基坑桩锚支护设计新方法

A NewDesign Method of Anchored Sheet Pile Wall for Excavation

摘要:

简要讨论了用于桩锚支护设计的自由端法与固定端法中存在的问题 ,提出了一种新的设计方法。新方法在计算土压力零点以下长度时采用力平衡而不是力矩平衡的方法 ,简化了计算 ,计算结果较趋近于安全、节省的目标。给出了详细计算过程与计算实例。

Abstract:

The problems in the free and fixed earth support methods for thd design of the anchored sheet pile wall for excavation are briefly discussed. A new method for the design is proposed. A forces equilibrium rather than moment equilibrium method is adopted to calculate the length from the point where the stress of the soil down to zero to the bottom of the pile. The calculation is simplified by the new method, and the results approach to the goal of safety and cost saving. The details of the calculation procedures and examples to demonstrate the calculation are presented in this paper.