复杂地质条件下轻放工作面顶板管理

Light Caving Working Face Roof Management under Complicated Geological Conditions

基于薛村矿十盘区煤柱工作面,顶板破碎、采空区老巷多、片帮、冒顶时常发生的情况,根据对工作面地质条件和现场的实际观察研究,对工作面片帮、冒顶现象的发生原因进行了分析,提出了预防片帮、冒顶的技术措施。该措施有效地控制顶板片帮、冒顶现象的发生,顶板事故大大降低,同时减少了大量木料的投入,保证了安全,取得了较好的经济效益和社会效益。

Based on coal pillar working face in Shipan Area of Xuecun Mine, with freguent phenomena of roof breakage and old mined-out area, rib spaUing, roof caving, according to the mining geological conditions and the actual study, the causes of rib spalling and roof caving phenomenon were analyzed. The technical measures to prevent rib spalling, roof caving were put forward. The measures effectively controled the roof rib spalling, roof caving, reduced the roof accidents phenomena, at the same time, reduced the investment of large amount of wood, ensured the safety, achieved good economic and social benefits.