CN109869116B - Dewatering well plugging structure and construction method thereof - Google Patents
Dewatering well plugging structure and construction method thereof Download PDFInfo
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- CN109869116B CN109869116B CN201910170763.3A CN201910170763A CN109869116B CN 109869116 B CN109869116 B CN 109869116B CN 201910170763 A CN201910170763 A CN 201910170763A CN 109869116 B CN109869116 B CN 109869116B
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Abstract
一种降水井封堵结构及其施工方法，包括钢筋网，所述钢筋网水平固定装配在降水井的内壁上，钢筋网下方填充有密封材料，钢筋网上表面铺设有止水膨胀胶条，且止水膨胀胶条与钢筋网固定连接，止水膨胀胶条上表面设有浇注模板，且浇注模板与降水井侧壁固定连接，浇注模板顶部浇注有灌浆料，灌浆料顶部与降水井井口平齐，降水井井口上方开设有环状凹槽，环状凹槽内安装有止水条，降水井井口上方固定有盖板，盖板通过紧固件与降水井井口的混凝土固定连接；本发明的封堵结构和施工方法具有经济实用、简单易行、封堵质量好、防止底板渗漏、整体结构稳固、承载能力高等优点，最高承载力可达800kN，本发明主要用于解决水压较大的井口封堵施工问题。
A dewatering well plugging structure and a construction method thereof, comprising a reinforcing mesh, the reinforcing mesh being horizontally fixed and assembled on the inner wall of the dewatering well, a sealing material is filled under the reinforcing mesh, and a water-stop expansion rubber strip is laid on the surface of the reinforcing mesh, and The water-stop expansion rubber strip is fixedly connected with the steel mesh, and the upper surface of the water-stop expansion rubber strip is provided with a pouring template, and the pouring template is fixedly connected with the side wall of the dewatering well. The top of the wellhead of the dewatering well is provided with an annular groove, a water stop strip is installed in the annular groove, a cover plate is fixed above the wellhead of the dewatering well, and the cover plate is fixedly connected with the concrete of the wellhead of the dewatering well through fasteners; the present invention The plugging structure and construction method have the advantages of economical and practical, simple and easy to implement, good plugging quality, prevention of leakage of the bottom plate, stable overall structure, high bearing capacity, and the highest bearing capacity can reach 800kN. Large wellhead plugging construction problems.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering, and particularly relates to a dewatering well plugging structure and a construction method thereof.
Background
Along with the development and utilization of underground space, the excavation depth of underground engineering is deeper and deeper, and the problems of soil body slippage, water leakage of a supporting structure, instability of a foundation pit and the like are easily caused by construction under the condition of high water level. In order to ensure the construction safety, effective measures are required to reduce the underground water level, and the common method is to arrange a certain number of precipitation wells in a building bottom plate for precipitation treatment. However, for precipitation wells with high water pressure and high water yield, how to plug well mouths is a construction problem, and no good solution is provided at present.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a dewatering well plugging structure and a construction method thereof, and the technical scheme is as follows:
the utility model provides a precipitation well block structure, including the reinforcing bar net, the fixed assembly of reinforcing bar net level is on the inner wall of precipitation well, the packing of reinforcing bar net below has sealing material, stagnant water inflation adhesive tape has been laid to the reinforcing bar net upper surface, and stagnant water inflation adhesive tape and reinforcing bar net fixed connection, stagnant water inflation adhesive tape upper surface is equipped with the pouring template, and pouring template and precipitation well lateral wall fixed connection, the pouring of pouring template top has the grout material, grout material top and precipitation well head parallel and level, annular groove has been seted up to precipitation well head top, install the stagnant water strip in the annular groove, precipitation well head top is fixed with the apron, the apron passes through the fastener and the concrete fixed connection of precipitation well head.
The reinforcing mesh is positioned 0.4m below the ground of the dewatering well.
And the concrete surface above the wellhead of the dewatering well is bonded with the cover plate through silicone adhesive.
A construction method of a dewatering well plugging structure adopts the dewatering well plugging structure and comprises the following steps:
and 11, brushing antirust paint on the cover plate for protection.
Compared with the prior art, the invention has the beneficial effects that:
the plugging structure and the construction method have the advantages of economy, practicability, simplicity, practicability, good plugging quality, prevention of bottom plate leakage, stable overall structure, high bearing capacity and the like, the highest bearing capacity can reach 800kN, the plugging structure and the construction method are mainly used for solving the plugging construction problem of the wellhead with high water pressure, and meanwhile, the plugging structure and the construction method have reference significance for the water outlet problem of side holes and rock wall holes.
Drawings
FIG. 1 is a schematic view of a plugging structure of a dewatering well according to the present invention;
fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Wherein: a reinforcing mesh 1; a sealing material 2; an expansion rubber strip 3; pouring the template 4; grouting material 5; an annular groove 6; a water stop bar 7; a cover plate 8; a fastener 9; a silicone adhesive 10.
