Numerical Simulation of Ground Subsidence Due to Tunnel Excavation for Wuhan Subway
详细信息
- 责任者：Yang Fulin (Fourth Harbor Engineering Institute ; CCCC ; Guangzhou 510230 ; China) ; Liu Yonglin
- 刊名：Journal of Engineering Geology
- 出版年：2013
- 卷期：21(1)
- 关键词：隧道 ; tunnels ; 地面沉降 ; land subsidence ; 湖北 ; Hubei Province
- 页码：p.85-91
- 图表：illus., 2 tables, 17 refs.
- 分类号：1702
- issnNo：ISSN1004-9665
- isbnNo：CN11-3249/P
摘要
It has been well known that tunnel excavation of subway in urban area can cause ground settlement.Excessive settlement would threaten safety of the tunnel itself and its surrounding buildings.Therefore,it will be of important practical significance to effectively predict and reasonably control this kind of subsidence.According to the excavation in Hu-Ming Section of Wuhan subway,the MIDAS/GTS software is used to build the model of the tunnel excavation.Surface subsidence caused by tunnel excavation is computed,and compared with the measured result.According to the situation of the corresponding ground and building during excavation process,the optimization of the preparative regimens on the surrounding rock excavation is carried out for building the optimization model of the tunnel excavation.The simulation results show the optimized surface subsidence is still in the safe range.The results would offer reference for similar projects in controlling the surface subsidence.
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