摘要
综采工作面在回采期间,受构造应力、回采压力影响,煤壁出现大面积片帮,端面空顶距加大,端面易出现破碎、局部冒顶现象,不仅加大了支架移架难度,降低了工作面回采效率,而且易发生顶板事故。山西霍宝干河煤矿有限公司通过技术研究,对209工作面端面破碎顶板采取了有效的控制措施,保证了工作面安全回采。
During the recovery period of fully mechanized coal mining face,due to the influence of structural stress and recovery pressure,coal walls begin to large pieces of rocks,the end surface of the face is increased,the end face is easily broken and topping,which not only increases the difficulty of the frame shifting,but also reduces the efficiency of the working face,and it is easy to bring about roof accident.Shanxi Huobaoganhe Coal Mine Co.,Ltd.has taken effective control measures to the broken roof of 209 working face through technical research,so as to ensure the safe recovery of the working face.
作者
丁鑫
Ding Xin(Shanxi Huobaoganhe Coal Mine Co., LTD., Shanxi Linfen 04160)
出处
《山东煤炭科技》
2018年第8期29-30,共2页
Shandong Coal Science and Technology
关键词
综采
端面
控制
措施
fully mechanized
mining end face
control measures
