摘要
土石坝建设过程中,坝坡稳定性一直都是土石坝工程设计的关键之一。本文在考虑土石坝渗流条件,坝体体系组成的复杂、非线性的特征的基础上,采用有限元强度折减法对土石坝进行有限元数值模拟。通过分析不同强度参数下土石坝坝坡范围内的塑性应变能,证明了突变理论应用于土石坝稳定问题分析的有效性,为土石坝的稳定计算提供了一种新方法。
Dam slope stability has been one of the keys to earth-rock dam engineering design in earth and rockfill dam construction process. In the paper,finite element strength subtraction method is adopted for simulating finite element numerical values on the basis of considering earth-rock dam seepage condition is considered,the dam system composition complexity and nonlinear characteristics. Effectiveness of applying catastrophe theory in earth-rock dam stability problem analysis is proved through analyzing plastic strain energy within earth-rock dam slope scope under different strength parameters,and a new method is provided for earth-rock dam stability calculation.
出处
《水利建设与管理》
2015年第12期24-27,34,57,共6页
Water Conservancy Construction and Management
关键词
土石坝
突变理论
渗流
有限元
earth-rock dam
catastrophe theory
seepage
finite element
