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Stope Stability Analysis Based on Monitoring of Surrounding Rock Stress and Vibration
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Wenjie MAO1, Guoyan ZHAO1, Xi WANG2, Liqiang CHEN1, Chengkai DANG1
Mining and Metallurgical Engineering | 2023, 43(2) : 1 - 4
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Mining and Metallurgical Engineering | 2023, 43(2): 1-4
• MINING •
Stope Stability Analysis Based on Monitoring of Surrounding Rock Stress and Vibration
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Wenjie MAO1, Guoyan ZHAO1, Xi WANG2, Liqiang CHEN1, Chengkai DANG1
Affiliations
  • 1.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
  • 2.Deep Mining Laboratory Subsidiary of Shandong Gold Mining Technology Co Ltd, Laizhou 261400, Shandong, China
Published: 2023-04-01 doi: 10.3969/j.issn.0253-6099.2023.02.001
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A self-designed multi-functional rod was adopted to provide a real-time monitoring of surrounding rock stability during the excavation of a metal mine, and the variations of vertical stress of rock stratum and surrounding rock vibration occurrence within the monitoring range of the multi-functional rod during stoping were all recorded. It is found that the stress and peak ground velocity of the surrounding rock are all trending up as excavation area increases, which reflects that more fractures occur inside the surrounding rock, leading to lower degree of stability for the surrounding rock, and the excavation damage zone (EDZ) goes deeper. As for mines supported by top threaded anchor bolts, the EDZ evolution process and caving of rock mass can be more effectively controlled when the thread length of rod is greater than the depth of EDZ. After one month's mining of this stope, it is found that the vertical stress of the rock stratum within the monitoring length of the multifunctional rod increases by 3.9 MPa due to the subsidence of the stratum, and the frequency of vibration occurrence meets the blast vibration standard for safety permit in China. It is shown that the surrounding rock has a good stability based on the comprehensive evaluation.

metal mines  /  surrounding rock  /  stress  /  ground pressure monitoring  /  multifunctional monitoring rod  /  vibration signal  /  excavation damage zone (EDZ)  /  stope stability
Wenjie MAO, Guoyan ZHAO, Xi WANG, Liqiang CHEN, Chengkai DANG. Stope Stability Analysis Based on Monitoring of Surrounding Rock Stress and Vibration[J]. Mining and Metallurgical Engineering, 2023 , 43 (2) : 1 -4 . DOI: 10.3969/j.issn.0253-6099.2023.02.001
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.02.001
  • Receive Date：2022-09-22
  • Online Date：2026-03-05
  • Published：2023-04-01
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  • Received：2022-09-22
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Affiliations
    1.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
    2.Deep Mining Laboratory Subsidiary of Shandong Gold Mining Technology Co Ltd, Laizhou 261400, Shandong, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2023.02.001
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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