文章基本信息

标题：THREE-DIMENSIONAL NUMERICAL ANALYSIS ON EXCAVATION AND SUPPORT OF DEEP PIT NEAR THE SUBWAY TUNNEL BY COMPUTER SIMULATION TECHNIQUE
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作者：DAPENG ZHU ; YUNDIAN LIN ; ECHUAN YAN 等
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2012
卷号：45
期号：2
页码：621-626
出版社：Journal of Theoretical and Applied
摘要：Computer simulation technique was an effective method to analyze the influence of pit excavation on the stress-strain of soil around pit. Based on ANSYS and FLAC simulation software, in order to ensure the safety of building and subway tunnel nearby the pit excavation, the processes of excavation and support of deep foundation pit were simulated by the finite difference method, this paper obtained stress and deformation characteristics of the soil around pit and underground structures such as subway tunnel. The results showed that the method reflected interaction effects of retaining structure and soil in excavation process, and it could predict stress-strain and stability accurately when the pit was excavated to the designed depth. The study provided a scientific basis for pit design and safety assessment of pit excavation near the subway tunnel.
关键词：Excavation; 3-D Simulation Analysis; Subway; Pit Deformation; Support Structure