疏桩基础在水利工程中应用与分析

Application and Analysis of Pile Foundation in Hydraulic Engineering

疏桩基础是桩与土共同承担外部荷载,用料省,施工快,工程造价低;应用于软土地基上的水工建筑,主要解决沉降过大或相邻建筑的沉降差过大,或天然地基承载力不足。疏桩基础与普通桩基不同,具有复合地基特征,具有使桩基与天然地基互补的作用,桩间土始终能与基础沉降一致,共同工作,不会出现基础脱空形成渗流通道现象。通过受力分析,从受力机理论述了疏桩基础的设计,并提出了沉降和承载力计算。以上海某水闸为例,对软土地区水利工程如何应用疏桩基础作了阐述,旨在为疏桩基础在水利工程中的应用提供参考。

The pile foundation is the external load of pile and soil, and it saves material has high construction speed and low project cost. The hydraulic structure applied to soft soil foundation mainly solves the settlement difference of large settlement or adjacent buildings, or insufficient bearing capacity of natural foundation. Hydrophobic pile foundation, unlike ordinary pile foundation, has the characteristics of composite foundation, with the pile foundation and natural foundation complementary role, soil between piles have always been able to agree with foundation settlement, work together, there will not be based pavement seepage channel. Through the force analysis, the design of the pile foundation is discussed through the mechanical mechanism, and the settlement and bearing capacity calculation are put forward.Taking a water sluice in Shanghai as an example, this paper expounds how to apply the sparse pile foundation for the water conservancy project in the soft soil area, aiming at providing reference for the application of the pile foundation in the water conservancy project.