Self-adaptive support structure of collapse preventing and treating engineering and method thereof

Abstract

The invention discloses a self-adaptive support structure of collapse preventing and treating engineering and a method thereof. The structure comprises a first steel backing plate, a support column, asecond steel backing plate and a self-adaptive top bracing, wherein the first steel backing plate is arranged at the bottom of a dangerous rock body concave cavity; the support column is located on the first steel backing plate; the second steel backing plate is fixed at the top of the support column; the self-adaptive top bracing is fixed on the second steel backing plate; the top of the self-adaptive top bracing is in contact with the top of the dangerous rock body concave cavity. The invention discloses a reasonable and effective method for collapse preventing and treating engineering. Theself-adaptive support structure of collapse preventing and treating engineering is simple and convenient to construct, short in construction period, low in disturbance on the dangerous rock body andflexible and changeable in construction range, and can achieve the permanent treatment effect; the safety of lives and properties of people in the range affected by the disaster can be ensured.

Description

technical field [0001] The invention belongs to the technical field of geological disaster and collapse prevention engineering, and relates to an adaptive support structure and method for collapse prevention and control engineering. Background technique [0002] Dangerous rock collapse is a common geological disaster in the mountainous areas of western my country, which has the characteristics of wide distribution, large scale, strong suddenness and unpredictability. In particular, Cretaceous sandstone and Jurassic strata are widely developed in eastern Sichuan. Due to the different weathering of sand and mudstone, the concave cavity of dangerous rock mass is formed. According to the latest statistics on geological disasters from the Ministry of Land and Resources, there are more than 100,000 dangerous rock disaster sites in eastern Sichuan, threatening 90,000 households and more than 800,000 people, and threatening property as high as 20 billion yuan. There are more than ...

AI Technical Summary

Problems solved by technology

Due to the large structure and large area of ​​conventional support columns, in order to preserve the traffic passage, the designers often design the position of the support columns too close to the rock wall, without a support outside the center of gravity of the rock, and there is a possibility of further toppling or falling

[0005] 2) Due to the poor stability of the upper rock mass, the perturbation of the dangerous rock mass is too large when the conventional support column is leveling the foundation, which is extremely harmful to the construction personnel in the concave cavity

As a result, the construction of conventional support columns was sloppy, and the support columns did not cling to the upper dangerous rock mass. Instead, cement mortar was used to touch the surface afterwards, and the interior was empty.

[0006] 3) The foundation of conventional support columns is not deep enough, and the foundation is prone to instability due to factors such as vegetation root development and dynamics

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