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本文分析及阐述了有限元强度折减法的原理和实际应用,以某高层建筑基坑边坡中一支护段为研究对象,采用Midas GTS建立相应的有限元分析模型,运用SRM法(强度折减法)对基坑边坡进行二维数值模拟分析。通过对比基坑边坡在无土钉及岩钉支护和有土钉及岩钉支护情况下的稳定性安全系数、整体位移及最大剪切应变云图,对基坑边坡整体稳定及支护效果作出分析及评价,为类似基坑边坡工程稳定性分析及设计提供参考,具有一定的实用性。
This paper analyzes and expounds the principle and practical application of finite element strength reduction method. Taking a retaining section in the slope of a foundation pit of a high-rise building as the research object, a finite element analysis model is established by using Midas GTS. The SRM method Subtraction) Two-dimensional numerical simulation analysis of foundation pit slope. By comparing the stability safety factor, the overall displacement and the maximum shear strain cloud map of the pit slope without soil nails and rock nails and with soil nails and rock nails support, the stability of the foundation pit slope and the branch Protection effect analysis and evaluation for similar foundation pit slope stability analysis and design provide a reference, has a certain practicality.