摘要
针对减少资源浪费,减少生产成本投入,增加经济效益,提高煤矿产能,神华宁煤集团引进切顶卸压自动成巷技术(以下简称110工法),在其下属单位金凤煤矿进行试验。利用恒阻大变形锚索对巷道顶板进行加强支护,控制顶板下沉,通过预裂钻孔双向聚能爆破,将巷道顶板岩石切割,以矿山压力为动力将采空区矸石压下,利用采空区垮落碎胀的顶板矸石堆砌形成巷帮,使原有巷道能够最大限度地保留,充分发挥矸石的自身承载作用,减少巷道变形,保证留巷效果。现场试验表明,金凤煤矿011810工作面的110工法技术应用,取得了良好的应用效果。
In order to reduce the waste of resources,reduce the investment of production cost,increase the economic benefit and improve the production capacity of coal mine,Shenhuanning Coal Group introduced the automatic roadway technology of cutting top pressure and unloading (hereinafter referred to as 110 construction method),and carried out the experiment in Jinfeng Coal Mine,a subordinate unit of Shenhuanning Coal Group.The roof of roadway is strengthened by constant resistance and large deformation anchor cable,the roof subsidence is controlled,the rock of roadway roof is cut by pre-split drilling bidirectional energy accumulation blasting,the gangue in goaf is pressed down by mine pressure,and the roof gangue is piled up in goaf to form roadway help,so that the original roadway can be retained to the maximum extent and the bearing function of gangue can be brought into full play.Reduce the deformation of roadway to ensure the effect of roadway retention.The field test shows that the application of 011810 working method technology in Jinfeng Coal Mine has achieved good application effect.
作者
张强
赵俊
周光
ZHANG Qiang;ZHAO Jun;ZHOU Guang(Shenhua Ningxia Coal Industry Group Energy Engineering Co.,Ltd.Environmental Safety Engineering Branch,Ningxia Yinchuan,China 750000)
出处
《工程建设（维泽科技）》
2019年第5期141-144,共4页
Engineering Construction
关键词
110工法
恒阻大变形锚索
预裂切缝孔
双向聚能爆破
110 construction method
Constant resistance and large deformation anchor cable
Pre-split slit hole
Two-way energy accumulation blasting
