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深埋隧道地压多通道微震监测技术应用研究
Authors
李庶林
胡静云
高真平
黄波
Publication date
15 September 2016
Publisher
Abstract
针对北武夷山隧道大埋深、大跨度、多头掘进汇合处的高地应力以及可能诱发的岩爆灾害等问题,采用全数字型多通道微震监测技术开展监测和预警研究。提出了结合微震事件率倍比、微震能量倍比与微震定位事件簇群密度三个参数的综合预警方法,首次将微震事件率倍比与微震能量倍比两个微震参数应用于铁路隧道岩爆动力破坏监测预警中,首次根据各微震参数的理论意义与专家经验提出不同参数在岩爆发生概率中的权重值,把各参数的预警指标与隧道埋深和围岩分级联系起来,制定了基于多微震参数的岩爆发生概率的综合定量评分体系。该研究在实际监测应用中多次对岩爆进行了有效的监测预警,对安全施工起到了很好的指导作用
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Last time updated on 10/06/2020