1) Battery coal seam Along cavily alley Pin timbering
破碎煤层沿空掘巷锚杆支护
4) bolt supporting of nether coal bed
下煤层锚杆支护
5) gob-side entry driving
沿空掘巷
1.
Research on surrounding rock deformation factors in gob-side entry driving of fully mechanized longwall top coal caving mining face in island seam;
孤岛综放工作面沿空掘巷围岩变形因素研究
2.
The gob-side entry driving in the fully-mechanized coal winning face can be protected successfully by using the anchored cable and rod supporting system.
采用锚杆、锚索支护系统成功地维护了综放沿空掘巷,保证了综放面顺利回采。
3.
In fouth cola mine of Hebi coal power stock company,roadway of neighbouring goaf bear a large pressure,maintenance is very difficult ,it affects safety production,in order to solve this problem,this coal mine co-operates with jiaozuo university of engiveering,combined supporting technology of gob-side entry driving have been studied through test in 2118 2614 workface tood results are gained.
鹤壁煤电股份公司四矿综放工作面相邻采空区的巷道所受压力大,维护困难,严重影响安全生产,为解决这一问题,该矿与焦作工学院合作,进行了沿空掘巷联合支护技术研究,经2118、2614综放面试验,效果良好。
6) roadway driving along goaf
沿空掘巷
1.
In the paper,in order to solve the problem of difficult supporting large section roadway driving along goaf in deep mine,on the basis of numerical simulation of support effect and mechanism of fortified roadways at their different parts,the concept of floor distortion control in the whole section of large section roadway driving along goaf in deep mine was brought forward.
巷道支护问题一直是煤矿安全生产和建设的难题之一,根据深井大断面沿空掘巷难支护的特点,数值模拟分析了加固巷道不同部位的效果及其机理,提出"强顶、固帮、控底"全断面控制深井大断面沿空掘巷底臌变形的技术思路,并应用于工程实践,取得了良好的技术经济效果。
补充资料：喷锚支护
| 喷锚支护 combination of anchorage and shotcrete support 把锚固和喷混凝土结合起来，用以加固地下洞室围岩的措施。喷混凝土是利用喷浆设备向地下洞室开挖面喷一定厚度的混凝土层，借以支护围岩。由于混凝土喷层密贴围岩，并具柔软性等特点，所以能承受较大荷载，并能控制围岩变形，充填胶结岩体表层裂隙，保护和发挥岩体的潜力。喷混凝土可以作为洞室围岩的初期支护，也可以作为永久性支护。喷锚支护是使锚杆、混凝土喷层和围岩形成共同作用的体系，防止岩体松动、分离。把一定厚度的围岩转变成自承拱，有效地稳定围岩。当岩体比较破碎时，还可以利用丝网拉挡锚杆之间的小岩块，增强混凝土喷层，辅助喷锚支护。 |
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