Control Technologies for Segment Floating of Shield Tunnel in Clay Layer
In recent years,the phenomenon of the segment floating has become more prominent in the construction of urban subways in China during the construction of shield tunnels passing through the clay layer.The lining segment force is uniform or not synchronous grouting material confiiguration is resonable or not,and the thickness of the overlay soil of the shied tunnel segment all have great impacts on the segment floating.This paper detailedly discusses the mechanism and relevant control technologies for the segment floating in the shield tunneling process by simulating the stress state and experimental statistics,efficient control measures are given,which can provide effective guidance and reference for later shield tunnel construction in clay areas.
万方数据
维普
