盾构穿越建构筑物地表沉降控制关键技术研究——以苏州地铁11(原S1)号线花桥站—花溪公园站区间隧道为例

Research on Key Technologies for Controlling Surface Settlement of Shield Tunneling Through Buildings— Taking the Tunnel between Huaqiao Station and Huaxi Park Station on Suzhou Metro Line 11 (formerly S1) as an Example

目前全国地铁施工建设如火如荼,各大城市均已投入建设多条地铁线路,新建地铁穿越重要建构筑物已成为地铁建设不可避免的重要课题。以苏州地铁11(原S1)号线花桥站—花溪公园站区间隧道盾构长距离穿越建构筑物为背景,研究了盾构在全断面淤泥质粉质黏土层中下穿重要建构筑物的施工技术措施和盾构参数合理取值,对于类似地层条件下的盾构穿越既有建构筑物问题具有指导意义。

At present,the national subway construction is in full swing,and major cities have invested in the construction of a number of subway lines,and the construction of new subway through important structures has become an inevitable and important topic of subway construction.In this paper,based on the background of the long distance shield crossing of the structures between Huaqiao Station and Huaxigongyuan Station of Suzhou Metro Line 11(former S1),the construction technical measures and reasonable values of shield parameters for shield tunneling through important structures in the silty clay layer of the whole section are studied,which has guiding significance for shield tunneling through existing structures under similar stratum conditions.