Detailed Description
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
As shown in fig. 1 to 2, the invention provides a plugging structure of a dewatering well, which comprises a reinforcing mesh 1, wherein the reinforcing mesh 1 is horizontally and fixedly assembled on the inner wall of the dewatering well, connecting pieces are welded around the reinforcing mesh 1, the connecting pieces are fixedly assembled on the inner wall of the dewatering well through bolts, a sealing material 2 is filled below the reinforcing mesh 1, the sealing material 2 is a mixture, a water stopping expansion adhesive tape 3 is laid on the upper surface of the reinforcing mesh 1, the water stopping expansion adhesive tape 3 is connected on the reinforcing mesh 1 through adhesion, a pouring template 4 is arranged on the upper surface of the water stopping expansion adhesive tape 3, the pouring template 4 is fixedly connected with the side wall of the dewatering well through bolts, a grouting material 5 is poured on the top of the pouring template 4, the top of the grouting material 5 is flush with the wellhead of the dewatering well, an annular groove 6 is arranged above the wellhead of the dewatering well, and specifically, the annular groove 6 is arranged close to the wellhead of the dewatering well, and a water stop bar 7 is installed in the annular groove 6, a cover plate 8 is fixed above the wellhead of the precipitation well, the cover plate 8 is fixedly connected with concrete of the wellhead of the precipitation well through a fastener 9, and the fastener 8 can be a common high-strength bolt or an expansion bolt.
The reinforcing mesh 1 is positioned at a position 0.4m below the ground of the dewatering well.
And the concrete surface above the wellhead of the dewatering well is bonded with the cover plate 8 through silicone adhesive 10.
A construction method of a dewatering well plugging structure adopts the dewatering well plugging structure and comprises the following steps:
8, pouring a grouting material 5 above the pouring template until the grouting material 5 is flush with the wellhead of the dewatering well;
and 11, brushing antirust paint on the cover plate 8 for protection.
The above examples are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above examples, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (2)
1. A plugging structure of a dewatering well is characterized by comprising a steel bar mesh, wherein the steel bar mesh is horizontally and fixedly assembled on the inner wall of the dewatering well, a sealing material is filled below the steel bar mesh, a water stopping expansion adhesive tape is laid on the upper surface of the steel bar mesh and fixedly connected with the steel bar mesh, a pouring template is arranged on the upper surface of the water stopping expansion adhesive tape and fixedly connected with the side wall of the dewatering well, a grouting material is poured on the top of the pouring template, the top of the grouting material is flush with the wellhead of the dewatering well, an annular groove is formed above the wellhead of the dewatering well, a water stopping strip is installed in the annular groove, a cover plate is fixed above the wellhead of the dewatering well and fixedly connected with concrete at the wellhead of the dewatering well through a fastener;
the reinforcing mesh is positioned at a position 0.4m below the ground of the dewatering well;
and the concrete surface above the wellhead of the dewatering well is bonded with the cover plate through silicone adhesive.
2. The construction method of the dewatering well plugging structure adopts the dewatering well plugging structure as claimed in claim 1, and is characterized by comprising the following steps:
step 1, pumping water on the ground near a dewatering well;
step 2, pumping water in the dewatering well to 0.5m below the ground;
step 3, cleaning the surface of the cover plate;
step 4, horizontally and fixedly installing the reinforcing mesh on the inner wall of the dewatering well at a position 0.4m below the ground;
step 5, filling a sealing material below the reinforcing mesh through the reinforcing mesh until the sealing material is flush with the lower surface of the reinforcing mesh;
step 6, paving a water-stopping expansion adhesive tape on the surface of the reinforcing steel bar net;
step 7, laying a pouring template on the top of the water-stopping expansion adhesive tape and fixing;
step 8, pouring grouting materials above the pouring template until the grouting materials are flush with the wellhead of the dewatering well;
step 9, forming an annular groove on the concrete surface above the wellhead of the dewatering well, smearing silicone adhesive, and installing a water stop strip in the annular groove;
step 10, positioning a cover plate to enable the cover plate to be concentric with a wellhead of the dewatering well, adhering the cover plate to silicone adhesive, and fixing the cover plate by using a fastening piece;
and 11, brushing antirust paint on the cover plate for protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910170763.3A CN109869116B (en) | 2019-03-07 | 2019-03-07 | Dewatering well plugging structure and construction method thereof |
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| CN201910170763.3A CN109869116B (en) | 2019-03-07 | 2019-03-07 | Dewatering well plugging structure and construction method thereof |
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| CN109869116A CN109869116A (en) | 2019-06-11 |
| CN109869116B true CN109869116B (en) | 2021-11-23 |
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| CN117248550A (en) * | 2023-09-27 | 2023-12-19 | 北京路鹏达建设发展有限责任公司 | A construction method for secondary blocking and dewatering with steel cover plates for large water output dewatering wells |
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| CN109869116A (en) | 2019-06-11 |
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Application publication date: 20190611 Assignee: SHENYANG DIBO BUILDING ENGINEERING Co.,Ltd. Assignor: Northeastern University Contract record no.: X2023210000301 Denomination of invention: A Sealing Structure and Construction Method for Dewatering Wells Granted publication date: 20211123 License type: Common License Record date: 20231213 |