摘要
Abstract
The entrance of Mopanshan Tunnel of Dali Section of the Central Yunnan Water Diversion Project is located in the soft rock deformation hole section.The import is connected to the Zhouguankou culvert.It is used to excavate the hidden culverts,and the high slope of the hole face is formed through the excavation of the hidden culverts.Complex geological conditions lead to protruding deformation;plus the shallow opening of the hole is the buried section that underpasses through the provincial road,increasing the difficulty of tunnel con-struction.In order to ensure the smooth progress of the project,the construction of the cave face slope and un-derpass section is carried out through optimization of support systems and strengthening process control,etc.,and detailed explanation is given in accordance with geological conditions,high slope slope ratio,underpass depth,stress load,etc.,in order to provide reference for similar projects.关键词
滇中引水工程/软岩隧洞/洞脸高边坡/下穿省道/施工控制Key words
Central Yunnan Water Diversion Project/soft rock tunnel/high slope of cave face/underpass provin-cial road/construction control分类
建筑与水利
