School of Energy, Xi'an University of Science and Technology Daliuta Mine, Shenhua Shendong Coal Group
Corporation Limited

为解决特殊地质条件下掘进工作面顶板难控制的问题,对大柳塔煤矿特殊地质条件掘进工作面进行分类,分析可知主要包括过断层带巷道掘进、过薄基岩带巷道掘进、特近距离煤层下层煤巷道掘进和特大断面巷道掘进等,这些区域掘进工作面顶板事故多发,严重威胁矿井安全掘进。通过采取断层区域、薄基岩条件下、特近距离煤层下层煤、特大断面巷道掘进工作面顶板控制技术,解决了大柳塔煤矿特殊地质条件下掘进工作面顶板控制问题,实现了矿井快速安全掘进。

In order to solve the roof control problem of the mine roadway heading face under the special geological condition, a classification was conducted on the heading faces of the special geological conditions in Daliuta Mine. The analysis showed that the heading faces would mainly include the heading of the roadway passin g through a fault zone, heading of the roadway passing through thin base rock zone, heading of the roadway with a closed distance to the above seam and heading of t he roadway with a large cross section. Many roof accidents occurred in the heading faces in those regions would seriously threaten the safety heading of the mine. The roof control technology of the mine roadway heading face with the large cross section in the seam with ultra contiguous to above seam under the condition of the fault Z one and thin base rock could solve the roof control problem of the heading face under the special geological condition in Daliuta Mine and a mine rapid safety heading was realized.

国家自然科学基金委员会与神华集团有限责任公司联合基金资助项目(U1261207)；