排桩箱涵结构在软土地基中的应用

Application of Pile Row Box Culvert Structure in Soft Soil Foundation

箱涵广泛应用于市政工程中。常规箱涵采用围护顺作法开挖施工,围护结构作为临时结构物;排桩箱涵结构采用逆作法施工,排桩除了作为支护体外,兼作为永久结构。在软土地基中采用排桩箱涵结构比常规箱涵结构在施工工序、结构安全、环境影响、建设工期和投资造价方面均更有优势。基于工程实例对某排桩箱涵结构进行分析,并论述其取得的效果,为排桩箱涵结构工程的施工提供一定参考。

Box culvert is widely used in municipal engineering.The conventional box culvert adopts the excavation method of retaining along with the retaining structure as the temporary structure;the box culvert structure of pile row adopts the reverse construction method,and the pile row is not only used as the support,but also as the permanent structure.Compared with the conventional box culvert structure,pile row box culvert structure has more advantages in construction process,structural safety,environmental impact,construction period and investment cost.Based on an engineering example,this paper analyzes the structure of a row of pile box culvert,and discusses its effect,which provides some reference for the construction of the pile row box culvert.