CN114960712A - Dewatering well structure with multilayer sealing structure - Google Patents
Dewatering well structure with multilayer sealing structure Download PDFInfo
- Publication number
- CN114960712A CN114960712A CN202210668599.0A CN202210668599A CN114960712A CN 114960712 A CN114960712 A CN 114960712A CN 202210668599 A CN202210668599 A CN 202210668599A CN 114960712 A CN114960712 A CN 114960712A
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- Prior art keywords
- sealing
- well
- pipe
- dewatering well
- seal
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0001—Rubbers
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- 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
Abstract
The invention provides a dewatering well structure with a multilayer sealing structure, and belongs to the technical field of dewatering well equipment. It has solved the poor problem of current precipitation well structure leakproofness. This precipitation well structure with multilayer seal structure, including setting up a plurality of chimney filters in the precipitation well, the length direction butt joint of chimney filter is followed to a plurality of chimney filters, and the surface and the wall of a well of every chimney filter laminate mutually, has all seted up the filtration pore on the every chimney filter, and the junction of adjacent chimney filter is provided with the seal assembly who is used for well casing and chimney filter to seal simultaneously, is provided with the siphunculus structure that is used for supplying the pipeline to pass on the pressure suction system on the seal assembly. The invention has the advantage of good sealing performance.
Description
Technical Field
The invention belongs to the technical field of dewatering well equipment, and relates to a dewatering well structure with a multilayer sealing structure.
Background
The foundation pit dewatering refers to dewatering work performed for ensuring that the foundation pit can be constructed under a dry condition and preventing slope instability, foundation quicksand, pit bottom uplift, pit bottom piping and foundation bearing capacity reduction when the underground water level is higher than the excavation bottom surface when the foundation pit is excavated.
The foundation ditch needs to be to the inside evacuation of precipitation well at the in-process of precipitation, and current precipitation well is provided with closing device at its top usually, and the major defect of its existence is: when the interior of the sealing material is dug, the interior of the dewatering well is directly exposed to the air, so that the interior of the dewatering well can not be vacuumized any more.
Disclosure of Invention
The invention aims to solve the problems and provides a dewatering well structure with a multi-layer sealing structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a precipitation well structure with multilayer seal structure, is including setting up a plurality of chimney filters in the precipitation well, its characterized in that, a plurality of the chimney filter along the length direction butt joint of chimney filter, and the surface and the wall of a well of every chimney filter laminate mutually, all seted up the filtration pore on every chimney filter, the junction of adjacent chimney filter is provided with and is used for well casing and chimney filter simultaneously sealed seal assembly, the last siphunculus structure that is used for supplying pipeline to pass on the pressure suction system that is provided with of seal assembly.
In the dewatering well structure with the multi-layer sealing structure, the sealing assembly comprises an outer sealing element and an inner sealing element, the outer sealing element extends into the well casing of the dewatering well in a radial direction and is used for sealing adjacent well casings, and the inner sealing element is arranged on the inner side of the outer sealing element and between adjacent filter pipes.
In the dewatering well structure with the multilayer sealing structure, the through pipe structure is arranged on the inner sealing element.
In the dewatering well structure with the multilayer sealing structure, the inner sealing element comprises a sealing air bag, an air valve for inflating or deflating the sealing air bag is arranged on the sealing air bag, and the through pipe structure is arranged on the sealing air bag.
In the dewatering well structure with the multilayer sealing structure, the through pipe structure comprises a connecting pipeline arranged along the height direction of the sealing air bag, the lower end of the connecting pipeline extends through the sealing air bag, and the upper end of the connecting pipeline is provided with a sealing plug for sealing after the pipeline is inserted.
In the dewatering well structure with the multilayer sealing structure, the connecting pipeline is provided with a cannula end part, the cannula end part is arranged in an upward extending manner from the upper surface of the sealing airbag, and the sealing plug covers the top of the cannula end part.
In the dewatering well structure with the multilayer sealing structure, the diameter of the top of the sealing plug is larger than that of the end part of the insertion pipe, and the diameter of the bottom of the sealing plug is smaller than that of the end part of the insertion pipe.
In the dewatering well structure with the multilayer sealing structure, the sealing plug is provided with a plurality of through holes for pipelines to pass through, and the through holes are mutually and independently arranged.
In the dewatering well structure with the multilayer sealing structure, the filter holes on each filter tube are uniformly distributed on the filter tubes.
In the dewatering well structure with the multi-layer sealing structure, the outer sealing piece is made of a rubber material.
Compared with the prior art, the invention has the advantages that: a plurality of filter tubes butt joints penetrate to the precipitation well in, the surface butt of filter tube is provided with seal assembly between per two adjacent filter tubes on the inner wall of precipitation well, and is provided with the siphunculus structure that only is used for the intubate on seal assembly for precipitation well can the layering formation effective vacuum in foundation ditch layering excavation in-process, has sealed effectual advantage.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a structural view of the seal assembly of the present invention.
Fig. 3 is a schematic structural view of a through pipe structure in the invention.
