Title:
RELEASING-CRACKING-SUPPORTING COOPERATIVE BURST PREVENTION METHOD BASED ON COAL BODY PRESSURE RELIEF AND ROOF PRE-CRACKING
Document Type and Number:
WIPO Patent Application WO/2023/201906
Kind Code:
A1
Abstract:
The present invention relates to the technical field of coal mine rock burst prevention and control, and provides a releasing-cracking-supporting cooperative burst prevention method based on coal body pressure relief and roof pre-cracking. The releasing-cracking-supporting cooperative burst prevention method based on coal body pressure relief and roof pre-cracking of the present invention comprises the following steps: step 1, pressure relief by driving into a coal seam; step 2, pre-cracking of a low-position roof during driving; step 3, supporting of roadway surrounding rocks and supporting reinforcement; step 4, pressure relief of a roadway floor; step 5, pre-cracking of a high-position roof before mining of a working face; and step 6, advance pressure relief and supporting of the roadway surrounding rocks during stoping of the working face. According to the releasing-cracking-supporting cooperative burst prevention method based on coal body pressure relief and roof pre-cracking of the present invention, local pressure relief, roof pre-cracking and supporting reinforcement construction are progressively performed in all periods of the stoping working face of a coal mine, thereby preventing and controlling the rock burst of the stoping working face.
Inventors:
GUO WEIYAO (CN)
CHEN LEXIN (CN)
TAN YAN (CN)
TAN YUNLIANG (CN)
ZHAO TONGBIN (CN)
CHEN LEXIN (CN)
TAN YAN (CN)
TAN YUNLIANG (CN)
ZHAO TONGBIN (CN)
Application Number:
PCT/CN2022/104933
Publication Date:
October 26, 2023
Filing Date:
July 11, 2022
Export Citation:
Assignee:
UNIV SHANDONG SCIENCE & TECH (CN)
International Classes:
E21C41/18; E21F17/18
Foreign References:
| CN102220866A | 2011-10-19 | |||
| CN112282806A | 2021-01-29 | |||
| CN113107490A | 2021-07-13 | |||
| CN111608663A | 2020-09-01 | |||
| CN110700883A | 2020-01-17 | |||
| CN111720139A | 2020-09-29 | |||
| AU2021106168A4 | 2021-10-28 |
Other References:
LI, SHIJIN; DUAN, XIAO-PING: "Study on Technology of Driving And Anti Rockburst in Deep And Extra Thick Seam of Zhangshuanglou Coal Mine", COAL SCIENCE & TECHNOLOGY MAGAZINE, no. 1, 25 February 2020 (2020-02-25), pages 82 - 85, XP009550024, ISSN: 1008-3731, DOI: 10.19896/j.cnki.mtkj.2020.01.027
Attorney, Agent or Firm:
QINGDAO JINJIA PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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