钻孔瓦斯涌出量确定排放半径影响因素分析  

Analysis on Influencing Factors of Gas Emission with Boreholes to Determine Drainage Radius

作　　者：赵长闯[1] 李增华[1] 马新青[1] 陈奇伟[1] 杨玉静[1] 王亚丽[1] 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221008

出　　处：《煤炭技术》2009年第9期93-95,共3页Coal Technology

摘　　要：《防治煤与瓦斯突出细则》(以下简称《细则》)规定排放半径测试方法采用瓦斯涌出量的相对变化值确定排放钻孔排放半径,但是在实际操作中,该方法受到钻孔施工、工作面实际情况、流量计的选取等一系列因素的影响,导致测量数据不准确。文章通过实例分析,指出瓦斯涌出量确定排放半径的影响因素,并试图采用相应的方法准确测定排放钻孔的排放半径,为设计排放钻孔提供依据,以提高瓦斯排放效果。＂The detailed regulations of preventing coal and gas ＂（ - hereinafter- the detailed regulations）regulates the method of measuring drainage radius by the relative changes of gas emission quantity to determine drainage radius of advancing hole. During the process of the operation, the method was influenced by serious factors such as drilling construction, the practical conditions of working face, the selection of flow meter, resulting in the inaccuracy of measurement. Through the examples of analysis, this paper points out that the gas emission to determine the radius of emission limitations and other methods attempt to accurate determination of emissions from the emission radius drilling, drilling for the design of emissions to provide a basis to enhance the effect of gas emissions.

关 键 词：煤与瓦斯突出 瓦斯涌出量 排放半径 

分 类 号：TD712[矿业工程—矿井通风与安全]