基于实际工程的扶壁式排桩三维有限元模拟

Three-Dimensional Finite Element Simulation for Soldier Pile with Counterfort Based on Practical Engineering

为分析扶壁式排桩的内力分布及变形特征,并与双排桩进行比较,笔者基于实际工程,运用大型有限元软件ABAQUS进行模拟分析,并详细说明了初始地应力的平衡方法及模拟基坑开挖的关键步骤。模拟分析结果表明:在相同条件下,扶壁式排桩在建筑空间利用、支护效果方面优于双排桩;初始地应力平衡和基坑开挖的模拟效果显示了基坑开挖的影响范围,为合理布置监测点提供参考。该研究成果可为扶壁式排桩在类似工程中的应用分析提供理论参考和借鉴。

In order to analyze the internal force distribution and deformation characteristics of soldier pile with counterfort and compare them with double-row piles, based on the actual project, the authors use the large finite element software ABAQUS to simulate and analyze, and explain in detail the balance method of initial ground stress and the key steps of simulating foundation pit excavation. The simulation results show that: under the same conditions, soldier piles with counterfort are better than double-row piles in building space utilization and supporting effect;the simulation results of initial ground stress balance and foundation pit excavation show the influence range of foundation pit excavation and provide reference for reasonable arrangement of monitoring points. The research results can provide theoretical reference and reference for the application analysis of soldier pile with counterfort in similar projects.