Setting method of rock mass anchorage on slope face

Abstract

The invention discloses a rock mass anchorage setting method on a slope face. The method includes: obtaining the geometric size of the rock mass near the slope face to be measured and the vertical crack opening degree of the rock mass near the slope face; The required number of anchor holes, the distance between anchor holes and the length of the anchor rod body are calculated according to the opening degree of the vertical crack. This method can effectively reduce the subjectivity and experience of rock mass anchorage setting, and the anchorage setting method can be used to guide the realization of rock mass anchorage grouting on the slope surface, realizing the scientific and refined anchorage reinforcement, and ensuring the quality of anchorage reinforcement Lay a good foundation.

Description

technical field [0001] The invention relates to the technical field of rock mass reinforcement, in particular to a rock mass anchorage setting method on a slope face. 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 body is completely separated from the parent body, which tends to fall and overturn. When it reaches a certain limit state, it collapses suddenly, 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. [0005] Taking Pisha as an example: there is a spec...

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Problems solved by technology

[0009] The white arsenic sandstone overturned, and the collapse was mainly because the red arsenic sandstone at the lower end of the white arsenic sandstone was weathered and could not support the white arsenic sandstone, and the white arsenic sandstone and the main white arsenic sandstone produced vertical cracks, resulting in white arsonites on the slope. arsenic sandstone collapse

[0010] Reinforcement of arsenic sandstone is one of the important measures to control water and soil erosion. Nowadays, barbed wire mesh is generally used to enclose the rock mass to prevent it from collapsing; there is also a method of cement anchorage, but the anchor body of cement anchorage is cement mortar. Water is the main component of cement mortar, which will damage the structure of the sandstone, seriously weakening the anchoring effect or even completely losing the anchoring effect, and the current construction is mostly based on the construction experience of the construction personnel, which has a lot of subjectivity

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