2) deep well coal roadway
深井煤巷
1.
Application research deep well coal roadway anchor support and its project
深井煤巷锚索支护机理及其工程应用研究
4) coal lane
煤矿巷道
1.
Study on the gas flow pattern in the coal lane and the recommended safe coal excavation method;
瓦斯气在煤矿巷道中的流动规律和推荐的安全采煤法
6) mine roadway
煤矿巷道
1.
The paper introduced the present status of the high efficient mine roadway driving and support technologies in China coal mines.
介绍了我国煤矿巷道高效掘进与支护技术的现状,针对不同煤、岩类型的巷道掘进技术进行了详细介绍,分析了我国煤矿主要掘进设备与国外技术存在的差距,指出了煤矿巷道高效掘进技术的发展趋势。
2.
The engineering practice shows that the high strength prestressed anchor of the mine roadway has the remarkable problem of the prestress loss,and the paper analyzes the cause of the problem,puts forward the method to solve the problem,reaches the design requirements of the stretch locking value,the engineering proves that the expected effect is achieved.
工程实践表明,煤矿巷道的高强预应力锚杆存在显著的预应力损失问题,并对其产生的原因进行了详细分析,提出了解决问题的办法,以达到设计所要求的张拉锁定值,经过工程验证,达到了预期的支护效果。
补充资料：半煤岩巷掘进
见煤巷掘进。
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