降雨入渗对浅埋采场稳定性影响的微震监测分析

doi:10.13722/j.cnki.jrme.2015.1153

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摘要简要叙述香炉山钨矿的工程地质背景、开采背景及地压特点，针对2012年以来各年度降雨入渗对该矿采场稳定性影响问题进行微震监测与研究，对降雨入渗诱发采场失稳典型案例和对采场地压活动影响规律进行微震监测量化分析，并对降雨入渗诱发采场失稳机制进行简要分析。结果表明，受降雨入渗影响，采场失稳垮塌前井下微震事件水平明显升高，垮塌区域附近传感器微震水平超预警值；矿山在垮塌后整体上出现了大范围的应力转移与重分布，应力转移到“矿体整体拱形”的周边，并且在应力重分布过程中出现了局部岩体破裂垮塌，在经历近两个月的应力调整后，井下岩体逐渐趋于稳定；井下采场微震事件水平变化具有随降雨量整体上呈周期性变化特点，微震活跃期与雨季降雨之间有一定的滞后期，即说明地压活跃程度随降雨量的增加而增加，降雨入渗是造成香炉山钨矿采场失稳的重要诱因。最后，提出雨季地压灾害防治措施。研究成果对量化评估降雨入渗对浅埋矿山稳定性影响、保障井下安全生产有着重要的意义。

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	彭府华1
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	李庶林3
	冷修宁4
	程超4
	刘冬春4

关键词 ：采矿工程, 降雨入渗, 微震监测技术, 采场稳定性, 监测预警, 量化评估

Abstract：The geological background，mining background and characteristics of ground pressure of Xianglushan Tungsten mine were briefly described. Aiming at the influence of rainfall permeation on stope stability since 2012，a typical case of stope collapse and the law of ground pressure activity influenced by rainfall permeation were quantitatively analyzed by micriseismic monitoring，the mechanism of stope collapse induced by rainfall permeation was briefly analyzed. The results show that，under the influence of rainfall permeation，microseismic events significantly increased，and the events of the sensors nearby the collapse exceed early warning value before stope collapse. A large-scale stress transfer and distribution appears after the stope collapse，and the stress transfers to perimeter of the ore body arch after stope collapse. A lot of rock fractures and collapses appear in the process of stress redistribution，and the rock mass tends to be stable after nearly two months of stress adjustment. The microseismic event level changes with the rainfall as a whole，and will lag behind. This means the ground pressure activity increases with the increase of rainfall，rainfall permeation is an important causes of stope instability. At last，the prevention and control measures of ground pressure disasters were put forward. This study has important significances for the quantitative assessment of the influence of rainfall permeation on shallow stope stability，and ensuring the safety in underground production.

Key words： mining engineering rainfall infiltration microseismic monitoring technology stope stability monitoring and early warning quantitative evaluation

引用本文:

彭府华1，2，李庶林3，冷修宁4，程超4，刘冬春4. 降雨入渗对浅埋采场稳定性影响的微震监测分析[J]. 岩石力学与工程学报, 2016, 35(S2): 4154-4163.
PENG Fuhua1，2，LI Shulin3，LENG Xiuning4，CHENG Chao4，LIU Dongchun4. Study of influence of rainfall permeation on shallow stope stability by microseismic monitoring. , 2016, 35(S2): 4154-4163.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2015.1153 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS2/4154

[1] 孙广忠. 中国典型滑坡[M]. 北京：科学出版社，1998：33–62.(SUN Guangzhong. Typical landslides in China[M]. Beijing：Beijing Science Press，1988：33–62.(in Chinese))

[2] 包承纲. 非饱和土的性状及膨胀土边坡稳定问题[J]. 岩土工程学报，2004，26(1)：1–15.(BAO Chenggang. Behavior of unsaturated soil and stability of expansive soil slope[J]. Chinese Journal of Geotechnical Engineering，2004，26(1)：1–15.(in Chinese))

[3] 汪益敏，陈页开，韩大建，等. 降雨入渗对边坡稳定性影响的实例分析[J]. 岩石力学与工程学报，2004，23(6)：920–924.(WANG Yimin，CHEN Yekai，HAN Dajian，et al. Case study on influence of rainfall permeation on slope stability[J]. Chinese Journal of Geotechnical Engineering，2004，23(6)：920–924.(in Chinese))

[4] MENDECK A J. Seismic monitoring in mines[M]. South Africa：Chapman and Hall，1997：178–185.

[5] 李庶林，尹贤刚，郑文达，等. 凡口铅锌矿多通道微震监测系统及其应用研究[J]. 岩石力学与工程学报，2005，24(12)：2 048–2 053. (LI Shulin，Y1N Xiangang，ZHEN Wenda，et a1. Research of multichannel microseismic monitoring system and its application to Fankou lead-zinc mine[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(12)：2 048–2 053.(in Chinese))

[6] 彭府华，李庶林，程建勇，等. 中尺度复杂岩体应力波传播特性的微震试验研究[J]. 岩土工程学报，2014，36(2)：312–318.(PENG Fuhua，LI Shulin，CHENG Jianyong，et a1. Microseismic-testing study on stress wave propagation characteristic of the meso-scale and complex rock mass[J]. Chinese Journal of Geotechnical Engineering，2014，36(2)：312–318.(in Chinese))

[7] PENG F，LIN F，HU J，et al. Indices of mine microseismic and their application in safety assessment by statistiacl evaluation at Luomu mine[C]// The 13th International Symposium on Rock Mechanics. Montreal，Canada：[s. n.]，2015.

[8] 胡静云，林峰，彭府华，等. 香炉山钨矿残采采区地压灾害微震监测技术应用分析[J]. 中国地质灾害与防治学报，2010，21(4)：109–115.(HU Jingyun，LIN Feng，PENG Fuhua，et al. Research on application of microseismic monitoring technology on ground pressure hazard of residual are in Xianglushan tungsten mine[J]. The Chinese Journal of Geological Hazard and Control，2010，21(4)：109–115.(in Chinese))

[9] 程超，兰晓平，吴水生，等. 香炉山钨矿特大采空区地压微震监测技术应用研究[J]. 中国钨业，2011，21(5)：10–13.(CHENG Chao，LAN Xiaoping，WU Shuisheng，et al. On the microseismic monitoring technology on the ground pressure in the large gob[J]. China Tungsten Industry，2011，21(5)：10–13.(in Chinese))

[10] 兰晓平，胡静云，李庶林，等.大规模采场垮塌多通道微震监测应用研究[J]. 矿业研究与开发，2014，34(7)：35–38.(LAN Xiaoping，HU Jingyun，LI Shulin，et al. Application research on multi-channel of microseismic monitoring for large-scale stope collapse[J]. Mining Research and Development，2014，34(7)：35–38.(in Chinese))

[11] JIHOON R H. PPV-magnitude-distance relationship：need for a site-specific calibration[R]. Kingston：Queen¢s University，2012.

[12] 康红普. 水对岩石的损伤[J]. 水文地质工程地质，1994，(3)：39–40.(KANG Hongpu. The water damage on the rocks[J]. Hydrogeology and Engineering Geology，1994，(3)：39–40.(in Chinese))

[13] 朱珍德，胡定. 裂隙水压力对岩体强度的影响[J]. 岩土力学，2000，21(1)：64–67.(ZHU Zhende，HU Ding. The effect of interstitial water pressure on rock mass strength[J]. Chinese Journal of Geotechnical Engineering，2000，21(1)：64–67.(in Chinese))