结合基坑支护结构设计计算U型槽

Calculation of U-type Groove in Structure Design by Foundation Pit Support

以天津市某工程为例,简要总结和介绍基坑支护和封闭式路堑(即主体结构为U型槽)的结构型式与设计计算理论。分析以往独立计算U型槽与基坑支护方法的不足,尤其在高侧墙U型槽设计中更加显著,提出此类型设计应考虑基坑支护结构的支挡作用,使U型槽结构设计更加合理,造价适宜,为相似工程的设计计算提供参考。

Taking a project of Tianjin as an example, the article briefly sums up and introduces the structural type and design calculation theory of foundation pit support and closed cutting(the main structure as U-type groove), analyzes the shortcomings in the independent calculation method of U-type groove and foundation pit, especially in the design of high side wall of U-type groove. The article proposes that this kind of design should consider the retaining action of pit support structure so as to make the structural design of U-type groove more reasonable and its cost more suitable, which can be referred for the design and calculation of the similar projects.