Underground three-dimensional displacement measuring system based on multiple mutual inductance mechanisms, and method

Abstract

The invention discloses an underground three-dimensional displacement measuring system based on multiple mutual inductance mechanisms, and a method. The underground three-dimensional displacement measuring system comprises a host machine and cylindrical integrated measuring units, wherein the cylindrical integrated measuring units are in series connection from top to bottom; the cylindrical integrated measuring units are buried in underground rock and soil, and the cylindrical integrated measuring units after being connected in series are connected to the host machine; each cylindrical integrated measuring unit comprises a PVC hollow pipe, a periphery coil, mutual inductance coils and a circuit board; a measuring set is formed by every two top-and-bottom adjacent cylindrical integrated measuring units; the relative vertical displacement and the relative horizontal displacement between every two adjacent cylindrical integrated measuring units are measured as a single displacement quantity through the electromagnetic mutual inductance of the periphery coil and the mutual inductance coils in each measuring set; then accumulating calculation is performed, so as to obtain the displacement quantity of different depths of the underground rock and soil and the total displacement quantity. According to the underground three-dimensional displacement measuring system disclosed by the invention, three-dimensional measurement on underground deformation caused by various reasons can be realized, and the continuous three-dimensional measurement of the underground deformation quantity, which cannot be realized by other methods at present, is realized.

Description

technical field [0001] The invention relates to an underground displacement measurement method and device, in particular to a three-dimensional underground displacement measurement method and device based on a multi-mutual inductance mechanism. Background technique [0002] Geological disasters cause irreversible damage to human life and the environment, and hinder the development of human society and economic construction. Ground deformation monitoring is often used as a routine monitoring technology for geological disaster monitoring, and has become an important basis for disaster prediction and forecasting. However, ground deformation monitoring can only grasp the displacement of the surface, and cannot measure the deformation of the ground, which cannot meet the needs of stability analysis and early warning of disasters in many cases. If there is a method to measure the internal displacement of the disaster body where the landslide may occur, to know the location and de...

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Problems solved by technology

[0004] In order to solve the problem that cannot be measured in the background technology, the object of the present invention is to provide a three-dimensional measurement method and device for underground displacement based on the multi-interaction mechanism

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