Fault-passing roadway waterproof damping and shock-resisting coupling support method

Abstract

The invention belongs to the technical field of mining shock-resisting supporting and particularly relates to a fault-passing roadway waterproof damping and shock-resisting coupling support method. The fault-passing roadway waterproof damping and shock-resisting coupling support method includes sequentially setting a surrounding rock plastic ring, a damping support ring and two layers of tiles from surrounding rocks of the fault to a roadway, forming the surrounding rock plastic ring by the surrounding rocks in an artificial blasting manner, and paving cement-based glass fibers on the inner surface of the surrounding rock plastic ring to form the damping support ring; paving two layers of the tiles on the inner surface of the damping support ring, wherein the tiles on the outer layer is outer waterproof tiles, and the tiles on the inner layer are inner tiles; enabling an anchorage rod to be perpendicular to the outlines of the tiles and sequentially penetrate the tiles, the damping support ring and the middle of the surrounding rock plastic ring to form a fixed coupling, and paving ballasts on the ground of the roadway and the upper surfaces of the tiles. By the method, support intensity is high, buffering and damping and shock resistance are high, and waterproof effect is good.

Description

technical field [0001] The invention belongs to the technical field of anti-scour support for mines, and in particular relates to a water-proof, shock-absorbing, anti-scour coupling support method for roadways crossing faults. Background technique [0002] With the gradual development of coal mine resource mining in my country, the frequency of rock bursts is increasing, and its hazards are also increasing, causing roadway surrounding rock damage, collapse and casualties, which have caused great harm to coal mine safety production. Hazard: Once underground rock burst occurs, it will cause deformation of the roadway, roof collapse, bottom drum, destroy the support, block the roadway and even close the roof and floor, thus affecting the ventilation or overturning the equipment, causing production interruption, and may also cause personal injury to the operators. , and even cause fatal accidents; therefore, the safety support of surrounding rock in rock burst roadways has become ...

AI Technical Summary

Problems solved by technology

These support methods mainly realize the role of bearing the upper load by enhancing the strength of the surrounding rock mass or improving the bearing capacity of the support itself, and consider the defensive measures and methods when the roadway is impacted under static conditions; The supporting capacity is relatively strong, but the control force on the two sides and the bottom plate is relatively weak. The floor of the roadway is drummed and the convergence speed is very fast. Environment, when fault sliding occurs rock burst, it is easy to cause the roadway section to suddenly shrink or even close due to the convergence of the two gangs and a large number of floor drums, posing a threat to the safety of equipment and personnel, and even interrupting the ventilation system, causing a large amount of gas to accumulate and causing major accidents

[0005] The traditional support method is limited to improve the bearing capacity of the support structure, let alone bear the impact of strong dynamic loads in the deep mining process. When passing through faults, the surrounding rock loses continuity, and sliding-type rock bursts are prone to occur. Large water content, prone to water seepage accidents, submerged shafts and mining equipment, resulting in casualties and property losses; It can fundamentally solve the problem of serious damage to the surrounding rock of the roadway under the action of strong impact load, without considering the effect of support and surrounding rock under the impact force, from the perspective of waterproofing and water control, and from the perspective of buffering and damping. The support method is to weaken and reduce the impact load, and the goal of safe support for the impact rock roadway is not achieved by buffering the load and enhancing the strength of the support structure

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