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《Chinese Journal of Underground Space and Engineering》 2012-03
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Research of the Dynamic Deformation Influence of Pile Group Induced by Adjacent Shield Driving

Zhao Honghua,Chen Guoxing(Institute of Geotechnical Engineering,Nanjing University of Technology,Nanjing,210009,China)  
The numerical analysis is used to study the dynamic deformation influence of pile group by adjacent shield construction of tunnel on light-railway line 1 in Suzhou city.The result of numerical simulation shows that the lateral deformation of single pile in the group pile deviates from that of the tunnel,and the pile group cap deviating from tunnel leans,when the shield excavation face approachs to pile group.When the face arrives at the single pile in the pile group,the lateral deformation of single pile is the greatest at the tunnel axis,and the cap bidirectionally leans.When the face is far from the pile group,the lateral deformation of single pile changes a little,and the uneven settlement of cap decreases.With the shield driving pile goup moves along the driving direction,the single pile deformation along axial direction of tunnel is the greatest at the tunnel axis.When the pile end of pile group is at and above the tunnel axis,the cap unilaterally leans to ward the tunnel.When the pile end is below the tunnel axis,the cap bidirectionally leans.
【Fund】: 江苏省六大人才高峰计划(06-F-008)
【CateGory Index】: TU473.1
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