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| Research progress of foundation pit project impact
on neighboring subway structure |
| 1. School of Rail Transportation, Soochow University, Suzhou, Jiangsu 215137, China; 2. 4th Geological Brigade of Jiangsu Geology ＆ Mineral Exploration Bureau, Suzhou, Jiangsu 215129, China |
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Abstract The foundation pit project can cause additive deformation and internal force towards surrounding existing subway structure and bring troubles to metro operation and securities. According to the literature review, current studies mainly focus on foundation pit supporting system, horizontal and vertical size, reinforcement type to foundation, excavation method and relative position between foundation pit and existing subway tunnel. Based on previous achievements, further research direction and contents were provided with coupled effect of deep excavationfoundation pit retainingstructural stiffness, calculation model and parameter selection. The influence factor, the mechanism and the enhancing accuracy of monitor instrument were discussed, and the monitor range and content expanding should be conducted.
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2018, Vol. 39 
