土压平衡盾构长距离穿越群房基础时的微扰动施工技术研究

Study on Weak Perturbation Construction Technology of Earth Pressure Balance Shield with Long-Distance Passing Through Dense Building Foundations

当盾构线路需穿越密集建筑基础时,如何减少土层扰动,有效控制建筑物沉降,已成为当下盾构施工的一个重要课题。以上海轨道交通15号线19标上海西站站——铜川路站区间为实例,分析探讨了土压平衡盾构机长距离穿越群房基础时的微扰动施工关键技术。

When the shield route has to pass through the dense building foundation, how to reduce soil disturbanee and effectively control the building settlement has become an important topic of current shield construction. Taking the Shanghai West Railway Station Tongchuan Road Station section, the 19th bidding section of Shanghai Rail Transit Line 15 as an example, the weak perturbation key construction technology of earth pressure balance shield with long-distance passing through dense building foundations are analyzed and discussed.