Novel method for predicting gas emission quantity of mine

Abstract

The invention discloses a novel method for predicting the gas emission quantity of a mine, which is characterized in that the prediction is carried out by the following steps: constructing a gas geomathematics model algorithm on the basis of the quantification theory I; carrying out analysis of gas geological conditions on factors which influence the gas emission quantity; carrying out statistic unit division and variable obtaining and establishing a multiple multi-attribute linear prediction model in which the gas emission quantity of a mined region is used as a dependent variable and the factors which influence the gas emission quantity are used as independent variables; carrying out repeated theory and practice examination on the established prediction model and finally, determining a gas emission quantity prediction model according with the actual condition; and carrying out value obtaining on a prediction region according to the statistic unit division and the value obtaining principle of a model reservation variable in the model establishing process and substituting the obtained value into the prediction model to carry out prediction on the gas emission quantity of an unmined region.

Description

technical field [0001] The invention relates to a method for predicting the emission of mine gas, belonging to the technical field of coal. Background technique [0002] In the process of coal mining, the gas problem has always been the main factor restricting the safe production of coal mines. Gas explosion is one of the main accidents causing mass casualties in coal mines. Accurate prediction of mine gas emission is the top priority in gas prevention and control work. heavy. In recent years, with the increase of mining depth and mining intensity, the geological conditions have become more complex, and the amount of gas emission has further increased. The main factors affecting gas emission include: gas content, burial depth, mining intensity, distance from adjacent layers, number of adjacent layers, gas content in adjacent layers, mining scale, mining intensity, coal mining method, production process, roof management method, ventilation Pressure, atmospheric pressure cha...

AI Technical Summary

Problems solved by technology

Some of these influencing factors are static and can be obtained through actual measurement; some are dynamic, which is unknown and undeterminable, and the impact on gas gushing is extremely complex

At present, the national standard AQ 1018-2006 for the prediction of gas emission in our country is a separate source prediction method based on gas content, which has high requirements for the distribution and quantity of gas content points. The prediction accuracy is low, so a simple, accurate and scientific method is needed to predict the amount of mine gas emission, so as to provide a basis for the prevention, decision-making and management of coal mine gas disasters

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