PDF(515 KB)
Discussion on Reasonable Distance of Tunnel with Small Spacing in Ⅴ Grade Rock
ZHANG Gui-Sheng, FENG Wen-Jian, LIU Xin-Rong, SHU Zhi-Le
Chinese Journal of Underground Space and Engineering ›› 2009, Vol. 5 ›› Issue (3) : 582-586.
PDF(515 KB)
PDF(515 KB)
Discussion on Reasonable Distance of Tunnel with Small Spacing in Ⅴ Grade Rock
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