地铁盾构影响下桥梁下部结构设计

On the Design of the Substructure of a Bridge Under the Influence of the Subway Shield

以天津市海沽道工程项目为例,分析了规划地铁1号线延长线与海沽道主线之间的相对位置关系;采取了特殊的桥梁下部结构设计,以满足地铁盾构施工过程中要求的最小安全距离;在施工中采取了一定的防护措施,把地铁盾构对本工程的影响控制在安全范围内。

With the project of the Haigu Road in Tianjin as a practical example, and upon the basis of analyzing the relationship between the planned extension line of Line One of Tianjin Subway and the Haigu Road in the relative position, the design of a special bridge substructure is adopted in order to meet the requirement of the minimum safety distance needed in the course of the subway shield construction. With certain protective measures taken in the course of construction, the effects of the subway shield on this project are always kept within the scope of safety.