摘要
通过对掘进工作面前方应力分布状况进行力学分析，并结合平煤十矿现场情况研究了煤与瓦斯突出预测指标和掘进速度的变化相关性，讨论工作面掘进速度的合理控制。分析认为：掘进速度必须能较好-9应力释放速度同步，才能使巷道安全掘进；平煤十矿己15—24080掘进工作面的最佳掘进速度应控制在1．3～1．4m／d，为提高巷道掘进效率和促进煤矿安全生产提供依据。
With the mechanics analysis on the stress distribution status in front of the gateway driving face and in combination with the site conditions of Pingmei No. 10 Mine, the paper studied the variation correlation of coal and gas outburst prediction index and the driving speed, and discussed the rational control of the driving speed of working face.The analysis held that the driving speed should well keep step with the stress releasing speed and thus could ensure safety driving of the gateway.The optimum driving speed of No. Ji15-24080 driving working face in Pingmei No. 10 Mine Should be controlled in 1.3 ~ 1.4 m/d ,so as to provide the basis to improve the gateway driving effi- ciency and to promote the mine safety production.
出处
《煤炭科学技术》
CAS
北大核心
2013年第12期43-45,共3页
Coal Science and Technology
基金
国家自然科学基金资助项目(51274206)
关键词
煤与瓦斯突出
掘进速度
应力分布
钻孔瓦斯涌出初速度
钻屑量
coal and gas outburst
driving speed
stress distribution
initial velocity of gas emission from borehole
drilling cuttings value
