The tunnel goes through complex geological conditions in Maoba syncline, Tongmaling anticline and Lengshuihe shallow-buried section.
该隧道穿越地质复杂的毛坝向斜、桐麻岭背斜和冷水河浅埋段。
2
By means of the analysis of the quality of the surface water and ground water in the syncline core above the tunnel, the flow modes of the surface water and ground water in the syncline are discussed.
There is high pressure and abundant water in MaoBa syncline where Yuanliangshan tunnel lies, that brings a great many difficulties for design and construction of the tunnel.