METHOD FOR ROCK BURST PREVENTION BY ACTIVE SUPPORT REINFORCEMENT AND ACTIVE PRESSURE RELIEF
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Issued Date -
Jan 30, 2020
app pub date -
Aug 3, 2018
filing date -
Aug 3, 2018
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Abstract
Disclosed is a method for rock burst prevention by active support reinforcement and active pressure relief. The method comprises the following steps: A. rating a burst tendency based on a comprehensive index method: determining a zone as a general risk region or a mediate risk region by using a comprehensive index method; B. predicting a burst risk region and determining pressure relief borehole parameters in real time by using a drill cuttings method: determining borehole parameters of the general risk region and the mediate risk region; C. drilling holes after determining arrangement patterns of large-diameter pressure relief boreholes according to different burst risk levels; D. forming a “coal wall-bolt-grouting hole sealing” support reinforcement system through a roadway support system; and E. monitoring a pressure relief effect of the support reinforcement system: until a required effect of preventing bursts by pressure relief is achieved while the support is reinforced. The present invention can not only achieve an effect of preventing rock bursts by pressure relief but also enhance the integrity of a coal wall in a roadway excavation process, thereby achieving the objective of rock burst prevention by active support reinforcement and active pressure relief.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CHINA UNIVERSITY OF MINING AND TECHNOLOGY | 221008 ZHAI MOUNTAIN SOUTHERN SUBURBS OF JIANGSU CITY XUZHOU PROVINCE XUZHOU CITY JIANGSU PROVINCE 221008 | |
XUZHOU JINBO SAFETY AND TECHNOLOGY CO LTD | JINGYINGGE 3C-110 NO 16 KAIYUAN ROAD QUANSHAN XUZHOU JIANGSU |
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
LI, Ding | Xuzhou, Jiangsu, CN | 57 | 157 |
LIU, Yang | Xuzhou, Jiangsu, CN | 1677 | 6476 |
LU, Caiping | Xuzhou, Jiangsu, CN | 2 | 0 |
ZHANG, Heng | Xuzhou, Jiangsu, CN | 188 | 1714 |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 30, 2027 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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