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Method for constructing in-situ gravity-type retaining wall on fractured rock slope

A technology of fractured rock mass and structural methods, applied in underwater structures, infrastructure engineering, water conservancy projects, etc., can solve problems such as collapse and easy falling of slopes, and achieve strong weathering resistance, good integrity, and stability sex high effect

Inactive Publication Date: 2018-09-04
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an in-situ gravity-type retaining wall construction method for a fractured rock mass slope, which aims to solve the problem that the slope is easy to fall and collapse locally, and at the same time improve the weathering resistance of the slope rock mass and reduce the traffic on the expressway. security risk

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  • Method for constructing in-situ gravity-type retaining wall on fractured rock slope
  • Method for constructing in-situ gravity-type retaining wall on fractured rock slope
  • Method for constructing in-situ gravity-type retaining wall on fractured rock slope

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specific Embodiment approach

[0040] Such as Figure 1-3 As shown, the embodiment of the present invention provides a method for constructing an in-situ gravity retaining wall on a fractured rock mass slope, including:

[0041] Step 101 , lay out drilling holes on the slope, and lower the grouting conduit 2 in the holes after the drilling is completed.

[0042] Optionally, the grouting conduit 2 is a steel flower pipe.

[0043] Step 102 , using a secondary grouting method to grout through the grouting conduit 2 to form a grouting body 1 .

[0044] Through the secondary grouting method, the in-situ gravity retaining wall structure of the fractured rock mass slope is constructed, which increases the integrity and stability of the in-situ gravity retaining wall structure of the fractured rock mass slope, and reduces the masonry volume , reducing the amount of slope excavation.

[0045] Step 103, laying concrete canvas 3 on the slope.

[0046] The concrete canvas 3 further resists the influence of weatheri...

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Abstract

The invention provides a method for constructing an in-situ gravity-type retaining wall on a fractured rock slope. The method for constructing the in-situ gravity-type retaining wall on the fracturedrock slope comprises the steps that hole drilling sites are arranged on the slope; after holes are drilled, grouting ducts are placed in the holes; grouting is conducted via the grouting ducts througha secondary grouting method, so that grouting bodies are formed; and concrete canvas is laid on the surface of the slope. The in-situ gravity-type retaining wall constructed on the fractured rock slope is good in integrity and high in stability and wind resistance, and chipping and collapse of the slope are avoided; and the masonry size is greatly reduced, and the construction space is saved.

Description

technical field [0001] The invention belongs to the technical field of slope engineering, and more specifically relates to an in-situ gravity retaining wall construction method for a fractured rock mass slope. Background technique [0002] In the seasonally frozen mountainous areas in northern my country, there are more and more cutting rock slopes along the highway. The biggest climatic feature of the seasonally frozen region is that geological bodies experience a freeze-thaw-freeze cycle throughout the year, and even local freeze-thaw cycles exist within a day due to the large temperature difference between day and night. Therefore, the slope rock mass in the permafrost region is extremely vulnerable to weathering, resulting in reduced rock mass integrity and cracks. [0003] The retaining wall structure (such as gravity retaining wall, anchor retaining wall) can not only significantly improve the stability of the slope, but also prevent further weathering of the rock mas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/02
CPCE02D29/02E02D29/0275E02D2250/003
Inventor 袁维王伟李建朋李宗鸿李家欣
Owner SHIJIAZHUANG TIEDAO UNIV