Landslide underwater net type three-dimensional deformation monitoring system and monitoring method

Abstract

The invention provides a landslide underwater net type three-dimensional deformation monitoring system and monitoring method. A plurality of underwater multifunctional 3D displacement meters are arranged in a lattice shape and are connected in sequence; four rotating shafts are rotatably installed in a shell; the rotating shafts extend in a vertical direction; one end of each rotating shaft and the shell are connected with a contraction spring; four through holes are formed in the circumferential direction of the shell at intervals in a penetrating mode; stay wires are in one-to-one correspondence with the through holes; one end of each stay wire is wound on the corresponding rotating shaft, and the other end of each stay wire penetrates out of the corresponding through hole to be connected with the stay wire of the adjacent underwater multifunctional 3D displacement meter; the displacement meters correspond to the stay wires and measure the take-up and pay-off length of the stay wires; and three-axis acceleration sensor and fluxgates monitor the dip angle change and the azimuth angle change of the underwater multifunctional 3D displacement meters. According to the landslide underwater net type three-dimensional deformation monitoring system and monitoring method, the underwater deformation evolution characteristics of a landslide can be indirectly obtained by sensing and monitoring the spatial state change of a large number of points on the surface of the landslide and inversion integral calculation based on a networking type monitoring method. The monitoring system and monitoring method are beneficial supplements to the existing landslide displacement monitoring means.

Description

technical field [0001] The invention relates to the technical field of landslide disaster monitoring, in particular to a landslide underwater net-type three-dimensional deformation monitoring system and a monitoring method. Background technique [0002] The mountains in the central and western regions of my country are widely distributed, with sufficient rainwater conditions and frequent geological disasters. Every year, the human and financial losses caused by geological disasters are huge, of which landslide disasters account for about 2 / 3 of the total. Water is an important inducing factor of landslide geological disaster, so it is also an important content of landslide geological disaster monitoring. In recent years, the periodic fluctuation of the water level of the Three Gorges Reservoir has caused a large number of ancient landslides to re-slide. Taking corresponding monitoring methods and continuously monitoring the deformation characteristics of reservoir landslides...

AI Technical Summary

Problems solved by technology

However, due to the challenges of underwater deformation monitoring of landslides such as waterproofing and underwater deformation feature acquisition, traditional monitoring techniques cannot be effectively applied in underwater environments

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