CN110777732A - Back water stopping method for joint between water inlet pool and main canal box culvert of supporting engineering - Google Patents
Back water stopping method for joint between water inlet pool and main canal box culvert of supporting engineering Download PDFInfo
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- CN110777732A CN110777732A CN201911264390.2A CN201911264390A CN110777732A CN 110777732 A CN110777732 A CN 110777732A CN 201911264390 A CN201911264390 A CN 201911264390A CN 110777732 A CN110777732 A CN 110777732A
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- box culvert
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a method for stopping water at the joint between a water inlet pool and a trunk canal box culvert in supporting engineering, which comprises the following steps: selecting a U-shaped rubber water stop with a left horizontal wing plate, a right horizontal wing plate and a U-shaped bend; secondly, when a water inlet tank of the matched engineering is cast in place, reserving a first L-shaped groove at the edge of a joint of a water inlet of the water inlet tank and a water outlet of a main canal box culvert; thirdly, digging a second L-shaped groove with the same shape as the first L-shaped groove at the edge of the water outlet of the main canal box culvert, roughening the bottom of the rectangular groove, coating an interface agent, and filling the bottom of the rectangular groove with modified epoxy mortar; fourthly, a first polyethylene foam plate is arranged in a joint seam between the water inlet of the water inlet pool and the water outlet of the main canal box culvert, and then a U-shaped rubber water stop is arranged in the joint seam; and fifthly, filling asphalt hemp threads in the U-shaped bend, filling polysulfide sealant in the seam, and then brushing the cement-based anti-seepage coating. The invention ensures the water stopping effect and is convenient and quick to construct and operate.
Description
Technical Field
The invention relates to a water stopping method at a joint between a water inlet pool and a main canal box culvert, in particular to a rear water stopping method at the joint between the water inlet pool and the main canal box culvert in supporting engineering.
Background
The water seal is usually disposed at the permanent seam, including the structure seam, the expansion joint, etc., to prevent water from leaking into the structure or the side of the water-back through the permanent seam. The water-stopping material is usually polyvinyl chloride, synthetic rubber, stainless steel, natural rubber, copper, and the like.
The connection between the mating engineering water inlet pool and the main canal box culvert is generally realized by embedding or lapping a water stop belt at the joint of the mating engineering water inlet pool and the main canal box culvert so as to prevent water in the main canal box culvert from flowing outwards; the water stop is generally a rubber water stop, the single-side width of the water stop embedded in concrete is generally 120-250 mm, and the thickness of a reinforced concrete protective layer of hydraulic and hydroelectric engineering is generally 50-70 mm, so that the width of the water stop embedded in the concrete is larger than the thickness of the reinforced concrete protective layer, and a certain contradiction exists between the water stop and a steel bar in the spatial position. The common method is to fold the reinforcing steel bars inwards to avoid the water stop, and the method of folding the reinforcing steel bars inwards to avoid the water stop causes the structural strength of the building to be greatly reduced, the water stop effect is not ideal, the construction cost is high, and the construction period is long.
Disclosure of Invention
The invention aims to provide a rear water stopping method for a joint between a water inlet pool and a trunk canal box culvert of a matched project, which realizes reliable water stopping, convenient and quick construction and low cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a rear water stopping method for a joint between a supporting engineering water inlet pool and a main canal box culvert, which comprises the following steps:
step one, selecting a water stop: selecting a U-shaped rubber water stop with a left horizontal wing plate, a right horizontal wing plate and a U-shaped bend;
secondly, when a matched engineering water inlet tank is cast in situ, reserving a first L-shaped groove at the edge of a joint of a water inlet of the water inlet tank and a water outlet of a main canal box culvert;
thirdly, digging a second L-shaped groove with the same shape as the first L-shaped groove at the opening edge of the water outlet of the trunk canal box culvert, so as to form a rectangular groove at the joint of the water inlet pool and the water outlet of the trunk canal box culvert, roughening the bottom of the rectangular groove, coating an interface agent, and filling the bottom of the rectangular groove with modified epoxy mortar;
fourthly, a first polyethylene foam plate is arranged in a joint seam between a water inlet of the water inlet pool and a water outlet of the trunk canal box culvert, the upper end of the first polyethylene foam plate extends to a length which is away from the bottom of the rectangular groove by one U-shaped bend, then the U-shaped bend of the U-shaped rubber water stop belt is arranged in the joint seam, the left and right horizontal wing plates are bonded at the bottom of the rectangular groove through a steel bonding type adhesive, and the left and right horizontal wing plates are fixed in the bottom concrete of the rectangular groove through expansion bolts;
fifthly, filling asphalt hemp threads in the U-shaped bend, then installing a second polyethylene foam plate in a joint seam at the upper part of the U-shaped bend, wherein the upper end of the second polyethylene foam plate extends to a seam opening position close to the joint seam, filling polypropylene emulsion mortar in the rectangular groove after filling polysulfide sealing paste in the seam opening, and finally brushing cement-based anti-seepage coating on the surface of the polypropylene emulsion mortar; and finishing the post water stopping construction.
