考虑既有地下连续墙影响的地铁车站外墙优化设计

Optimization Design for Metro Station Wall Influenced by the Existing Diaphragm Wall

深入分析了既有深基坑地下连续墙的实际刚度对车站结构设计内力及实际配筋的影响,考虑了承载力极限状态、正常使用极限状态和人防组合状态等3种情况的极限包络。在车站结构设计中,考虑包括地下连续墙在内的围护结构共同作用进行优化设计,可有效提高材料利用率,节约社会资源。

The influence of the actual underground diaphragm wall stiffness of existing deep foundation pit on the internal force of station structure design and the actual reinforcement are analyzed in depth,the ultimate envelope of the limit state of bearing capacity,the limit state in service and the composite state of civil air defense is fully considered.In the design of metro station structure,the optimization of the combined action of enclosure structures,including the underground diaphragm wall will effectively improve the material utilization and save the social resources.