摘要
以云南某高速公路中段富水隧道为工程背景,基于流固耦合分析理论,对富水隧道围岩稳定性进行分析.利用FLAC3D软件在考虑流固耦合作用和不考虑流固耦合作用的两种情况下,分别对隧道围岩进行三维数值分析,得到了两种情况下隧道围岩的孔隙水压力、应力场和位移场的变化情况,并探讨了隧道渗流场的分布特征,研究了渗流场对应力场分布和位移场变化的影响.研究结果直接指导富水隧道的防排水施工和支护措施的改进提高,对富水地层隧道开挖设计提供一定的理论参考.
Considering a rich water tunnel in Yunnan Province as an engineering background,based on the fluid-structure interaction analysis theory,the rich water tunnel surrounding rock stability is analyzed.FLAC3D software is used with water seepage action or not,the tunnel surrounding rock is considered with 3-d numerical analysis,two cases of surrounding rock pore water pressure are obtained,stress field and displacement field changes,and the tunnel seepage field distribution characteristics are discussed,the seepage field of stress distribution and displacement field changes are studied.Results show that rich water tunnel waterproof and drainage construction and supporting measures are improved,the rich water formation tunnel excavation is designed to provide a certain theoretical reference.
出处
《交通科学与工程》
2013年第2期56-62,共7页
Journal of Transport Science and Engineering
关键词
富水隧道
流固耦合
稳定性分析
FLAC3D
rich water tunnel
fluid and solid coupling
stability analysis
FLAC3D