In the figure, 1, a filter tube; 2. a seal assembly; 3. a through pipe structure; 4. an outer seal; 5. an inner seal; 6. sealing the air bag; 7. an air valve; 8. connecting a pipeline; 9. a sealing plug; 10. an intubation end; 11. perforating; 12. and (5) filtering holes.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a precipitation well structure with a multilayer sealing structure comprises a plurality of filter pipes 1 arranged in a precipitation well, wherein the plurality of filter pipes 1 are butted along the length direction of the filter pipes 1, the outer surface of each filter pipe 1 is attached to the well wall, filter holes 12 are formed in each filter pipe, a sealing component 2 used for sealing a well pipe and the filter pipes 1 simultaneously is arranged at the joint of the adjacent filter pipes 1, and a through pipe structure 3 used for allowing a pipeline on a pressure suction system to pass is arranged on the sealing component 2.
In this embodiment, a plurality of filter tubes 1 are butted and penetrated into the dewatering well, the outer surfaces of the filter tubes 1 are butted and connected with the inner wall of the dewatering well, a sealing component 2 is arranged between every two adjacent filter tubes 1, and a through pipe structure 3 only used for inserting pipes is arranged on the sealing component 2, so that air outside the dewatering well cannot penetrate through the multilayer sealing components 2 to enter the bottom of the dewatering well, and the dewatering well has the advantage of good sealing effect.
In the present embodiment the seal assembly 2 comprises an outer seal 4 and an inner seal 5, the outer seal 4 extending radially into the well casing of the dewatering well for sealing against an adjacent well casing, in particular the outer seal 4 is made of a rubber material. The inner seal 5 is arranged inside the outer seal 4 and between adjacent filter tubes 1. The outer seal 4 and the inner seal 5 may be formed integrally or separately for sealing between adjacent well tubulars and adjacent filter tubulars 1.
In the present embodiment, the through pipe structure 3 is disposed on the inner sealing member 5, the inner sealing member 5 includes a sealing air bag 6, the sealing air bag 6 is disposed with a valve 7 for inflating or deflating the sealing air bag 6, and specifically, the through pipe structure 3 is disposed on the sealing air bag 6.
The sealed air bag 6 is inflated and deflated through the upper inflating valve 7, when the sealed air bag 6 is full of gas, the edge of the sealed air bag 6 abuts against the inner surface of the dewatering well, the whole body has a sealing effect, and air is prevented from entering the inside.
Specifically, the through pipe structure 3 comprises a connecting pipeline 8 arranged along the height direction of the sealing airbag 6, the lower end of the connecting pipeline 8 extends through the sealing airbag 6, and the upper end of the connecting pipeline 8 is provided with a sealing plug 9 for sealing after the pipeline is inserted. The sealing plug 9 acts as a seal preventing air from entering the interior through the duct structure 3.
In this embodiment, the connecting duct 8 has a cannula end 10, the cannula end 10 extends upward from the upper surface of the sealing balloon 6, and the sealing plug 9 covers the top of the cannula end 10, specifically, in order to facilitate the sealing installation of the sealing plug 9, the diameter of the top of the sealing plug 9 is greater than that of the cannula end 10, and the diameter of the bottom of the sealing plug 9 is smaller than that of the cannula end 10.
In this embodiment, the sealing plug 9 is provided with a plurality of through holes 11 for the pipes to pass through, the through holes 11 are independent from each other, the through holes 11 are used for plugging the pipes such as the water outlet pipe, the air supply pipe and the vacuum pipe, and the sealing plugs 9 with different numbers of through holes 11 can be replaced according to the requirement of the pipes to keep normal operation.
In this embodiment, the filtering holes 12 on each filtering tube 1 are uniformly distributed on the filtering tube 1, so as to improve the water filtering performance of the filtering tube 1.
The working principle of the invention is as follows: a plurality of filter tubes 1 are butted and penetrated into the dewatering well, the outer surfaces of the filter tubes 1 are butted against the inner wall of the dewatering well, a sealing component 2 is arranged between every two adjacent filter tubes 1, a through pipe structure 3 only used for inserting pipes is arranged on the sealing component 2, and the advantage of good sealing effect is improved.
Specifically, the sealing air bag 6 is inflated and deflated through the upper inflating valve 7, when the sealing air bag 6 is full of air, the edge of the sealing air bag 6 abuts against the inner surface of the dewatering well, the whole sealing effect is achieved, a water outlet pipe, an air feeding pipe and a vacuum pipe on the pressure suction system penetrate downwards into the well through the through hole 11 in the sealing plug 9 to work, multi-layer vacuum in the well is achieved through the sealing air bags 6, and therefore the working performance of the dewatering well structure is improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of filter tube 1, seal assembly 2, tube arrangement 3, outer seal 4, inner seal 5, sealing balloon 6, valve mouth 7, connecting duct 8, sealing plug 9, cannula end 10, perforation 11, filter hole 12 etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
Claims (10)
1. The utility model provides a precipitation well structure with multilayer seal structure, is including setting up a plurality of chimney filters (1) in the precipitation well, its characterized in that, a plurality of chimney filter (1) along the length direction butt joint of chimney filter (1), and the surface and the wall of a well of every chimney filter (1) laminate mutually, has all seted up filtration pore (12) on every chimney filter (1), and the junction of adjacent chimney filter (1) is provided with and is used for well casing and chimney filter simultaneously sealed seal assembly (2), be provided with on seal assembly (2) and be used for supplying siphunculus structure (3) that the pipeline passed on the pressure suction system.
