敏感环境下岩土混合边坡支护结构对比分析

以敏感环境下某岩土混合高边坡工程为例,通过MIDAS-GTS有限元程序分别建立锚拉式桩板挡墙和双排桩两种支护结构的数值分析模型,对比研究了这两种支护结构的位移和内力分布特征。分析结果表明:两种支护结构均能较好地控制边坡位移,双排桩的内力分布规律较锚拉式桩板挡墙更加简单合理。综合考虑施工难度及工期等要求,确定双排桩为最优支护设计方案。

Comparative Analysis of Rock and Soil Slope Supporting Structure in Sensitive Environment

Combined with a practical high rock and soil slope adjacent to a very important building in sensitive environment, numerical analysis models of anchorage pile-sheet retaining wall and double-row-piles are established separately based on the finite element program MIDAS-GTS and studied the displacement and internal force distribution of two supporting structures.The results show that the displacement of the slope of two kinds of supporting structures can be effectively controlled using two supporting structures. Internal force distribution of double-row-piles is more simple and reasonable compared with anchorage pile-sheet retaining wall. Comprehensively considering the construction difficult and engineering period and other requirements, double-row-piles are the optimal supporting design scheme.