Speed anisotropic microseismic monitoring positioning method, microseismic monitoring positioning terminal and microseismic monitoring positioning system

Abstract

The invention provides a speed anisotropic microseismic monitoring positioning method, a microseismic monitoring positioning terminal and a microseismic monitoring positioning system, wherein the microseismic monitoring positioning method can overcome the problems of high difficulty, low precision, etc., in monitoring and positioning a mining-induced seismicity by other similar methods. The speed anisotropic microseismic monitoring positioning method has advantages of improving arrival time reading precision and effectively improving microseismic detection precision and positioning calculating precision. The microseismic monitoring positioning method has an advantage of simple and reasonable positioning terminal structure and performs functions of performing real-time monitoring on a seismic signal and automatically identifying the mining seismic signal by means of phase identification technology. Key data of hypocentral location, earthquake magnitude, mining-induced seismicity time, etc., of pre-identified mining-induced seismicity signals can be calculated through a single-point positioning algorithm, an earthquake estimation algorithm and a P-wave accurate arrival time estimation algorithm. The microseismic monitoring positioning system has a reasonable structure and can perform origin time, hypocentral location and seismic magnitude calculation in real time. The calculation result and the stored mining-induced seismicity data are converted through photoelectric conversion and transmitted through a network. The speed anisotropic microseismic monitoring positioning method, the microseismic monitoring positioning terminal and the microseismic monitoring positioning system are suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of earthquake positioning, in particular to a velocity anisotropic microseismic monitoring and positioning method, a positioning terminal and a positioning system. Background technique [0002] Mine earthquake is a mine earthquake induced by mining, and it is one of the natural disasters in mines. How to reduce and reduce the accidents and disasters caused by mine earthquakes is an important topic of current research, and one of the main ways to solve this problem is to carry out real-time continuous monitoring of mine earthquakes. [0003] The change of a certain property of a medium with direction is usually called anisotropy. There are many types of anisotropy in the subsurface medium, the most common and simplest is the axisymmetric transverse isotropic medium, which is very common in sedimentary basins, piedmont nappe fold belts, and pre-salt sedimentary strata. When there is axial symmetry, any inhom...

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Problems solved by technology

[0019] In view of the above problems, the present invention provides a method with a reasonable conception, which can effectively overcome the difficulties and low precision of mine earthquake monitoring and positioning calculations by other similar methods, and can accurately analyze the anisotropy of earthquake velocity, and quickly conduct real mine earthquakes. , Accurate monitoring and positioning, speed anisotropic microseismic monitoring and positioning method, positioning terminal and positioning system that improve the accuracy of microseismic monitoring and positioning

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