铁道科学与工程学报2012，Vol.9Issue(3)：45-50,6.
不衬砌水工隧洞围岩稳定性数值模拟分析
Numerical simulation analysis for surrounding rock stability of unlined high pressure hydraulic tunnels
摘要
Abstract
Aiming at the phenomena that hyperosmolar role will not only change the stress state of rock and soil, but also cause the rock splitting , destroy the original structure of the rock. Based on the coupled fluid - solid theorem, numerical analysis for the stability of tunnel surrounding rock was done with fast Lagrangian analysis of continua in three - dimension (FLAC3D). Based on the surrounding rock stability considering percolation and the surrounding rock characteristics with the internal water fluid as main research aspects, the stress field and displacement field feature after rock excavation, feedback of excavation on seepage field, evolution trend of failure characteristics and hydraulic characteristics of the tunnel under the role of internal water was achieved. The research results can provide a theoretical basis for corresponding safety measurement in construction process and waterproofing of tunnel in aquifer condition.关键词
不衬砌/水工隧洞/稳定性分析/数值模拟Key words
unlined high pressure/ hydraulic tunnels/stability analysis/numerical simulation分类
建筑与水利引用本文复制引用
刘新颖,曹平,刘涛影,梅慧浩,宁果果..不衬砌水工隧洞围岩稳定性数值模拟分析[J].铁道科学与工程学报,2012,9(3):45-50,6.基金项目
国家自然科学基金资助项目(51174228) （51174228）
中南大学研究生学位论文创新基金资助项目(2011ssxt271) （2011ssxt271）
