Tracking method for movement track of soil particles inside soil body based on magnetic measurement

Abstract

The invention belongs to the technical field of deep deformation monitoring, and discloses a tracking method for movement track of soil particles inside a soil body based on magnetic measurement. A field sampling mode for the density, the water content, the internal friction angle, the void ratio, the target height, the slope angle, the surrounding load, the height, the width and the slope to simulate a target, parameters are verified and regulated by employing the survey data; and the known parameters are utilized to simulate soil particles, and the simulated and magnetic tracer stones are put in a transparent glass box. The tracking method provided by the invention employs the GPS positioning principle to use three signal processors, employs a distance calculation method of the magneticdipole model to calculate the distance of each reference position to determine the three-dimensional position of the magnetic tracer stone, and can monitor the movement track of multiple points of thedeep layers of the simulated geologic body at the same time without influence between the magnetic fields due to work of the single magnetic tracer stone in the monitoring process so as to greatly simplify the computing and ensure the precision.

Description

technical field [0001] The invention belongs to the technical field of deep deformation monitoring, and in particular relates to a method for tracking the moving track of soil particles inside the soil based on magnetic measurement. Background technique [0002] At present, the commonly used existing technologies in the industry are as follows: in recent years, disasters caused by various geological actions have become more and more frequent, and disasters caused by violent movements of geological bodies caused by various artificial constructions. To reduce the human and financial losses caused by these disasters, it is necessary to predict the movement trends of various geological bodies, especially deep soil bodies, under various natural and artificial effects, so as to formulate corresponding measures to effectively control the occurrence of disasters. [0003] However, the current deformation monitoring of deep geological bodies is restricted by many factors, such as the...

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Problems solved by technology

[0005] (1) The existing deep soil detection technology does not consider the magnetic field interaction between monitoring instruments (signal transmitters), so the monitoring accuracy cannot be effectively controlled

[0006] (2) In the existing monitoring equipment, the signal transmitter used cannot adjust the strength of the magnetic signal according to the experimental requirements, so the signal transmitter needs to be replaced in different experiments

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