摘要
为提高海底边坡模型计算分析的效率,探讨了实际工程中建立边坡有限元模型的参数化建模方法,实现了海底边坡模型的自动生成、自动分层及附属性等功能;并采用强度折减法进行不同坡角下边坡稳定性评价,同时在计算中考虑了因波浪作用的海床土应力的影响,表明当水深较浅时必须要考虑波浪影响。研究结果可为实际工程中的海洋边坡稳定性评价提供参考。
In order to improve the efficiency of calculation and analysis of submarine slope model,this paper discusses the parameterized modeling method of establishing slope model with finite element in practical engineering,and realizes the functions of automatic generation,automatic stratification and giving corresponding properties of the submarine slope model.The SSRF(Shear Strength Reduction Factor)method is used to evaluate the slope stability under different slope angles.At the same time,the influence of seabed soil stress due to wave action is considered in the calculation,which indicates that the wave influence must be considered when the water depth is shallow.The results can provide reference for the stability evaluation of submarine slope in practical engineering.
作者
祁磊
姚志广
许浩
邓海峰
李春
QI Lei;YAO Zhiguang;XU Hao;DENG Haifeng;LI Chun(CPOE Research Institiute of Engineering Technology,Tianjin 300451,China;Key Laboratory of Offshore Engineering,CNPC,Tianjin 300451,China)
出处
《石油工程建设》
2020年第6期20-23,共4页
Petroleum Engineering Construction
关键词
海底边坡稳定性
参数化建模
海床波压力
slope stability of submarine slope
parametric modeling
seabed pressure under wave action
