Extension Comprehensive Evaluation Of Coal Mine Gas Drainage Reach Standards Based On AHP-Interaction Matrix

Along with the increase of mining depth, the number of outburst mines and coal seams also continue to increase. Gas disasters are becoming more and more serious. Gas drainage is one of the widely used and effective methods among the technology to solve the problem of mine gas. An important reason of abnormal gas emission, coal and gas outburst, gas burning and gas explosion happened in mine is the gas drainage didn’t work well that should be extracted but didn’t extracted or the effect of the gas drainage did not meet specified requirements. Therefore, it is of great significance to appraise of gas drainage in mine reaching standard.In order to solve the coal mining enterprises in carrying out gas drainage generally problems existing in the standard evaluation, such as evaluation index system imperfect, backward evaluation methods, and difficult to quantify evaluation results. This article is based on the analysis of the domestic and foreign research situation and interpretation of the relevant specification also combining the reality of coal mine gas drainage to analyze the factors influencing gas drainage reaching standard. It establishes the evaluation index system of gas drainage in mine reaching standard which using comprehensive integration method combined analytic hierarchy process (AHP) and relation matrix to determine the weight of evaluation indexes. It builds the extension comprehensive evaluation model of gas drainage in mine reaching standard and used this model to make up-to-standard evaluation aimed at test mine from the four aspects:gas drainage system, the method and parameters of gas drainage, the management and effect of gas drainage. It finds out the problems existing in the work of gas drainage in test mine and put forward the corresponding improvement suggestions according to the evaluation results which ensure the safety and normally proceeded of gas drainage in mine.