And a plastic protective sleeve is sleeved at the upper end of the expansion bolt.
The invention solves the problem that the water stopping at the joint of the main canal box culvert and the water inlet pool of the supporting engineering is difficult to solve because no post-cast strip is arranged in the current cast-in-place construction or groover construction. According to the invention, the water-stopping effect is ensured by plugging the water seepage channel between the U-shaped rubber water-stopping belt and the original concrete surface, and meanwhile, the construction operation is convenient and fast.
Drawings
Fig. 1 is a schematic view of a joint between a water intake basin and a main canal box culvert according to the present invention.
Fig. 2 is a schematic view of the U-shaped rubber waterstop of the present invention disposed at the joint between the intake basin and the main canal box culvert.
Fig. 3 is a schematic sectional view taken along line a-a of fig. 2.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-3, the method for post-sealing water at the joint 3 between the water intake pool 1 and the main canal box culvert 2 of the supporting project of the invention comprises the following steps:
step one, selecting a water stop: selecting a U-shaped rubber water stop 4 with a left horizontal wing plate 4.1, a right horizontal wing plate 4.2 and a U-shaped bend 4.3;
secondly, when the water inlet tank 1 of the cast-in-place supporting project is used, a first L-shaped groove 5 is reserved at the edge of a joint of a water inlet of the water inlet tank 1 and a water outlet of the main canal box culvert 2;
thirdly, digging a second L-shaped groove 6 with the same shape as the first L-shaped groove 5 at the edge of the water outlet of the main canal box culvert 2 to form a rectangular groove at the joint 3 between the water inlet of the water inlet pool 1 and the water outlet of the main canal box culvert 2, roughening the bottom of the rectangular groove, coating an interface agent, and filling the bottom of the rectangular groove with modified epoxy mortar;
fourthly, a first polyethylene foam plate 7 is installed in a seam 3 between a water inlet of the water inlet pool 1 and a water outlet of the main canal box culvert 2, the upper end of the first polyethylene foam plate 7.1 extends to a length which is 4.3 of a U-shaped bend away from the bottom of the rectangular groove, then the U-shaped bend 4.3 of the U-shaped rubber water stop belt 4 is installed in the seam 3, the left and right horizontal wing plates 4.1 and 4.2 are bonded at the bottom of the rectangular groove through a steel bonding type adhesive, the left and right horizontal wing plates 4.1 and 4.2 are fixed in groove bottom concrete of the rectangular groove through expansion bolts 8.1 and 8.2, and then plastic protective sleeves 8.3 are respectively buckled at the top ends of the expansion bolts 8.1 and 8.2;
fifthly, filling asphalt hemp threads 9 in the U-shaped bend 4.3, then installing a second polyethylene foam plate 7.2 in the seam 3 at the upper part of the U-shaped bend 4.3, extending the upper end of the second polyethylene foam plate 7.2 to a seam opening position close to the seam 3, filling polysulfide sealant 10 in the seam opening, filling acrylic emulsion mortar 11 in the rectangular groove, and finally brushing cement-based anti-seepage paint on the surface of the acrylic emulsion mortar 11; and finishing the post water stopping construction.
