CN113756371A - Concrete density construction method at horizontal seam of waterproof concrete - Google Patents
Concrete density construction method at horizontal seam of waterproof concrete Download PDFInfo
- Publication number
- CN113756371A CN113756371A CN202111078227.4A CN202111078227A CN113756371A CN 113756371 A CN113756371 A CN 113756371A CN 202111078227 A CN202111078227 A CN 202111078227A CN 113756371 A CN113756371 A CN 113756371A
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- concrete
- construction
- water stop
- stop plate
- grouting
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to reverse construction of an industrial building cyclone well, in particular to a concrete density construction method for a waterproof concrete horizontal joint, which can ensure the concrete density of the horizontal construction joint. Excavating earthwork at the upper section of the cyclone well, binding reinforcing steel bars, and welding a water stop plate at the inner part of the wall of the cyclone well; grouting guide pipes which are obliquely arranged are arranged on the water stop plate at intervals; pouring a sand cushion layer to enable the sand cushion layer to sink over the middle of the water stop plate; erecting a formwork and pouring concrete at the upper section; excavating the earthwork at the lower section of the cyclone well, removing a sand cushion layer, and binding reinforcing steel bars; supporting a template, and pouring concrete at the lower section; and grouting at the joint of the upper and lower sections of concrete through grouting pipes. According to the invention, the water stop plate and the grouting guide pipe are adopted, so that compact construction is more convenient at the joint, the construction operation is simple and convenient, the construction period is saved, and the water stop plate and the slurry injected into the grouting guide pipe are matched with each other, so that the joint of the concrete construction joints at the upper end and the lower end is tight, and the waterproof effect is good.
Description
Technical Field
The invention relates to reverse construction of an industrial building cyclone well, in particular to a concrete density construction method for a waterproof concrete horizontal joint, which can ensure the concrete density of the horizontal construction joint.
Background
At present, the construction of the domestic industrial building cyclone well and the like generally adopts an open caisson method, a forward method and a reverse method; the open caisson method construction is not suitable for areas with hard soil and rock layers, the requirements of the forward working rule on the stability of deep foundation pit side slopes, the underground water level and the like are very strict, at the moment, the reverse working method is optimal, and the water resistance of the waterproof concrete is controlled to be the highest; usually, the added bell mouth is adopted to pour concrete to ensure the waterproofness of the structure, but the method is not compact in vibration and difficult to ensure the compactness of the concrete outside the water stop plate, so that the waterproofness of the water stop plate is difficult to ensure, and the effect is not good.
Disclosure of Invention
The invention aims to solve the problems, and provides a concrete density construction method for a waterproof concrete horizontal joint, which can ensure the concrete density of the horizontal construction joint.
The invention solves the problems and adopts the technical scheme that:
a concrete density construction method for a horizontal seam of waterproof concrete is carried out according to the following steps:
excavating the upper earthwork of the cyclone well, binding reinforcing steel bars, and welding a water stop plate at the inner part of the wall of the cyclone well;
secondly, obliquely arranged grouting guide pipes are arranged on the water stop plate at intervals, and the top ends of the grouting guide pipes are exposed and positioned on the inner side of the swirl well;
sealing the lower end of the grouting guide pipe by using an adhesive tape;
step four, pouring a sand cushion layer to enable the sand cushion layer to be submerged in the middle of the water stop plate;
step five, supporting a template, performing reverse construction on the upper section of the cyclone well, and pouring concrete on the upper section;
excavating earthwork at the lower section of the cyclone well, removing a sand cushion layer, and binding reinforcing steel bars;
step seven, a template is erected, reverse construction of the lower section of the cyclone shaft is carried out, and concrete is poured on the lower section;
and step eight, grouting at the joint of the upper and lower sections of concrete through grouting guide pipes.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
the water stop plate and the grouting guide pipe are used, so that dense construction at the joint is more convenient, the construction operation is simple and convenient, and the construction period is shortened.
Secondly, the water stop plate is matched with slurry injected by the grouting guide pipe, so that concrete construction joints at the upper end and the lower end are connected tightly, and the waterproof effect is good.
Drawings
FIG. 1 is a schematic cross-sectional view of a wall of a cyclone wellbore in accordance with an embodiment of the present invention.
In the figure: a cylinder wall 1; a grouting guide pipe 2; a water stop steel plate 3; a sand cushion layer 4.
The specific implementation mode is as follows:
the invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.
Referring to fig. 1, a concrete density construction method for a horizontal seam of waterproof concrete is carried out according to the following steps:
excavating the earthwork at the upper section of the cyclone well, binding reinforcing steel bars, and welding a water stop steel plate 3 at the inner part of the wall 1 of the cyclone well;
step two, welding phi 60 grouting guide pipes 2 which are obliquely arranged on a water stop steel plate 3 at intervals, wherein the interval between every two adjacent grouting guide pipes 2 is 1000mm, and the top ends of the grouting guide pipes 2 are exposed and positioned on the inner side of the swirl well;
sealing the lower end of the grouting guide pipe 2 by using an adhesive tape;
step four, pouring a sand cushion 4 to ensure that the sand cushion 4 is submerged in the middle of the water stop steel plate 3;
step five, supporting a template, performing reverse construction on the upper section of the cyclone well, and pouring concrete on the upper section;
excavating earthwork at the lower section of the cyclone well, removing a sand cushion layer 4, and binding reinforcing steel bars;
step seven, a template is erected, reverse construction of the lower section of the cyclone shaft is carried out, and concrete is poured on the lower section;
and step eight, grouting at the joint of the upper and lower sections of concrete through the grouting guide pipe 2 to achieve a compacting effect.
