南昌工程学院学报2018，Vol.37Issue(1)：28-32,5.
隧道竖井开挖过程FLAC3D的数值模拟
Numerical simulation of shaft tunnel excavation process with FLAC3D
摘要
Abstract
In view of the problems of deformation and destruction that occur in the process of the shaft tunnel excavation on Xiamen Amoy Circular Road,we take the geological survey data as the background to carry the three-dimensional numerical simulation analysis of the tunnel vertical shaft excavation process using the finite difference software FLAC3D.The calcula-tion results show that the maxium vertical displacement of the shaft bottom heave that appeared at the excavation depth of 27 m was 66.2 mm;that the maximum displacement of the shaft sidewall that appeared at residual clay layer was 8.37 mm;and that the range of plastic zone in the vertical direction in the process of excavation extended to-29 m,horizontal expand to -14 m to 14 m respectively.Finally,we suggest improving the strength of support in plastic area during the vertical shaft exca-vation process and decreasing the deformation of the surroundings.关键词
隧道竖井开挖/三维数值模拟/应力/变形Key words
shaft tunnel excavation/3D numerical simulation/stress/deformation分类
矿业与冶金引用本文复制引用
刘优平,张晓炜,刘泽华..隧道竖井开挖过程FLAC3D的数值模拟[J].南昌工程学院学报,2018,37(1):28-32,5.基金项目
国家自然科学青年基金资助项目(51409140) （51409140）
江西省自然科学基金资助项目(20151BAB213027) （20151BAB213027）
瑶湖学院学生创新基金项目(YHCX-16-6-2) （YHCX-16-6-2）
