ZHANG Guo-Liang, HAN Xue-Feng, LI Yuan-Hai, LIU Qiang-Fang.
Study on Safety State of Existing Highspeed Railway Tunnel Influenced by above Expressway Upgrade Construction SUN Mingzhi, DAI Wenting, HAO Baizhou, WU Hao.įluidstructure Interaction Analysis on Ventilation Passage of Metro Works Constructed by 10pilotheading CRD Method Numerical Simulation of Excavation Sequence of Heading of Singletube Doubledeck Tunnel Based on Solidfluid Coupling Numerical Analysis of Interaction of Excavation of Four Adjacent Shield Tunnels: A Case Study on Tianjin Metro XU Zichuan, LI Jian’gao, WANG Changhong. ZOU Jinjie, CHEN Gang, GAN Penglu, SHEN Yaojian.Īnalysis of Ground Surface Settlements Induced by Construction of Shallowcovered Mined Tunnel in Waterrich and Softweak Strata: A Case Study of Zizhi Tunnel in Hangzhou XU Dongqiang, YAN Peng, LI Yanqi, WANG Keyi.ĭetermination of Ultimate Relative Displacements of Primary Support of Mountaincrossing Highway Tunnel TANG Xiaojie, SHI Lei, CHEN Jiawei, PENG Zhen, LI Yuanhai.Īnalysis of Surrounding Rock Deformation Control of Largespan Metro Tunnel Crossing Fault by Combined Tunneling Method Research on Creation Method of Geotechnical Engineering Threedimensional Geological Model Based on BIM Technology Key words: solidfluid coupling, seepage model, FLAC3D, geotechnical engineeringĬHU Shili, XIA Mianli, FENG Mingming, JIANG Hualong, YING Sheng. The conclusions can be applied to foundation engineering and underground engineering, and the paper can provide reference for similar projects. So far, the calculation of solidfluid coupling is almost based on FLAC3D in China. The solidfluid coupling process in FLAC3D is realized by adjusting the stiffness ratio and switching mechanicsfluid process. 2) The load sharing ratio of fluid is based on the stiffness ratio and time. The conclusions drawn are as follows: 1) For model A and model C, the soil skeleton carries all loads for other 2 models, the fluid carries partial load too. The total stresses and seepage field distributions of the 4 construction cases are compared. Four construction cases based on the 4 seepage models are designed, with a 100 m×100 m×10 m isotropic elastic cube as an example. It is necessary to make stress analysis on the 4 seepage models, so as to choose a simple, rapid and rational model selection method. There are different selection methods in different references. The seepage field distribution in threedimensional space is complicate as a result, it is difficult to decide a quantitative yardstick.
There are 4 seepage models in the FLAC3D finite element software it is decided by selecting proper seepage models whether the result of numerical calculation is right or not.