Research On Outburst Elimination Technology On 401 Fully-mechanized Top-coal Caving Workingface Of Tianchi Coal Mine

Coal and gas outburst accident has seriously restricted the efficient production of coal mine safety, gas outburst elimination technique has been used for the specific working face of coal and gas outburst mines, the efficiency of gas disaster management has improved and provide technical support for realizing the coal and gas safety extractiont. In the summary of the system in recent years, the movement regularity of overburden rock, mine gas extraction technologies and the research of coal and gas outburst prevention and control technology and the latest progress, the tianchi coal mine 401 working face in the study of the gas outburst elimination technique is one of the highlights in agro-scientific research in the tianchi coal mine safety mining is proposed, at the same time it provides a theoretical basis to master the tianchi coal mine main extracting seam gas occurrence regularity and coal and gas outburst prevention technology system.Aiming at the character of tianchi coal mine 401 working face of coal seam buried depth,high gas content and poor permeability of coal seam and low consistence coefficient of coal seam, based on the research analysis of geological conditions and the test working face production conditions, the occurrence conditions of 401 working face of coal (rock) and gas occurrence characteristics are mastered, coal sample is taken by the coal gas basic parameter determination, more detailed to master the rule of the working face in coal seam gas occurrence, on this basis of determination the arrangement parameter of gas outburst elimination, the corresponding technical measures are formulated, relative elimination measures are formulated through the application in the process of tianchi coal mine 401 mining face elimination measures for real-time observation, and build up a set of applicable outburst elimination technique system of coal mining work face, and apply to practical guide working face in a sudden work.Based on the technology of real-time monitoring system application process, the analysis of data are collected by the use of regional, local gas outburst index is used to test the technical system implementation, it obtains the good effect and provides technical support to ensure the tianchi coal mining working face safe and efficient mining.