Claims (2)
1. The utility model provides a supporting engineering intake pond and back stagnant water method of seam crossing between trunk canal box culvert which characterized in that: the method comprises the following steps:
step one, selecting a water stop: selecting a U-shaped rubber water stop with a left horizontal wing plate, a right horizontal wing plate and a U-shaped bend;
secondly, when a matched engineering water inlet tank is cast in situ, reserving a first L-shaped groove at the edge of a joint of a water inlet of the water inlet tank and a water outlet of a main canal box culvert;
thirdly, digging a second L-shaped groove with the same shape as the first L-shaped groove at the opening edge of the water outlet of the trunk canal box culvert, so as to form a rectangular groove at the joint of the water inlet pool and the water outlet of the trunk canal box culvert, roughening the bottom of the rectangular groove, coating an interface agent, and filling the bottom of the rectangular groove with modified epoxy mortar;
fourthly, a first polyethylene foam plate is arranged in a joint seam between a water inlet of the water inlet pool and a water outlet of the trunk canal box culvert, the upper end of the first polyethylene foam plate extends to a length which is away from the bottom of the rectangular groove by one U-shaped bend, then the U-shaped bend of the U-shaped rubber water stop belt is arranged in the joint seam, the left and right horizontal wing plates are bonded at the bottom of the rectangular groove through a steel bonding type adhesive, and the left and right horizontal wing plates are fixed in the bottom concrete of the rectangular groove through expansion bolts;
fifthly, filling asphalt hemp threads in the U-shaped bend, then installing a second polyethylene foam plate in a joint seam at the upper part of the U-shaped bend, wherein the upper end of the second polyethylene foam plate extends to a seam opening position close to the joint seam, filling polypropylene emulsion mortar in the rectangular groove after filling polysulfide sealing paste in the seam opening, and finally brushing cement-based anti-seepage coating on the surface of the polypropylene emulsion mortar; and finishing the post water stopping construction.
2. The post-water-stopping method for the joint between the supporting engineering water inlet pool and the main canal box culvert according to claim 1, which is characterized in that: and a plastic protective sleeve is sleeved at the upper end of the expansion bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264390.2A CN110777732A (en) | 2019-12-11 | 2019-12-11 | Back water stopping method for joint between water inlet pool and main canal box culvert of supporting engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264390.2A CN110777732A (en) | 2019-12-11 | 2019-12-11 | Back water stopping method for joint between water inlet pool and main canal box culvert of supporting engineering |
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| Publication Number | Publication Date |
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| CN110777732A true CN110777732A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911264390.2A Pending CN110777732A (en) | 2019-12-11 | 2019-12-11 | Back water stopping method for joint between water inlet pool and main canal box culvert of supporting engineering |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317021A (en) * | 2015-06-18 | 2016-02-10 | 贵州省水利水电勘测设计研究院 | Connection method and structure for variable-section continuous rigid frame aqueducts |
| CN205444119U (en) * | 2016-03-23 | 2016-08-10 | 河南省水利勘测设计研究有限公司 | Aqueduct is adjacent stride between stagnant water structure of seam crossing |
| CN207727515U (en) * | 2018-01-12 | 2018-08-14 | 中国葛洲坝集团第一工程有限公司 | A kind of water sealing structure at large size water delivery building expansion joint |
| CN209669813U (en) * | 2019-01-30 | 2019-11-22 | 南水北调中线干线工程建设管理局河南分局 | A kind of water delivery analysis on aqueduct structure seam leakage reparation structure |
-
2019
- 2019-12-11 CN CN201911264390.2A patent/CN110777732A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317021A (en) * | 2015-06-18 | 2016-02-10 | 贵州省水利水电勘测设计研究院 | Connection method and structure for variable-section continuous rigid frame aqueducts |
| CN205444119U (en) * | 2016-03-23 | 2016-08-10 | 河南省水利勘测设计研究有限公司 | Aqueduct is adjacent stride between stagnant water structure of seam crossing |
| CN207727515U (en) * | 2018-01-12 | 2018-08-14 | 中国葛洲坝集团第一工程有限公司 | A kind of water sealing structure at large size water delivery building expansion joint |
| CN209669813U (en) * | 2019-01-30 | 2019-11-22 | 南水北调中线干线工程建设管理局河南分局 | A kind of water delivery analysis on aqueduct structure seam leakage reparation structure |
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Application publication date: 20200211 |