急倾斜厚煤层综放工作面开切眼支护技术  

Open-off cut support technology of fully mechanized caving face in steeply inclined thick coal seam

作　　者：马燕超 Ma Yanchao(Jizhong Energy Fengfeng Group Co.,Ltd.,Handan 056000,China)

机构地区：[1]冀中能源峰峰集团有限公司,河北邯郸056000

出　　处：《煤炭与化工》2022年第10期27-30,共4页Coal and Chemical Industry

摘　　要：以峰峰集团新疆天顺矿井1101WX3急倾斜工作面为背景,系统研究了急倾斜厚煤层采用综放开采、切眼的掘进方式和支护形式,研究了1101WX3急倾斜大断面切眼自下向上钻孔贯通及由上向下刷帮成巷的施工方法;以切眼围岩基本参数为基础,确定了以“锚索、W钢带、双塑料网及液压支柱”的联合支护形式,形成了高强度、高锚固点及高承载结构的支护技术,实现了巷道围岩的稳定控制,为同等地质条件下的切眼掘进施工提供了可靠的支护方案。Based on No.1101WX3 steeply inclined working face of Xinjiang Tianshun Mine in Fengfeng Group,the excavation method and support form of fully-mechanized caving mining and open-off cut in steeply inclined thick coal seam were systematically studied.The construction method of drilling from bottom to top and brushing from top to bottom in large section open-off cut of No.1101WX3 Face was studied.Based on the basic parameters of the surrounding rock of the open-off cut,the combined support form of'anchor cable,W steel strip,double plastic net and hydraulic prop'was determined,and the support technology of high strength,high anchorage point and high bearing structure was formed.The stability control of the surrounding rock of the roadway was realized,and a reliable support scheme was provided for the open-off cut excavation construction under the same geological conditions.

关 键 词：急倾斜厚煤层 开切眼 联合支护 

分 类 号：TD353[矿业工程—矿井建设]