【摘要】 首先根据节理岩体的损伤机制 ,建立了三维弹塑性损伤本构模型反映节理岩体的损伤变形特性 ,然后考虑节理岩体的岩锚支护效应 ,建立了空间损伤锚柱单元模型模拟锚杆的支护效果 ,最后将建立的模型应用于三峡船闸高边坡 ,进行了边坡加锚节理岩体开挖卸荷三维非线性有限元计算 ,获得了一些有益的工程结论更多还原

【Abstract】 According to damage mechanism of jointed rockmass, a 3 D elastoplastic damage constitutive model is firstly established to reflect damage deformation properties of jointed rockmass. Secondly, considering rock bolt supporting effect, we establish a cylindrical damage rock bolt element model to simulate reinforcing effect of bolts in intermittent jointed rockmass. Finally, the proposed models have been applied to the stability analysis of the high slope of the Three Gorges shiplock under construction, and the 3 D non linear FEM of bolted slope rockmass gives some useful conclusions of engineering.更多还原