论文部分内容阅读
在基坑开挖的模拟分析中,考虑土体的卸荷膨胀及加载硬化等性质,选用一种更适用于土体开挖的Hardening-Soil本构模型,对深基坑开挖阶段支护结构变形特性进行了数值模拟,计算得出不同开挖阶段的内支撑的轴力变化、围护桩的力矩变化、以及桩的水平位移的变化,计算结果很好地反映了土的特性,为工程设计与施工提供了依据。
In the simulation analysis of foundation pit excavation, taking into account the unloading and expansion of the soil and the properties of load hardening, a more suitable Hardening-Soil constitutive model for soil excavation is chosen to support the excavation of deep foundation pit The deformation characteristics of the structure are numerically simulated. The axial force variation of the internal support, the torque change of the retaining pile and the horizontal displacement of the pile during different excavation stages are calculated. The calculated results reflect the characteristics of the soil well and are Engineering design and construction provided the basis.