滑坡体临滑声发射监测主机的设计

摘要

基于滑坡体临滑时因岩石断裂、岩石摩擦而产生声发射的特点,提出一种基于声发射监测的滑坡体临滑监测主机的设计方案.系统能监测的声发射频率范围为1Hz～20kHz,能监测的最小声压为0.002Pa.通过安装在滑坡体附近的声发射传感器,连续监测和记录滑坡体临滑时产生的声发射,可用于分析其变化规律和特征,从而实现对滑坡灾害的预测预报.%According to the acoustic emission characteristics of rock fracture and friction in the time of landslide mass critical-sliding, presents an early warning system for landslide mass critical-sliding based on acoustic emission monitoring this paper. The monitoring acoustic emission frequency range is lHz~20kHz,minimum acoustic pressure is 0.002Pa. By putting the pressure field acoustic emission sensor around the landslide mass, the system can monitor and record continuously the acoustic emission produced by critical-sliding landslide mass. These acoustic emission data can be used to study its characteristics and change rules, and realize the prediction of landslide disasters.