+786m水平车场交岔点支护与施工工艺研究  

Study on intersection supporting and construction technology of the +786m level shaft station

作　　者：吕兆海[1,2] 赵长红[1] 张艺耘 王震[1] 岳晓军[1] 

机构地区：[1]神华宁夏煤业集团有限责任公司,宁夏回族自治区银川市750004 [2]西安科技大学能源学院,陕西省西安市710054

出　　处：《中国煤炭》2015年第1期55-57,61,共4页China Coal

摘　　要：清水营煤矿井田属弱-中等富水性,二煤顶底板岩层导水性好、富水性强,大巷交岔点施工难度较大,易变形破坏失稳,基于锚网索耦合支护设计思路,在工程地质条件综合分析和地质力学评估前提下,提出大巷交岔点采用拱形断面及锚喷+锚索+可缩性钢支架的支护工艺,有效解决了交岔点变形、破坏问题。Qingshuiying Coal Mine has weak-medium water-rich property, the roof and floor rock of 2# coal has good water conductivity and strong water-rich property, the intersection of main roadway is difficult in construction, unstable easily to deformate and breaking. Based on the ideas of the bolt mesh cable coupling support design and in a comprehensive analysis of the engineering geological conditions and evaluation of geological mechanic premise, the intersection of main roadway using the supporting technique including arched section and bolt spray-anchor-retractable steel stent, which solved the questions of the intersection deformation and breaking.

关 键 词：巷道交岔点 巷道支护 联合支护 施工工艺 

分 类 号：TD353[矿业工程—矿井建设]