加筋间距对加筋挡土墙工作性态的影响

Effect of bar spacing on performance of reinforced soil retaining walls

在应用有限差分软件FLAC3D对某工程实例挡土墙成功模拟的基础上,通过改变加筋间距,分析其对挡土墙工作性态的影响.结果表明,挡土墙面板侧向位移及加筋层拉应力随着加筋间距的减小而减小.与极限平衡原理分析的结果比较表明,采用FLAC3D数值模拟能更加精确合理地分析不同的加筋间距对挡土墙稳定性的影响.

A finite differential program FLAC3D was successful used for simulation of the reinforced soil retaining wall of a practical project, and the effects of bar spacing on the performance of the retaining wall were analyzed. The result shows that,with the decrease of bar spacing, the lateral displacement of the face slab and tensile stress in the reinforced layer of the retaining wall decrease. The comparison of the analyzed result with that of the method of limiting equilibrium principle shows that FLAC3D is accurate and appropriate for analysis of the effects of bar spacing on the stability of reinforced soil retaining walls.