Self-anchored emergency anchor rod and installation method thereof

Abstract

The invention discloses a self-anchored emergency anchor rod. The anchor rod consists of a central rod, a spacing ring, an anchoring nut, a movable bearing plate with a central hole, a fixing bearing plate, an anchoring steel sheet and a connecting steel sheet, wherein the connecting steel sheet jacks up the anchoring steel sheet and makes the anchoring steel sheet tightly contact with an anchoring eye wall by screwing in the anchoring nut. The invention also discloses a method for installing the self-anchored emergency anchor rod. The self-anchored emergency anchor rod and the installation method have the advantages of tightly and intensively contacting the anchor rod with the anchor eye wall and improving the shearing strength between the self-anchored emergency anchor rod and the anchor eye wall so as to realize the emergency reinforcement and fast treatment of treated objects.

Description

technical field [0001] The invention relates to an emergency treatment technology for dangerous rocks, in particular to a self-anchor type emergency bolt and an installation method thereof. Background technique [0002] my country is a mountainous country, with mountains and hills accounting for more than 2 / 3 of the total land area. It is one of the countries with the most developed dangerous rock collapse disasters in the world, especially in western regions such as Tibet, Sichuan, Gansu, Xinjiang, Yunnan, and Chongqing. , There are hundreds of millions of dangerous rock masses with serious safety hazards along highways, mines, and urban areas, and their sudden instability and collapse are the root causes of extremely serious landslide disasters in my country. With the vigorous development of my country's western region, transportation, mines and urban infrastructure have been rapidly developed. Emergency treatment of dangerous rocks and reinforcement of diseased civil engin...

AI Technical Summary

Problems solved by technology

The support, anchorage, support-anchor combination, removal, stone-blocking net, stone-blocking wall, stone-blocking fence, drainage and other dangerous rock prevention and control technologies developed so far are all permanent treatment technologies, which need to follow the principles of survey, feasibility analysis, and preliminary design. , Construction drawing design and construction and other complex construction procedures, the treatment preparation time can be as long as more than 3 months, and the construction period can be as long as more than 1 year; For scaffolding with a height of one meter, the traditional bolt needs high-strength concrete mortar as the anchor material between the bolt and the surrounding rock, and it is difficult to transport the mortar and concrete at high altitude

Therefore, the treatment of high-level dangerous rocks has always been an engineering behavior with high technical difficulty. The construction of the treatment project is difficult and the construction period is long, which does not meet the needs of emergency disaster reduction; Technology is very backward

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