provides a precipitation well prevention of seepage water installation which characterized in that:
the water-stopping device comprises a water descending pipe and a steel sleeve which are concentrically installed, wherein a water-stopping steel plate is welded on the periphery of the steel sleeve, and the steel sleeve is arranged at the top end of the water descending pipe and is embedded in a concrete structure together with the water-stopping steel plate.
2. The impermeable device of dewatering well according to claim 1, characterized in that:
the steel sleeve is a round steel pipe, and the water stop steel plate is annular.
3. The seepage-proofing device of dewatering well according to claim 2, characterized in that:
the pipe diameter of the steel sleeve is slightly smaller than that of the downcomer.
4. The impermeable device of dewatering well according to claim 3, characterized in that:
the outer diameter of the water stop steel plate is larger than the pipe diameter of the downcomer.
5. A construction method of a water seepage prevention device of a dewatering well is characterized by comprising the following steps:
s1, selecting the pipe diameter of a steel sleeve according to the pipe diameter size of the downcomer, wherein the pipe diameter of the steel sleeve is slightly smaller than that of the downcomer;
s2, welding a water stop steel plate on the periphery of the steel sleeve;
s3, embedding the steel sleeve and the water stop steel plate in the concrete structure;
and S4, after the well sealing stage is achieved, the well sealing is carried out, the medium sand is poured to be slightly lower than the concrete structure, and then the micro-expansion concrete with the first grade is poured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011246520.2A CN112411588A (en) | 2020-11-10 | 2020-11-10 | Water seepage prevention device for dewatering well and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011246520.2A CN112411588A (en) | 2020-11-10 | 2020-11-10 | Water seepage prevention device for dewatering well and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112411588A true CN112411588A (en) | 2021-02-26 |
Family
ID=74782349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011246520.2A Pending CN112411588A (en) | 2020-11-10 | 2020-11-10 | Water seepage prevention device for dewatering well and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112411588A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007009564A (en) * | 2005-06-30 | 2007-01-18 | East Japan Railway Co | Water filling pipe structure of return underground water and condensate well structure |
| CN204199331U (en) * | 2014-11-05 | 2015-03-11 | 中建八局第三建设有限公司 | A kind of indoor dewatering well runs through basement bottom board leakage-resistant device |
| CN105951859A (en) * | 2016-05-31 | 2016-09-21 | 中国冶集团有限公司 | Treatment method of plugging water stop construction for foundation pit dewatering well to penetrate through concrete base plate of basement |
| CN206346209U (en) * | 2016-12-09 | 2017-07-21 | 中国一冶集团有限公司 | A kind of quick solution dewatering well piping plugging structure |
| CN110820781A (en) * | 2019-12-03 | 2020-02-21 | 上海宝冶集团有限公司 | Well plugging method for dewatering well |
| CN111501858A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Construction method for detecting leakage by using foundation pit bottom plate dewatering well plugging device |
-
2020
- 2020-11-10 CN CN202011246520.2A patent/CN112411588A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007009564A (en) * | 2005-06-30 | 2007-01-18 | East Japan Railway Co | Water filling pipe structure of return underground water and condensate well structure |
| CN204199331U (en) * | 2014-11-05 | 2015-03-11 | 中建八局第三建设有限公司 | A kind of indoor dewatering well runs through basement bottom board leakage-resistant device |
| CN105951859A (en) * | 2016-05-31 | 2016-09-21 | 中国冶集团有限公司 | Treatment method of plugging water stop construction for foundation pit dewatering well to penetrate through concrete base plate of basement |
| CN206346209U (en) * | 2016-12-09 | 2017-07-21 | 中国一冶集团有限公司 | A kind of quick solution dewatering well piping plugging structure |
| CN110820781A (en) * | 2019-12-03 | 2020-02-21 | 上海宝冶集团有限公司 | Well plugging method for dewatering well |
| CN111501858A (en) * | 2020-04-15 | 2020-08-07 | 中国二十冶集团有限公司 | Construction method for detecting leakage by using foundation pit bottom plate dewatering well plugging device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210226 |
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| RJ01 | Rejection of invention patent application after publication |