1) compound mudstone roof
复合泥岩顶板
1.
Technology of the truss cable combined support on large cross-section compound mudstone roof starting cut;
大断面复合泥岩顶板切眼桁架锚索组合支护技术
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。
3) 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
4) 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
5) 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。
6) combined roof
复合顶板
1.
Acoording to the practice of mining combined roof seam in Xingan Coal Mine,Hegang Mining Group Comp.
根据鹤岗矿业集团公司兴安煤矿多年来对复合顶板煤层开采的实践,分析复合顶板冒落特点和原因、控制冒顶的基本原理、预防冒顶的措施。
2.
According to the"maintaining"principle of combined roof,the characteristic and rule of roof separation,caving and collapse of the mined face in 3 Coal of Liuquan Colliery by numerical simulation with RFPA2D.
按照复合顶板以“护”为主的原则,应用岩石破断分析系统(RFPA2D),通过数值计算得出了柳泉煤矿3煤工作面复合顶板离层、冒落、垮落的特征和规律,确定了工作面支柱的合理工作阻力和支护密度,最大限度地减少了压、漏、推冒顶事故的发生,取得了良好的经济效益。
补充资料：泥岩
| 泥岩 mudstone 一种层理或页理不明显的粘土岩。矿物成分复杂，主要由粘土矿物（如水云母、高岭石、蒙脱石等）组成，其次为碎屑矿物（石英、长石、云母等）、后生矿物（如绿帘石、绿泥石等）以及铁锰质和有机质。质地松软，固结程度较页岩弱，重结晶不明显。常见类型有：①钙质泥岩。含适量碳酸钙，常见于大陆红色岩系和海洋、潟湖相的沉积岩层。②铁质泥岩。含较多的铁矿物，如赤铁矿、褐铁矿、针铁矿等，多见于红色岩层。③硅质泥岩。SiO2含量较高，不含或极少含铁质和碳酸盐质物，常与铁质岩、硅质岩、锰质岩相伴生。泥岩具吸水、粘结、耐火等性能，可用于制砖瓦、制陶等工业。
|
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