公路重力式挡土墙设计中荷载分项系数取值探析

Exploration and Analysis of Load Component Coefficient Values in the Design of Highway Gravity Retaining Walls

通过分析公路重力式挡土墙设计验算的公式,结合公路重力式挡土墙设计的相关规定,探讨了一般情况下,利用数值计算的量化方式,快速准确选取滑动稳定方程验算、倾覆稳定方程验算、正截面强度和稳定性验算、正截面直接受剪验算中的主动土压力分项系数和垂直恒载分项系数的方法,以期提高公路重力式挡土墙工程设计人员的工作效率,也为相关设计软件开发自动选定荷载分项系数程序提供参考。

By analyzing the formulas for design checking calculations of highway gravity retaining walls and combining the relevant regulations for their design,this paper discusses methods for quickly and accurately selecting the active earth pressure partial factor and vertical dead load partial factor in sliding stability equation checks,overturning stability equation checks,normal section strength and stability checks,and normal section direct shear checks,using quantitative numerical calculations.The aim is to improve the work efficiency of engineers involved in the design of highway gravity retaining walls and to provide a reference for the automatic selection of load partial factor programs in related design software development.