Filling grouting method for vertical fissures in rock mass near slope

A rock mass and vertical technology, applied in excavation, construction, climate change adaptation, etc., can solve problems that affect construction quality, achieve the effects of accelerating the improvement of ecological environment, good anti-seepage effect, and ensuring the quality of grouting construction

Active Publication Date: 2021-07-13
SAFEKEY ENG TECHZHENGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the current construction is based on the construction experience of the construction personnel. For example, the amount of grouting in the cracks and where to drill holes are very subjective, which affects the construction quality.

Method used

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  • Filling grouting method for vertical fissures in rock mass near slope
  • Filling grouting method for vertical fissures in rock mass near slope
  • Filling grouting method for vertical fissures in rock mass near slope

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Experimental program
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specific Embodiment

[0106] The rock mass is taken as an example of the sandstone block, and the slurry is a high polymer slurry. The high polymer is generally a two-component polyurethane high polymer grouting material with self-expanding characteristics. This high polymer grouting material has its own Expansion characteristics, the free expansion rate in the air can reach 25-30 times.

[0107] For a Pisha sandstone block with vertical cracks on the slope, it is necessary to fill the vertical cracks with polymer grouting to block the infiltration channel of water flow, so as to avoid block-like gravity erosion. The polymer grouting method The implementation steps are as follows:

[0108] A. Design of polymer grouting parameters for vertical fractures in Pisha sandstone, including:

[0109] A1. Determine the geometric dimensions of vertical fissures and sandstone blocks on the facing slope through on-site investigations, mainly including the opening and height of vertical fissures and the cross-s...

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Abstract

The invention discloses a grouting method for filling vertical fissures of a rock mass on a slope face. The method includes: obtaining the opening degree of the vertical fissures of the rock mass on the slope face, the geometric size of the rock mass, the grouting amount of a single hole, and the grouting hole spacing; The vertical crack opening of the rock mass on the slope surface, the geometric size of the rock mass, and the grouting hole spacing, the grouting holes are drilled according to the spacing, and the grouting holes are drilled to the crack surface; the grouting conduit is placed in the grouting hole, and the slurry is filled. This method provides a fast and efficient new way to control the gravitational erosion of rock mass on the slope surface. It has the characteristics of quick construction, short construction period, good anti-seepage effect, and little disturbance to the rock mass, and can realize scientific and precise grouting. To ensure the quality of grouting construction.

Description

technical field [0001] The invention relates to the technical field of rock mass reinforcement, in particular to a grouting method for filling vertical cracks in a rock mass on a slope surface. Background technique [0002] Due to the interaction of wind erosion, water erosion, freeze-thaw and gravity erosion, rocks often present a composite erosion mode. [0003] Massive erosion usually occurs in the rock mass, and there are a large number of vertical fissures, which constitute channels for water to infiltrate. The arsenic sandstone block is completely separated from the parent body, resulting in a tendency of falling and overturning. When it reaches a certain limit state, it will suddenly collapse, forming a block-like gravity erosion. [0004] Collapse of rock masses on slopes often leads to serious consequences. For example, collapse of rock masses on slopes on both sides of the road will interrupt the road, and even endanger the lives and properties of pedestrians. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20
CPCE02D17/20Y02A10/23
Inventor 王复明李晓龙张蓓钟燕辉赵鹏
Owner SAFEKEY ENG TECHZHENGZHOU
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