影響煤與瓦斯突出的主控因素研究
[Abstract]:Coal and gas outburst is a serious mine dynamic disaster . At home and abroad scholars have carried out a great deal of research on coal and gas outburst process and mechanism , but still cannot meet the requirement of accurate prediction of coal and gas outburst . Especially in recent years , with the increase of mining intensity and depth of coal mine , the prominent problems become more severe .
First , according to the occurrence and flow theory of gas in the coal seam , the adsorption test of coal with different properties is carried out , and the adsorption curve and the adsorption expression of the coal on the gas are obtained . It provides a reference for the coal and gas outburst prediction .
The mine gas grade can be determined according to the size of gas emission from the mine . If it is a high gas mine , if there is no obvious dynamic phenomenon , coal and gas outburst can be determined . The most common indexes in single index method are single index method and comprehensive index method .
Based on the analysis of the catastrophe theory of coal and gas outburst , coal seam gas pressure , coal seam gas content , gas discharge initial velocity index , coal seam mining depth , geological structure factor , soft layer thickness of coal , damage type of coal and strong coefficient of coal are used as main control factors for classification .
【學(xué)位授予單位】:東北大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TD713
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