2. Dewatering well structure with a multi-layer sealing structure according to claim 1, characterized in that the sealing assembly (2) comprises an outer seal (4) and an inner seal (5), the outer seal (4) extending radially into the well casing of the dewatering well for sealing against an adjacent well casing, the inner seal (5) being arranged inside the outer seal (4) and between adjacent filter pipes (1).
3. Dewatering well structure with multi-layer sealing structure according to claim 2, characterized in that the through pipe structure (3) is arranged on the inner sealing (5).
4. Dewatering well structure with multi-layer sealing structure according to claim 3, characterized in that the inner sealing member (5) comprises a sealing air bag (6), the sealing air bag (6) is provided with a valve (7) for inflating or deflating the sealing air bag (6), and the through pipe structure (3) is arranged on the sealing air bag (6).
5. Dewatering well structure with multi-layer sealing structure according to claim 6, characterized in that the through pipe structure (3) includes a connecting pipe (8) arranged along the height direction of the sealing air bag (6), the lower end of the connecting pipe (8) extends through the sealing air bag (6), and the upper end of the connecting pipe (8) is provided with a sealing plug (9) for sealing after the pipe is inserted.
6. Precipitation well structure with multi-layer sealing structure according to claim 5, characterized in that said connecting pipe (8) has a cannula end (10), said cannula end (10) is extended upward from the upper surface of the sealing balloon (6), and said sealing plug (9) covers the top of the cannula end (10).
7. Dewatering well structure with multi-layer sealing structure according to claim 5, characterized in that the diameter of the top of the sealing plug (9) is larger than the diameter of the pipe insertion end (10) and the diameter of the bottom of the sealing plug (9) is smaller than the diameter of the pipe insertion end (10).
8. The dewatering well structure with the multilayer sealing structure according to claim 6, characterized in that the sealing plug (9) is provided with a plurality of perforations (11) for the pipeline to pass through, and the perforations (11) are independent from each other.
9. Dewatering well structure with multilayer seal structure according to claim 1, characterized in that the filtration pores (12) on each filtration pipe (1) are opened and distributed on the filtration pipe (1) evenly.
10. Dewatering well structure with multi-layer sealing structure according to claim 2, characterized in that the outer sealing (4) is made of rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210668599.0A CN114960712B (en) | 2022-06-14 | 2022-06-14 | Dewatering well structure with multilayer sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210668599.0A CN114960712B (en) | 2022-06-14 | 2022-06-14 | Dewatering well structure with multilayer sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114960712A true CN114960712A (en) | 2022-08-30 |
| CN114960712B CN114960712B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210668599.0A Active CN114960712B (en) | 2022-06-14 | 2022-06-14 | Dewatering well structure with multilayer sealing structure |
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| Country | Link |
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| CN (1) | CN114960712B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2349673A (en) * | 1999-05-01 | 2000-11-08 | Pipeline Engineering And Suppl | Inflatable seal |
| CN102518141A (en) * | 2011-12-19 | 2012-06-27 | 同济大学 | Deep foundation pit dewatering and decompressing combination well controlled in subsection manner |
| CN204875825U (en) * | 2015-07-23 | 2015-12-16 | 上海渊丰地下工程技术有限公司 | Block mount formula precipitation well seals protection device |
| CN109356181A (en) * | 2018-10-12 | 2019-02-19 | 武汉市市政建设集团有限公司 | A kind of deep basal pit mixing dewatering well for multilayer aquifer system design |
| CN213979010U (en) * | 2020-12-01 | 2021-08-17 | 上海渊丰地下工程技术有限公司 | Novel precipitation well structure |
-
2022
- 2022-06-14 CN CN202210668599.0A patent/CN114960712B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2349673A (en) * | 1999-05-01 | 2000-11-08 | Pipeline Engineering And Suppl | Inflatable seal |
| CN102518141A (en) * | 2011-12-19 | 2012-06-27 | 同济大学 | Deep foundation pit dewatering and decompressing combination well controlled in subsection manner |
| CN204875825U (en) * | 2015-07-23 | 2015-12-16 | 上海渊丰地下工程技术有限公司 | Block mount formula precipitation well seals protection device |
| CN109356181A (en) * | 2018-10-12 | 2019-02-19 | 武汉市市政建设集团有限公司 | A kind of deep basal pit mixing dewatering well for multilayer aquifer system design |
| CN213979010U (en) * | 2020-12-01 | 2021-08-17 | 上海渊丰地下工程技术有限公司 | Novel precipitation well structure |
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| Publication number | Publication date |
|---|---|
| CN114960712B (en) | 2023-10-13 |
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