Impact-resistant combined anti-pressure supporting system

Abstract

The invention discloses an impact-resistant combined anti-pressure supporting system which is characterized by comprises a three-grade supporting system; and the impact-resistant combined anti-pressure supporting system has the advantages that: (1) by an optimized three-grade supporting manner, the maintenance amount of engineering roadways is reduced, the coal mining rate and the recovery ratio of a working face are increased, the safety coefficient is enlarged, and the comprehensive benefits of a mine are increased; (2) by applying a combined supporting system technology, the deformation of the roadway is effectively controlled when the working face is influenced by the ground pressure; and when the rock burst generates during production, the system plays a role of impact-resisting, realizes shrinkage and buffering changes and protects the safety of equipments and operators; and (3) according to the supporting system during recovery, dynamic alternatively circulative operation is realized, thus the purposes of resisting impaction, removing pressure and solving danger are realized, the construction process is simplified, various costs are saved, the quality is easy to control, the economic benefit is remarkable, the social benefit is also gained at the same time, and the competition among enterprises is improved.

Description

technical field [0001] The invention relates to a coal mine safety protection equipment system, in particular to an anti-shock composite compression support system. Background technique [0002] The domestic coal mine mining face support mode adopts a single support mode, and there is a lack of more accurate methods for rock burst prediction. By analyzing the correlation between the stress state of coal and rock mass and the risk of impact, it can be known that the impact of mining stress on rock burst It is obvious that the mining stress field and its characteristics play an important role in the assessment of the coal rock burst risk, and only passive joint support systems can be adopted to ensure that the hazard of rock burst is minimized. [0003] The technical characteristics of impacting dangerous coal seams in foreign countries also focus on strengthening the monitoring of support and impact energy. [0004] Single I-shaped steel shed support and anchor rod, anchor n...

AI Technical Summary

Problems solved by technology

[0002] The domestic coal mine mining face support mode adopts a single support mode, and there is a lack of more accurate methods for rock burst prediction. By analyzing the correlation between the stress state of coal and rock mass and the risk of impact, it can be known that the impact of mining stress on rock burst It is obvious that the mining stress field and its characteristics play an important role in the assessment of the coal rock burst risk, and only a passive joint support system can be adopted to ensure that the hazard of rock burst is minimized

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