Analysis on Spatial Distribution of Displacement Influenced by Pile Construction Near Large Diameter Foundation of Metro Tunnel in Operation
Based on the pile test project of a viaduct foundation in Hangzhou,the following results are obtained through the analysis of the field measurement:The influence range of construction of large diameter pile in soft soil layer(D=1.5 m)on the adjacent existing operating tunnel is 0.33-0.50 H(H is pile length).The sensitivity of near-pile tunnel to the influence of foundation pile construction is relatively higher than that of far-pile tunnel,and the change rate is about 1.5-2.6 times in the same period.Foundation pile construction has little effect on the far right line tunnel.
万方数据
维普
