地质构造及局部大倾角条件下综放工作面安全回采关键技术研究与应用

Research and Application of Key Technologies for Safe Mining on Fully Mechanized Caving Faces under Geological Structure and Local Large Inclination

断层等地质构造是制约矿井安全生产的重要因素,尤其是在大倾角、大落差断层等条件下,片帮、漏冒顶等将会严重影响安全生产.针对大平矿3111工作面在最大倾角达30°条件下,通过三机防滑、注浆、爆破、调斜等措施,采取"硬过"的方式在大倾角条件下工作面顺利通过了大落差断层,取得了较好的实践效果,为矿井积累了宝贵的回采经验.

Geological structures,such as faults,are key constraints in safe production in mines.Especially under the conditions of large inclination and high drop faults,rib spalling and roof leaking and caving could seriously threaten the safety production.Aiming at the 3111 working face in Daping Mine at a maximum inclination angle of 30°,the study adopted some measures,including three-machine anti-sliding,grouting,blasting,and tilt adjustment,and hard-passing method to pass the high drop faults smoothly,which has achieved good practical effects and accumulated valuable experience for other mines.