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| Study on Ground Pressure Monitoring and Early Warning Technology of Kilometer Well StopeCAI Yongshun1,2,3, GUAN Xiaozhong4, WANG Haiwen4, WU Yafei5, SHI Feng1,2,3 |
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Received:July 25, 2020
Revised:August 13, 2020
Accepted:August 26, 2020
Published Online:October 11, 2021
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| DOI： |
| KeyWord:microseismic monitoring; kilometer well; stope ground pressure; warning precursor |
| Author | Institution |
| CAI Yongshun |
BGRIMM Technology Group |
| GUAN Xiaozhong |
Western Region Gold Co.,Ltd. |
| WANG Haiwen |
Western Region Gold Co.,Ltd. |
| WU Yafei |
Western Gold Karamay Hatu Gold Mine Co., Ltd. |
| SHI Feng |
BGRIMM Technology Group |
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| Abstract: |
| The roof fall, spalling and other ground pressure disasters were easy to occur in the process of deep mining in kilometer well mining area of Hatu Gold Mine, which affected the progress and safety of subsequent mining. The deformation characteristic of surrounding rock was analyzed by the spatiotemporal evolution of microseismic events. The key areas with strong ground pressure activities were divided. The early warning information of rockburst and large-scale rock mass fracture was analyzed based on the variation of cumulative apparent volume and energy index of microseismic events. Some protective measures such as strengthening support were taken in time according to the early warning information, and good results were achieved. |
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