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利用FLAC3D对一座组合式加筋格宾路堤挡墙进行了施工过程仿真,研究了施工过程中加筋土挡墙的侧向变形、筋带拉应力和挡墙稳定性的变化。结果表明,施工过程仿真分析可以再现施工过程中挡墙内部的应力应变发展过程;随着挡墙施工的进行,挡墙的变形逐渐增大,最大变形的发生位置由地基土体逐渐向挡墙面墙转移;筋材的拉应力逐渐增大,但不同部位筋材的拉应力分布规律不同;随着挡墙高度增加,挡墙的稳定性减小。
The construction process of a combined reinforced Gabin embankment retaining wall was simulated by FLAC3D, and the lateral deformation, the tensile stress of tendons and the stability of the retaining wall during construction were studied. The results show that the simulation analysis of the construction process can reproduce the process of stress and strain development inside the retaining wall during the construction process. With the construction of the retaining wall, the deformation of the retaining wall gradually increases. The location of the maximum deformation gradually increases from the foundation soil to the retaining wall The tensile stress of tendons increases gradually, but the distribution of tensile stress in different parts of tendons is different. With the increase of retaining wall height, the stability of retaining wall decreases.