铁道科学与工程学报2017，Vol.14Issue(1)：110-116,7.
层状炭质页岩隧道底鼓机理分析
Mechanism analysis of floor heave in layered carbonaceous shale tunnel
摘要
Abstract
The invert quality, tunnel floor water bearing condition, the rock strength of carbonaceous shale tun-nel, water softening and expansion and the corrosive groundwater of the inverted arch concrete have been investi-gated and tested through field investigation and laboratory experiment method to analysis the mechanism of floor heave in a layered carbonaceous shale highway tunnel in Chongqing. A Flac3d numerical model has been built for the further analysis of the distribution of tunnel surrounding rock displacement, stress and seepage under the ac-tion of surrounding rock pressure and water pressure. The results show that the carbon shale tunnel floor heave is the result of the comprehensive effect of low strength of tunnel surrounding rock , rock softening , water pressure and the carbonaceous shale rheological.关键词
炭质页岩/隧道/底鼓/数值分析Key words
carbonaceous shale/tunnel/floor heave/numerical analysis分类
交通工程引用本文复制引用
腾俊洋,唐建新..层状炭质页岩隧道底鼓机理分析[J].铁道科学与工程学报,2017,14(1):110-116,7.基金项目
煤矿灾害动力学与控制国家重点实验室自主课题重点资助项目(2011DA105287-ZD201504) （2011DA105287-ZD201504）
