深埋地下厂房微震监测系统及其工程应用

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摘要猴子岩水电站地下厂房水平埋深280～510 m，垂直埋深400～660 m，属于典型深埋地下厂房，山体地应力高，地质条件复杂。为监测和分析地下厂房开挖过程围岩的稳定性，识别和圈定围岩潜在的破坏失稳区域，2013年4月安装加拿大ESG微震监测系统。采用声波仪测定地下厂房岩体波速的范围，并结合爆破试验方法计算得到微震监测系统整体等效P波波速为5 700 m/s，系统定位误差小于10 m。对拾取的微震事件波形手动处理，提高定位精度，并剔除干扰事件。通过地质资料分析和现场踏勘，微震活动性时空分布演化规律揭示并圈定猴子岩水电站地下厂房围岩微破裂集中区域及其潜在失稳风险区域。研究结果可为猴子岩水电站地下洞室群后期开挖和支护提供参考，也为类似开挖强卸荷作用下深埋地下洞室围岩稳定性评价提供一条新的研究思路。

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关键词 ：水利工程, 猴子岩水电站, 深埋地下厂房, 微震监测, 围岩稳定性, 预测

Abstract：The underground powerhouse of Houziyan hydropower station is a typical deep-buried powerhouse with the depths of 280–510 m horizontally and 400–660 m vertically. The ground stress is high and the geological conditions are very complicated. In order to monitor and analyze the surrounding rock mass stability during continuous excavation of underground powerhouse and locate the potential instability failure areas，an ESG (engineering seismology group) microseismic monitoring system manufactured in Canada was installed in April，2013. The wave velocity range of rock mass in underground powerhouse was measured by digital acoustic instrument. The overall equivalent wave velocity of P wave was 5 700 m/s in monitoring system which was determined through several blasting tests. The seismic source location error was less than 10 m. The microseismic event waveforms were manually processed to acquire high position accuracy and the interference events were filtered out. On the basis of geological conditions and field observation，micro-fracture clustering areas of surrounding rock mass and the potential instability risk areas in the underground powerhouse of Houziyan hydropower station were revealed and delineated by the tempo-spatial evolution laws of microseismicity. Results could provide some references for later excavations and supports in the underground powerhouse of Houziyan hydropower station. Furthermore，a new research idea is opened up for the stability analysis of deep-buried underground powerhouse subjected to excavation-induced unloading.

Key words： hydraulic engineering Houziyan hydropower station deep-buried underground powerhouse microseismic monitoring surrounding rock mass stability prediction

收稿日期: 2013-07-18

引用本文:

李彪1，戴峰1，徐奴文1，朱永国2，沙椿3，肖培伟2，何刚3. 深埋地下厂房微震监测系统及其工程应用[J]. 岩石力学与工程学报, 2014, 33(sl): 3375-3383.
LI Biao1，DAI Feng1，XU Nuwen1，ZHU Yongguo2，SHA Chun3，XIAO Peiwei2，HE Gang3. MICROSEISMIC MONITORING SYSTEM AND ITS ENGINEERING APPLICATIONS OF DEEP-BURIED UNDERGROUND POWERHOUSE. , 2014, 33(sl): 3375-3383.

链接本文:

