【摘要】 万家寨引黄工程北干线1号隧洞,长43.9km,已完成5.47km,其余洞段即将施工。该隧洞埋深较大,且大部洞身位于区域地下水位以下,工程地质条件极为复杂,通过充分分析其工程地质问题,提出隧洞掘进施工对策。更多还原

【Abstract】 The No.1 tunnel in the north main line of Wanjiazhai YRDP is 43.9 km long. 5.47 km of it has been completed. The construction of the remainder is going to be constructed. The buried position deep; the main part of the tunnel is below the level of ground water. So the engineering geology situation is quite complicated. By the detailed analysis of engineering geology, the construction methods of tunnel driving are brought forward.更多还原