CAJ | 학술논문

通过对贺西煤矿地质构造、地质勘探钻孔探明的瓦斯基础参数分析发现煤层埋藏深度是影响该矿瓦斯含量和压力的控制因素.统计分析表明二者分别与煤层的埋藏深度成近似线性关系,并由此预测了生产采区生产区域的瓦斯含量和压力,预测值与实测值误差小于20%.贺西煤田的瓦斯风带深度为225 m,瓦斯带内瓦斯含量和压力的变化范围分别为5.27～8.64 m~3/t和0.1～1.45 MPa. 研究结论能作为瓦斯抽放设计的依据.
통과대하서매광지질구조、지질감탐찬공탐명적와사기출삼수분석발현매층매장심도시영향해광와사함량화압력적공제인소.통계분석표명이자분별여매층적매장심도성근사선성관계,병유차예측료생산채구생산구역적와사함량화압력,예측치여실측치오차소우20%.하서매전적와사풍대심도위225 m,와사대내와사함량화압력적변화범위분별위5.27～8.64 m~3/t화0.1～1.45 MPa. 연구결론능작위와사추방설계적의거.
The gas content and pressure were found to be controlled mainly by burying depth of coal bed through analysis of geological structure of coal seam and methane parameters of geological prospecting holes in Hexi mine. The statistical analysis shows that both gas content and gas pressure are linearly related to the depth.The prediction of the content and pressure in working regions shows a deviation of less that 20% between predicted and measured values. The depth of weathered coal zone is 225 m,the gas content in gas zone ranges 5.27～8.64 m~3/t, and the pressure 0.1～1.45 MPa.The conclusions may be used as the important basis for design of gas drainage.