A method for prevention and control of downhole rockburst

Abstract

The invention discloses a prevention and control method for downhole rockburst. The method comprises the following steps that an interference reduction area is reserved between a protection area and arecovery area; an anti-interference groove which is parallel to the axis of the protection area is formed in a top plate of the interference reduction area. According to the prevention and control method for downhole rockburst, with the theory of a rockburst mechanism as a basis, with a main influence factor of downhole rockburst as a staring point, it is put forward that the construction efficiency can be effectively improved on the premise of guaranteeing the safety of downhole construction; the anti-interference groove is easy to operate, quick to implement and convenient to form; the implementation cost of the anti-interference groove is lower than that of supporting and protection only with surrounding rock. According to the prevention and control method for downhole rockburst, withthe rockburst theory as the basis, the anti-interference groove is easy to operate, quick to implement and convenient to form, the working efficiency is improved, the construction safety is also guaranteed, the supporting and protection input of a mine is better lowered, and the method has high practicability.

Description

technical field [0001] The invention belongs to the technical field of mining engineering, and in particular relates to an underground rock burst prevention method. Background technique [0002] Rockburst is a dynamic instability phenomenon in which the surrounding rock is suddenly destroyed due to the excavation of the deep buried rock mass, which destroys the mechanical balance of the surrounding rock, and the stress is concentrated in a short time, accompanied by the explosive release of the accumulated strain energy of the rock. . There are many manifestations of rockbursts, including bursting and peeling, ejection, large-scale collapse and even mine earthquakes, etc., which often cause casualties and damage to construction equipment. [0003] With the gradual depletion of shallow mineral resources, mining enterprises have to mine in the middle and deep underground. Due to the increase of mining depth, rockburst problems caused by complex geological environments such a...

AI Technical Summary

Problems solved by technology

The treatment of mine rockburst needs to consider the mining vacancy, the mining method of the mine, and the delayed impact of rockburst caused by the disturbance of the nearby surrounding rock caused by the mining of the adjacent mine.

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