对江南煤矿煤层群开采保护层选择分析

重庆能源(贵州)煤电有限公司,贵州 毕节 551700

煤层群开采; 保护层; 瓦斯赋存; 瓦斯治理;

Analysis on the selection of protective seam exploitation in coal seams of Duijiangnan coal mine
HU Zheng-tian

(Chongqing Energy(Guizhou)Coal and ElectricCo.,Ltd., Bijie 551700,China)

coal seams exploitation; protective seam; gas occurrence; gas management

DOI: 10.13800/j.cnki.xakjdxxb.2015.0509

备注

基于对江南煤矿煤层群开采时遇到的实际问题,以及对该矿井田范围内可采煤层赋存及瓦斯赋存条件进行分析,提出了对江南煤矿煤层群开采保护层的方法来解决矿井瓦斯灾害的重要性。通过对对江南煤矿煤层突出危险性指标、瓦斯赋存、煤层赋存条件分析,同时对该矿可采煤层的开采顺序进行分析研究,确定优先选择突出危险程度较小的M51煤层作为保护层先行开采的技术方案。通过开采保护层的方法来解决对江南煤矿煤层群开采时矿井瓦斯灾害问题,是一种综合治理瓦斯问题的有效合理化建议,可为黔北矿区具有类似条件的矿井在科研、初步设计过程中提供借鉴指导意义。

Based on actual problems of the Duijiangnan coal mine and the analysis of coal seam gas occurrence conditions within the scope of the mine field,a method is proposed for the Duijiangnan coal mine protective layer to solve the gas disaster.Through the Duijiangnan coal seam outburst danger index,gas occurrence,and analysis of coal seam conditions,the mine coal seam mining sequence were analyzed to determine the preference for a smaller degree risk of M51 as a protective seam layer for first mining.To solve the coal mine seam gas disaster by mining protective layer is an effective rational proposal for a comprehensive treatment of gas issues,which is of reference forsimilar Qianbei mine in the research and preliminary design process.