摘要
采用ANSYS有限元法和FLAC方法分析边坡的应力应变过程,对其稳定性作出评价。有限元法采用邓肯E-B模型及理想弹塑性广义米赛斯模型来构造边坡岩土体本构关系;建立5个典型边坡剖面的二维模型;用理想弹塑性Mohr-Coulumb模型,模拟不断折减岩体抗剪强度系数时岩土体单元的应力应变关系,再利用ANSYS和FLAC方法计算出边坡各剖面的安全系数;将这两种方法的模拟结果进行分析比较,最后给出评价边坡的稳定性和治理方案。
Evaluation of stability of the slope stability is made by analyzing the stress-strain process of slopes with Finite Element Method （ANSYS）. In the Finite Element Method, Duncan E-B model and ideal elastoplastic generalized Mises model is utilized to establish slopes＇ rock constitutive relationship. After development of the slope of the 5 typical profiles two-dimensional models, ideal elastic-plastic Mohr-Coulumb model for simulation of rock and soil unit＇s stress strain relation is simulated by continuous reduction of rock shear strength coefficient, the slope safety coefficient of each section can be calculated by using ANSYS and FLAC methods. The simulation results are then analyzed and compared by the above two methods. Finally, the evaluation stability of slope and treatment scheme is given.
出处
《化工矿物与加工》
CAS
北大核心
2012年第6期27-30,共4页
Industrial Minerals & Processing
