某料场高边坡开挖有限元数值模拟研究

Research on Finite Element Numerical Simulation of a Yard High Slope Excavation

根据某料场高边坡的实际地质地形特征,建立了三维边坡开挖数值模型,模拟了该边坡从天然工况到逐级开挖工况下的开挖变形形态、应力状态及边坡稳定性等,并进行了系统的研究.结果表明,数值计算模型能够比较真实地反映边坡实际情况,数值模拟的结果是可靠的、合理的,能够在此基础上对边坡以后的应力场、形变场特征作出较好预测.

According to the actual geological terrain feature of a yard high Slope,we establish a three-di- mensional slope excavation numerical simulation model. The model simulates and systematically studies ex- cavation deformation form and stress state and the stability of the slope from natural condition to excavation condition step by step. The results show that the numerical model can reflect slope actual situation and the result of numerical simulation is reliable and reasonable. The model can make good prediction for the char- acteristics of stress field and deformation field.