According to the invention, the water-stopping steel plate 3 and the grouting guide pipe 2 are adopted, so that the compact construction at the joint is more convenient, the construction operation is simple and convenient, the construction period is saved, and the concrete construction joints at the upper end and the lower end are tightly jointed through the mutual matching of the water-stopping steel plate 3 and the slurry injected into the grouting guide pipe 2, and the waterproof effect is good.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (1)
1. A concrete density construction method at a horizontal seam of waterproof concrete is characterized by comprising the following steps:
excavating the upper earthwork of the cyclone well, binding reinforcing steel bars, and welding a water stop plate at the inner part of the wall of the cyclone well;
secondly, obliquely arranged grouting guide pipes are arranged on the water stop plate at intervals, and the top ends of the grouting guide pipes are exposed and positioned on the inner side of the swirl well;
sealing the lower end of the grouting guide pipe by using an adhesive tape;
step four, pouring a sand cushion layer to enable the sand cushion layer to be submerged in the middle of the water stop plate;
step five, supporting a template, performing reverse construction on the upper section of the cyclone well, and pouring concrete on the upper section;
excavating earthwork at the lower section of the cyclone well, removing a sand cushion layer, and binding reinforcing steel bars;
step seven, a template is erected, reverse construction of the lower section of the cyclone shaft is carried out, and concrete is poured on the lower section;
and step eight, grouting at the joint of the upper and lower sections of concrete through grouting guide pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111078227.4A CN113756371A (en) | 2021-09-15 | 2021-09-15 | Concrete density construction method at horizontal seam of waterproof concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111078227.4A CN113756371A (en) | 2021-09-15 | 2021-09-15 | Concrete density construction method at horizontal seam of waterproof concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113756371A true CN113756371A (en) | 2021-12-07 |
Family
ID=78795593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111078227.4A Withdrawn CN113756371A (en) | 2021-09-15 | 2021-09-15 | Concrete density construction method at horizontal seam of waterproof concrete |
Country Status (1)
| Country | Link |
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| CN (1) | CN113756371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202455A1 (en) * | 2022-04-18 | 2023-10-26 | 中国矿业大学 | Single-layer well wall having jointed water-stop structure and grouting system, and construction method therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008038426A (en) * | 2006-08-04 | 2008-02-21 | Seibu Polymer Corp | Flexible water stop joint and its construction method |
| WO2014139252A1 (en) * | 2013-03-15 | 2014-09-18 | 中国十七冶集团有限公司 | Method for constructing large raft foundation in high-temperature environment |
| CN206408655U (en) * | 2016-12-15 | 2017-08-15 | 山东科技大学 | The top plate sidewall structure of covered back-digging construction |
| CN110552371A (en) * | 2019-08-30 | 2019-12-10 | 中国一冶集团有限公司 | Construction method for eliminating horizontal construction joints of annular lining wall based on reverse construction method |
| CN111749326A (en) * | 2020-08-03 | 2020-10-09 | 中建八局第三建设有限公司 | Reverse construction basement side wall construction joint processing structure and processing method |
| CN212294763U (en) * | 2020-05-15 | 2021-01-05 | 中建二局第二建筑工程有限公司 | Waterproof stubbles structure that connects in bottom plate post-cast strip |
-
2021
- 2021-09-15 CN CN202111078227.4A patent/CN113756371A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008038426A (en) * | 2006-08-04 | 2008-02-21 | Seibu Polymer Corp | Flexible water stop joint and its construction method |
| WO2014139252A1 (en) * | 2013-03-15 | 2014-09-18 | 中国十七冶集团有限公司 | Method for constructing large raft foundation in high-temperature environment |
| CN206408655U (en) * | 2016-12-15 | 2017-08-15 | 山东科技大学 | The top plate sidewall structure of covered back-digging construction |
| CN110552371A (en) * | 2019-08-30 | 2019-12-10 | 中国一冶集团有限公司 | Construction method for eliminating horizontal construction joints of annular lining wall based on reverse construction method |
| CN212294763U (en) * | 2020-05-15 | 2021-01-05 | 中建二局第二建筑工程有限公司 | Waterproof stubbles structure that connects in bottom plate post-cast strip |
| CN111749326A (en) * | 2020-08-03 | 2020-10-09 | 中建八局第三建设有限公司 | Reverse construction basement side wall construction joint processing structure and processing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202455A1 (en) * | 2022-04-18 | 2023-10-26 | 中国矿业大学 | Single-layer well wall having jointed water-stop structure and grouting system, and construction method therefor |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211207 |
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| WW01 | Invention patent application withdrawn after publication |