底分层工作面沿空留巷复合支护技术研究及应用  

Research and Application of Composite Support Technology of Backhole Stay Lane in Bottom Layered Working Face

作　　者：李辉峰 孙鹏 程志斌[3] 季忠伟 Li Huifeng;Sun Peng;Cheng Zhibin;Ji Zhongwei(Wangzhuang Coal Mine,Lu'an Chemical Group Co.,Ltd.,Changzhi Shanxi 046000;Shanxi Huo'er Xinhe Coal Industry Co.,Ltd.,Changzhi Shanxi 046000;Henan Institute of Technology of Henan University of Technology,Jiaozuo Henan 454003)

机构地区：[1]潞安化工集团有限公司王庄煤矿,山西长治046000 [2]山西霍尔辛赫煤业有限责任公司,山西长治046000 [3]河南理工大学河南理工产业技术研究院,河南焦作454003

出　　处：《山西冶金》2021年第2期185-188,共4页Shanxi Metallurgy

摘　　要：基于河南某矿15032底分层工作面运输巷的工程地质条件,通过对沿空留巷顶板结构变化特征进行全程监测,采用预裂爆破切缝、"双层金属网+锚索梁+钢丝绳+工钢梁"组合支护等控制手段,得到留巷支护参数,并在现场作了试验。结果表明,在采用复合支护下的顶板切顶卸压效果良好,留巷围岩可较好地保持稳定。采掘接替紧张、巷道维护困难等难题得以解决,满足了安全生产需要,为类似条件下的沿空留巷实施提供技术借鉴。Based on the engineering geological conditions of 15032 bottom stratified working face transportation roadway in a certain mine in Henan Province, the parameters of retaining roadway support are obtained by monitoring the change characteristics of roof structure along goaf roadway, using pre-splitting blasting cutting joint and combined support of "double-layer metal mesh anchor cable beam steel wire rope worker steel beam ", and the test is carried out in the field. The results show that the pressure relief effect of roof cutting under composite support is good, and the surrounding rock of roadway can be kept stable. The difficult problems such as mining succession tension and roadway maintenance are solved, which meet the needs of safety production and provide technical reference for the implementation of roadway along the goaf under similar conditions.

关 键 词：沿空留巷 预裂爆破 组合支护 围岩控制 切顶卸压 

分 类 号：TF341[冶金工程—冶金机械及自动化]