Seismic information based coal mine water disaster predication and evaluation method

Abstract

The invention relates to a seismic information based coal mine water disaster prediction and evaluation method, and belongs to a coal mine water disaster prediction and evaluation method. The coal mine water disaster prediction and evaluation method comprises three lithologic interpretation methods such as a seismic attribute method, a seismic lithologic inversion method and a probability neural network inversion method; factors influencing water inrush of coal seam roof and floor fall into three categories such as construction, lithology and hydrogeology; construction, lithology and hydrogeology information is acquired by using various lithologic seismic interpretation methods, quantization is carried out on the information, a prediction and evaluation model taking the three types of influencing factors into consideration is established, the water inrush danger level of each part of a mining area is predicted and divided, and prediction and evaluation are carried out on a coal mine water disaster. The advantage is that mutual cross technologies of geophysics, mining engineering and hydrogeology are applied so as to provide geological guarantee for water prevention and safety production of coal mines.

Description

technical field [0001] The invention relates to a method for predicting and evaluating coal mine water disasters, in particular to a method for predicting and evaluating coal mine water disasters based on seismic information. Background technique [0002] With the deep mining of coal mines, various problems encountered in production are becoming more and more prominent, among which water inrush from the roof and floor of coal seams is a catastrophic problem that affects the safe production of coal mines. The water inrush from the roof and floor of coal seam is a dynamic phenomenon controlled by many factors, the main factors are the confined aquifer of roof and floor, the thickness and capacity of water-resisting layer, geological structure, mining activities and so on. Especially when Taiyuan limestone or Ordovician limestone is used as the basement of coal-measure strata, there are generally strong water-rich aquifers, high water pressure, thin water-resisting layers, and ...

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Problems solved by technology

[0012] The purpose of the present invention is to provide a coal mine water disaster prediction and evaluation method based on seismic information, which solves the problem that the traditional methods start from a certain angle, consider a single water inrush factor, and have low prediction accuracy

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