Temporary grouting corridor and its construction method

A technology of grouting corridors and construction methods, which is applied in the direction of infrastructure engineering and construction, can solve problems such as time-consuming months, and achieve the effects of solving contradictions, shortening the straight-line construction period, and high reliability

Active Publication Date: 2017-05-31
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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Problems solved by technology

When large-scale geological defects appear in the riverbed, if conventional methods are used for replacement and grouting, the dam concrete can only be poured after the geological defects are treated. This process will take several months. , would be unacceptable

Method used

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  • Temporary grouting corridor and its construction method

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention.

[0020] Such as figure 1 As shown, the temporary grouting corridor involved in the present invention includes a foundation surface 1 and a replacement body 2. A replacement excavation space 4 is provided below the foundation surface 1 of the dam 3, and the replacement excavation space 4 faces the riverbed. The geological defect and its influence zone 5 extend, a grouting corridor 6 is reserved in the replacement excavation space 4, and the replacement body 2 is cast in the replacement excavation space 4, and the grouting corridor 6 outer. The replacement excavation space 4 must be located at the exposed part of the geological defect and its influence zone 5 in the river bed, below the foundation surface 1, a...

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Abstract

The invention relates to the technical field of hydraulic and hydro-power engineering, in particular to a temporary grouting gallery and a construction method thereof. The temporary grouting gallery comprises a foundation surface and a replacement body. Replacement excavation space is arranged below the foundation surface of a dam and stretches to the geological flaw and influence zone of a riverbed portion, a grouting gallery body is reserved in the replacement excavation space, and the replacement body is poured into the replacement excavation space and outside the grouting gallery body. The temporary grouting gallery is arranged on the geological flaw portion and influence zone below the foundation surface, the contradiction between the construction period and geological flaw treatment is effectively avoided, and the linear construction period of a project is greatly shortened. The temporary grouting gallery of the structure is simple in structure and high in operability and reliability.

Description

Technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a temporary grouting gallery at a geological defect in a river bed and a construction method thereof. Background technique [0002] The commonly used methods for the treatment of geological defects in the dam foundation surface of water conservancy and hydropower projects are replacement and grouting. When the location of the fault exposed is high, the conventional treatment methods can complete the geological defect treatment well. When a large geological defect occurs in the river bed, if the conventional method is used for replacement and grouting, the dam concrete can only be poured after the geological defect is processed. This process will take several months. This is for large water conservancy and hydropower projects. , Will be unacceptable. Therefore, the treatment method for geological defects in the river bed needs to be improved. Summ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D15/06
Inventor 唐虎王仁坤周钟饶宏玲潘晓红唐忠敏
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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