深埋隧洞TBM掘进微震与岩爆活动规律研究OA北大核心CSCDCSTPCD
Activity laws of microseisms and rockbursts in deep tunnels by TBM tunneling
以锦屏二级水电站TBM开挖的深埋隧洞为工程背景,基于微震监测数据和岩爆实例,研究了深埋隧洞TBM掘进过程中微震与岩爆时空分布特征及岩爆孕育过程微震演化规律.结果表明:①微震活跃期和岩爆高发期处于TBM作业时段及停机后的1 h以内;微震活动范围主要介于掌子面后方3倍洞径至前方0.4倍洞径之间,其峰值位于掌子面后方0.8倍洞径附近;而岩爆主要发生在掌子面后方2倍洞径以内,尤其是掌子面后方1倍洞径以内是岩爆高发区;可见,微震与岩爆具有良好的时空相关性.…查看全部>>
For the deep tunnel of Jinping Ⅱ Hydropower Station excavated by TBM, based on the seismic monitoring data androckbursts, the temporal and spatial distribution characteristics of microseismic events and rockbursts and evolution laws of microseismicity information during the preparation process of rockbursts are studied. The conclusions are drawn as follows: (1)The active period of microseisms and the peak period of rockbursts are the working time and within …查看全部>>
赵周能;冯夏庭;陈炳瑞
西南科技大学环境与资源学院,四川绵阳 621010东北大学资源与土木工程学院,辽宁沈阳 110004东北大学资源与土木工程学院,辽宁沈阳 110004
建筑与水利
岩石力学深埋隧洞微震岩爆隧道掘进机(TBM)
rock mechanicsdeep tunnelmicroseismicityrockbursttunnel boring machine
《岩土工程学报》 2017 (7)
近场岩爆辐射能模型及支护系统可靠度评价研究
1206-1215,10
国家自然科学基金国际合作重大项目(41320104005)国家自然科学基金项目(51479192)西南科技大学博士研究基金项目(14zx7106)
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