某衡重式挡土墙断面优化设计探讨

Discussion on Optimization Design for the Section of a Balance Weight Retaining Wall

在分析衡重式挡土墙的安全稳定系数和地基土压应力的基础上,对衡重式挡土墙的断面尺寸进行了优化设计,通过分析得出:挡土墙的高度决定了挡土墙的选用类型,在挡土墙设计中应尽可能地使基底的压应力均匀分布,有利于减小墙趾、墙踵基底的压应力比值;通过调整挡土墙墙背坡、墙面坡、墙底斜坡度等相关参数,可优化减小挡土墙的断面面积和基底压应力,有利于提高挡土墙的安全性和经济性。

Based on the analysis of the safety and stability coefficient of the balance weight retaining wall and the foundation soil pressure stress,the optimization design on the section size of the balance weight retaining wall is made. Through the analysis,it is concluded that: the height of the retaining wall determines the selection type of the retaining wall. The pressure stress of the base should be evenly distributed as far as possible in the design of the retaining wall,which is conducive to reducing the pressure stress ratio of the wall toe and the wall heel base. The cross-sectional area and base pressure stress of the retaining wall can be optimized and reduced by adjusting the relevant parameters of wall back slope,wall slope and wall base slope of the retaining wall,which is conducive to improving the safety and economy of the retaining wall.