2) soft rock compound roof
软岩复合顶板
1.
Taking digging side in returning lane in third district 4# in Hexi Mine as example, this paper introduces the application of anchor bearing in special condition in half lane of soft rock compound roof and discusses effect and economic efficiency of lane bearing and measures taken for construction on the spot.
以贺西煤矿三采区4#回风巷掘进工作面为例,介绍了软岩复合顶板半煤巷锚杆支护在特殊条件下的应用,并针对现场施工采取的施工措施以及巷道支护的效果和经济效益进行了论述。
4) complex roof
复合顶板
1.
Roof control and practices on coal mining under complex roof;
复合顶板下采煤的顶板控制与实践
2.
Numerical analysis on rational support for complex roof of coal mining face in No.3 seam of Liuquan Mine;
柳泉煤矿3煤工作面复合顶板合理支护方式数值分析
3.
Technical analysis and prevention of roadway roof-fall accident under conditions of complex roof;
复合顶板条件下巷道冒顶事故技术分析及预防
5) compound roof
复合顶板
1.
Talking about the application of bolting support under the conditions of compound roof in coal road tunnling;
锚杆支护在复合顶板下煤巷掘进中的应用
2.
Application of bolt net bar supporting in compound roof coal-roadways;
锚网带支护在复合顶板煤巷中的应用
3.
Reserving space for lane along the tunnel under the condition of soft coal bed,compound roof supports and protections;
松软煤层复合顶板联合支护 沿空留巷探讨
6) composite roof
复合顶板
1.
Bolt supporting technique for composite roof in Tunlan mine;
屯兰矿复合顶板巷道锚杆支护技术与实践
2.
Under the condlition of medium-thick seam composite roof,the small pillars size and roadways support parameters are reasonably determined.
在中厚煤层复合顶板条件下,合理确定小煤柱尺寸及巷道支护参数,可提高煤炭回收率,保证巷道正常掘进和在服务期间内的使用。
补充资料：松软
1.松散绵软。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条