School of Resources and Safety Engineering,China University of Mining and Technology (Bejing)

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与应力释放速度同步,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1.3~1.4 m/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 N 0.10 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 sp eed 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. Ji15-24080driving 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 efficiency and to promote the mine safety production.

国家自然科学基金资助项目(51274206)；