摘要
为了提高丁集煤矿地质构造破坏带内煤与瓦斯突出预测的准确性,分析研究了丁集煤矿煤与瓦斯动力现象的特征,统计了其主采11-2煤层6条巷道的实测预测参数,分析地质构造带内煤与瓦斯突出预测超标点的特征和超标点距构造带的距离。结果表明:丁集煤矿煤与瓦斯动力现象特征是在瓦斯的参与下,以地应力和地质构造综合作用为主的压出;瓦斯涌出初速度预测指标在井田东部构造带附近敏感性较强;在煤巷掘进过程中遇构造破坏带前30m范围内应该加强煤与瓦斯突出的预测预报,10m范围内应实施积极的防突措施,以防止瓦斯动力事故的发生。
In order to improve the accuracy of the coal and gas outburst prediction for the geological structure failure zone of Dingji Mine, the paper analyzed and studied the coal and gas dynamic phenomenon features of Dingji Mine, had the statistics on the actual prediction parameters of the six gateways in the main mining No. 11 - 2 seam and analyzed the features of the coal and gas prediction over limits and the distance of the over limit distance structure zone for the geological structure zone. The results showed that the coal and gas dynamic phenomenon features of Dingji Mine would be the outburst mainly based on the earth stress and geological structure comprehensive role with the participation of gas. The prediction index of gas emission nitial speed would be very sensitive near the minefield eastern structure zone. Within 30 m in front of the structure failure zone, the prediction and pre-warning of coal and gas outburst should be enhanced. Within 10 m, the outburst prevention measures should be actively implemented in order to prevent the gas dynamic accident occurred.
出处
《煤炭科学技术》
CAS
北大核心
2010年第1期24-27,共4页
Coal Science and Technology
基金
国家重点基础研究发展计划(973计划)资助项目(2005CB221501)
教育部新世纪优秀人才支持计划资助项目(NCET-07-257)
关键词
地质构造
煤与瓦斯突出
超标率
geological structure
coal and gas outburst
over standard rate
