Three-dimensional displacement monitoring method for sliding mass

Abstract

The invention relates to a three-dimensional displacement monitoring method for a sliding mass. The method comprises the following steps: a, drilling a hole with the diameter of 75mm to a bedrock by the prior art, burying a metal pipe into the hole, and consolidating with cement around the hole; b, connecting short-piece probes in series, tripping into the buried metal pipe, carrying out measuring and comparing every 0.5 m, searching a three-dimensional displacement catastrophe point in the corresponding slide zone position, after monitoring for a period of time and when the three-dimensional displacement catastrophe point in the unstable sliding mass position appears, taking out the short-piece probes, connecting a sliding mass three-dimensional displacement monitoring instrument probe and an encapsulated three-dimensional acceleration displacement probe in series in a preset direction, putting the probes into the sliding mass unstable catastrophe point position in the metal pipe, fixing the probes, and carrying out fixed-type monitoring; and c, transmitting the data variation value obtained after the metal pipe deforms, to a ground-mounted sliding mass three-dimensional displacement monitoring instrument in a mini station type wireless internet GPRS transparent communication mode, thereby acquiring data in real time.

Description

technical field [0001] The invention relates to a monitoring method for monitoring geological disasters, in particular to a three-dimensional displacement monitoring method for landslide bodies. Background technique [0002] The research on the three-dimensional displacement automatic monitoring system of landslides belongs to the priority topic of geological disaster monitoring and forecasting theory and technical methods in the field of geological environment and geological disasters in the "National Medium and Long-term Science and Technology Development Plan (2006-2020)". [0003] At present, the monitoring and forecasting methods of geological disasters in my country are mostly surface deformation monitoring and deep horizontal displacement monitoring. The monitoring of surface deformation lags behind the monitoring of deep horizontal displacement, that is to say, only relying on the measured data of surface deformation monitoring, its prediction lags behind that of dee...

AI Technical Summary

Problems solved by technology

The products currently produced at home and abroad do not have the performance of monitoring the three-dimensional displacement of the sliding body. At present, countries such as Japan, Europe and the United States are also using fixed borehole inclinometers for automatic monitoring of deep displacement and deformation of landslides, but there is no three-dimensional monitoring of the sliding body deep in the landslide. Displacement monitoring