
针对浅埋隧洞围岩塌方灾害难以有效预警的问题,对微震传感器的多断面分散式布置方式、微震传感器的锚杆端安装方案、微震监测信号的高效降噪与智能识别方法、塌方灾害预警的风险管理等级标准、微震监测信号的云端智能分析平台以及基于微震监测的塌方智能预警系统等若干关键技术进行了研究,并应用于广西那板水库新建1号灌溉发电放水系统引水隧洞工程。结果表明,所研发的关键技术是可行的,可解决已有微震监测技术不完全适用于浅埋隧洞破碎围岩的局限性问题,能有效提高隧洞塌方微震监测与预警的实时性与工作效率,并结合工程案例给出了基于微震特征参数的隧洞塌方前兆特征。
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