公路轻型砌块式挡土墙受力特性及设计计算方法研究

Analysis and Design of Light Duty Concrete Block Highway Retaining Wall

提出一种运用于公路的轻型砌块挡土墙 ,对其结构体系及组成进行了概述。利用Marc有限元程序对局部砌块单元以及整体结构的变形及受力进行了受力分析 ,对该挡土结构的整体设计计算及稳定性分析方法进行了探讨。分析结果与工程实用经验表明 ,H形砌块挡土结构能充分利用材料的抗压性能 ,施工速度快、排水性能良好。

A new type of light duty highway retaining wall constructed using interlocked H type concrete blocks is proposed, followed by the description of structure and composition. The behaviors of the block unit and the wall as a whole are then analyzed using finite element program Marc. Based on the analysis, design calculation and stability analysis methods of the retaining wall are discussed and relevant formulae are provided. Results of analysis and practices in engineering indicate that the retaining wall with interlocked H type concrete blocks can fully utilize the high compressive strength of concrete in addition to such advantages as speedy construction, improved drainage, large allowable deformation and differential settlement, and is suitable for mass production and extensive application.