Give collectivity distortion trend in zone of swelling wall rock tunnel.
给出膨胀土围岩地区隧道变形的总体趋势.
互联网
A full face rock tunnel boring machine was highly sensitive to geologic situation.
全断面岩石掘进机施工对地质地层状况非常敏感.
互联网
There is some instructional signification to soft rock tunnel project and practice of mine.
对煤矿软岩巷道工程实践有着一定的指导意义.
互联网
It is very difficult to support the coalmine soft - rock tunnel.
煤矿软岩巷道是很难支护的巷道,其支护问题一直困扰着煤矿的生产和建设.
互联网