http://www.rockmech.org/CN/Y2014/V33/Isl/3375

[6]	唐礼忠，汪令辉，张君，等. 大规模开采矿山地震视应力和变形与区域性危险地震预测[J]. 岩石力学与工程学报，2011，30(6)： 1 168-1 178.(TANG Lizhong，WANG Linghun，ZHANG Jun，et al. Seismic apparent stress and deformation in a deep mine under large-scale mining and areal hazardous seismic prediction[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(6)：1 168- 1 178.(in Chinese)) " target="_blank">
[12]	陈炳瑞，冯夏庭，曾雄辉，等. 深埋隧洞TBM掘进微震实时监测与特征分析[J]. 岩石力学与工程学报，2011，30(2)：275-283. (CHEN Bingrui，FENG Xiating，ZENG Xionghui，et al. Real-time microseismic monitoring and its characteristic analysis during TBM tunneling in deep-buried tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(2)：275-283.(in Chinese))
[16]	张伯虎，邓建辉，周志辉，等. 大岗山水电站厂房断层控制区域微震监测分析[J]. 岩土力学，2012，33(增2)：213-218.(ZHANG Bohu，DENG Jianhui，ZHOU Zhihui，et al. Analysis of monitoring microseism in areas controlled by faults near powerhouse in Dagangshan hydropower station[J]. Rock and Soil Mechanics，2012，33(Supp.2)：213-218.(in Chinese)) " target="_blank">
[4]	唐礼忠，杨承祥，潘长良. 大规模深井开采微震监测系统站网布置优化[J]. 岩石力学与工程学报，2006，25(10)：2 036-2 042. (TANG Lizhong，YANG Chengxiang，PAN Changliang. Optimization of microseismic monitoring network for large-scale deep well mining[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(10)：2 036-2 042.(in Chinese)) " target="_blank">
[8]	徐奴文，唐春安，沙椿，等. 锦屏I级水电站左岸边坡微震监测系统及其应用研究[J]. 岩石力学与工程学报，2010，29(5)：915-925.(XU Nuwen，TANG Chun?an，SHA Chun，et al. Microseismic monitoring system establishment and its engineering applications to left bank slope of Jinping I hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(5)：915-925.(in Chinese))
[11]	XU N W，DAI F，LIANG Z Z，et al. The dynamic evaluation of rock slope stability considering the effects of microseismic damage[J]. Rock Mechanics and Rock Engineering，2014，47：621-642. " target="_blank">
[14]	明华军，冯夏庭，陈炳瑞，等. 基于矩张量的深埋隧洞岩爆机制分析[J]. 岩土力学，2013，34(1)：163-173.(MING Huajun，FENG Xiating，CHEN Bingrui，et al. Analysis of rockburst mechanism for deep tunnel based on moment tensor[J]. Rock and Soil Mechanics，2013，34(1)：163-173.(in Chinese)) " target="_blank">
[1]	MENDECKI A J. Seismic monitoring in mines[M]. London：Chapman and Hall Press，1996：275. " target="_blank">
[2]	YANG C X，LUO Z Q，HU G B，et al. Application of a microseismic monitoring system in deep mining[J]. Journal of University of Science and Technology Beijing，2007，14(1)：6-8. " target="_blank">
[3]	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，YIN Xiangang，ZHENG Wenda，et al. Research of multi-channel microseismic monitoring system and its application to FankouLead-zinc mine[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(12)：2 048-2 053.(in Chinese)) " target="_blank">
[5]	杨志国，于润沧，郭然，等. 微震监测技术在深井矿山中的应用[J]. 岩石力学与工程学报，2008，27(5)：1 066-1 073.(YANG Zhiguo，YU Runcang，GUO Ran，et al. Application of microseismic monitoring to deep mines[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(5)：1 066-1 073.(in Chinese)) " target="_blank">
[7]	孙建，王连国，唐芙蓉，等. 倾斜煤层底板破坏特征的微震监测[J]. 岩土力学，2011，32(5)：1 589-1 595.(SUN Jian，WANG Lianguo，TANG Furong，et al. Microseismic monitoring failure characteristics of inclined coal seam floor[J]. Rock and Soil Mechanics，2011，32(5)：1 589-1 595.(in Chinese)) " target="_blank">
[9]	XU N W，TANG C A，LI L C，et al. Microseismic monitoring and stability analysis of the left bank slope in Jinping first stage hydropower station in southwestern China[J]. International Journal of Rock Mechanics and Mining Sciences，2011，48(6)：950-963.
[10]	XU N W，TANG C A，LI H，et al. Excavation-induced microseismicity：microseismic monitoring and numerical simulation[J]. Journal of Zhejiang University SCIENCE A：Applied Physics and Engineering，2012，13(6)：445-460. " target="_blank">
[13]	赵周能，冯夏庭，陈炳瑞，等. 深埋隧洞微震活动区与岩爆的相关性研究[J]. 岩土力学，2013，34(2)：491-497.(ZHAO Zhouneng，FENG Xiating，CHEN Bingrui，et al. Study of relativity between rockburst and microseismic activity zone in deep tunnel[J]. Rock and Soil Mechanics，2013，34(2)：491-497.(in Chinese)) " target="_blank">
[15]	张伯虎，邓建辉，高明忠，等. 基于微震监测的水电站地下厂房安全性评价研究[J]. 岩石力学与工程学报，2012，31(5)：937-944. (ZHANG Bohu，DENG Jianhui，GAO Mingzhong，et al. Safety evaluation research based on microseismic monitoring in underground powerhouse of hydropower station[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(5)：937-944.(in Chinese))