In order to grasp the real-time state and changes of of geological disasters in the Xiangshui Coal Mine,real-time monitoring of all element data of the landslide body is carried out.A set of mountain geological hazard monitoring technology based on MEMS three-axis acceleration sensors and MEMS gyroscopes was proposed,revealing the key technical principles.The key parameters of monitoring errors were analyzed,and an error correction model was established.Calibration test steps were formulated,and the results were verified in engineering cases.The results of engineering application tests show that after temperature error correction,the accuracy of the system can reach 0.2 mm,the resolution and sensitivity are better than 0.1 mm,the long-term stability can reach 0.2 mm.It can accurately judge that the hidden sliding surface of the geological hazard of the mountain is 13.0 m below the ground,calculate the volume and slid-ing force of the hidden landslide body,and meet the needs of long-term real-time monitoring and prediction warning of all elements of mountain geological disasters.
关键词
山体地质灾害/隐伏滑面/MEMS传感器/陀螺仪/全要素监测
Key words
geological hazards of the mountain/hidden sliding surface/MEMS sensors/gyroscopes/total factor monitoring
维普
万方数据