Impact-resistant combined anti-pressure supporting system

An anti-shock and support shed technology, applied in the direction of temporary shields, pillars/supports, mining equipment, etc., can solve the problem of lack of accurate methods of impact ground pressure, etc., to improve the competitiveness of enterprises, easy quality control, and win the society. effect of benefit

Inactive Publication Date: 2011-09-14
义马煤业集团股份有限公司跃进煤矿
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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

Method used

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  • Impact-resistant combined anti-pressure supporting system
  • Impact-resistant combined anti-pressure supporting system
  • Impact-resistant combined anti-pressure supporting system

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention will be further described:

[0022] The anti-shock composite compression support system is characterized in that it includes a three-level support system. The three-level protection system includes a first support system directly adjacent to the coal rock formation, and a second support system closely connected with the first support system. support system, and the innermost third support system connected with the second support system.

[0023] like figure 1 As shown: the first-level support system is: the roadway mining for coal mining is trapezoidal, anchor cables 2 and anchor rods 1 are arranged on the upper side 3 and the top of the roadway, and anchor rods 1 are arranged on the lower side 4 of the roadway. Anchor rod 1, anchor rod 1 and anchor cable 2 support adopt the principle of extruded combined arch and extruded combined curved beam, and the medicine roll is matched with anchor rod 1 and a...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D21/00E21D19/00E21D15/44
Inventor 宋录生刘军韩玉鉴何玉龙陈广强张银亮李丰王传生赵矿伟茹化民韩雅芳
Owner 义马煤业集团股份有限公司跃进煤矿
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