Intelligent positioning method of mine microquake sources

Abstract

The invention discloses an intelligent positioning method of mine microquake sources, which is a microquake resource intelligent positioning system which comprehensively considers various influencing factors and targets, and integrates with sensors distribution-noise wave filtration-microquake source positioning analysis-three-dimensional display in to a whole. The method realizes the real-time analysis and the forecast of the incubation, the development and the occurrence of mine underground geological disaster through a self-developed procedure, solves the defects that the traditional sensors distribution method is not systematic, the noise wave filtration is incomplete, the microquake wave speed model is not exact and the positioning method is easily diffused, and has the characteristics of friendly operation interface, good noise wave filtration performance, exact, convenient and fast microquake source positioning analysis, visual and pictorial result display, and wide application range. The method has wide application value in the fields of mineral engineering, water conservancy and electric power engineering, petroleum engineering, soil engineering and underground engineering and the like.

Description

technical field [0001] The invention belongs to the technical field of mine microseismic monitoring, and more specifically relates to an intelligent positioning method for mine microseismic sources, which can be widely used in mining engineering, water conservancy and hydropower engineering, petroleum engineering, geotechnical engineering and underground engineering. Background technique [0002] With the rapid growth of my country's national economy, deep mining has become a major development direction of my country's mining. With the increase of mining depth, the ground stress increases correspondingly, and the deterioration of mining conditions leads to a significant increase in the phenomenon of roof collapse and slabs during mining, and even rock bursts and other dynamic rockburst disasters, causing serious damage to the country, mining enterprises and the people. It caused huge loss of life, property and economy, and seriously restricted the sustainable development of ...

AI Technical Summary

Problems solved by technology

The former is the most widely used in the seismic field and mining engineering. The inaccuracy of the velocity model is the biggest shortcoming of this method. Although the predecessors have done a lot of research on the velocity model, because the rock material is complex and heterogeneous, it contains There are a large number of cracks, joints and micro-discontinuities, and it is difficult to determine the position, size and direction of these bad bodies in advance, and it is also difficult to draw the boundaries between these bad bodies. It is still difficult to give a reasonable wave velocity model in advance , which greatly affects the stability and positioning accuracy of the positioning algorithm; the latter better solves the problem of inaccurate velocity models and improves the positioning accuracy of microseismic sources to a large extent. The interrelationship of parameters such as time and medium speed has brought about the problem of unstable positioning results

In addition, these positioning algorithms mainly use the least square method to solve. The biggest disadvantage of this kind of method is that it is easy to diverge during the solution process.

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