高边坡稳定性微震远程在线监测系统构建及应用  

Construction and Application of Remote On-line Microseismic Monitoring System for High Slope Stability

作　　者：刘梁 鄢毛毛 刘攀飞 Liu Liang;Yan Maomao;Liu Panfei(The Fifth Geological Brigade of Jiangxi Geological Bureau,Xinyu,China)

机构地区：[1]江西省地质局第五地质大队,江西新余

出　　处：《科学技术创新》2023年第2期159-162,共4页Scientific and Technological Innovation

摘　　要：高边坡失稳是内部岩体微破裂不断发生,由量变引起质变的结果,即岩体微破裂信号是边坡失稳的前兆信息。岩体微破裂会释放能量,且以弹性波的方式向四周传播。基于此,通过构建基于4G信号传输的高灵敏度、宽频带、低本底噪声的微震监测系统,实时采集、分析岩体微破裂信号,获得潜在滑动面的空间位置,超前分析边坡变形失稳破坏前的动态特征与发展趋势,评估高边坡健康状态。相比于常规的变形和应力监测,该方法具有边坡失稳预警超前性和区域广泛性,实现了智能化、远距离、实时的边坡稳定性动态监测预警。The instability of high slope is the result of the continuous occurrence of microfracture of internal rock mass and the qualitative change caused by quantitative change, that is, the microfracture signal of rock mass is the precursor information of slope instability. Microfracture of rock mass releases energy and propagates around in the form of elastic waves. Based on this, constructs a microseismic monitoring system with high sensitivity, wide band and low background noise based on 4G signal transmission to collect and analyze microfracture signals of rock mass in real time, obtain the spatial location of potential sliding surface,analyze the dynamic characteristics and development trend before slope deformation, instability and failure,and evaluate the health state of high slope. Compared with the conventional deformation and stress monitoring, this method has the advantage of advanced warning and regional wide warning of slope instability,and realizes intelligent, remote and real-time dynamic monitoring and warning of slope stability.

关 键 词：边坡稳定性 岩体微破裂信号 4G 微震远程在线监测系统 

分 类 号：TU457[建筑科学—岩土工程]