深圳西海堤稳定性分析

Analysis on Stability of Sea Embankment

简要介绍了有限元塑性极限分析下限法、刚体极限平衡法的原理。用下限法构造了深圳西海堤的静力容许应力场 ,由此求出了海堤稳定安全系数的下限解和对应的应力场 ;同时由刚体极限平衡法得到了海堤的抗滑稳定安全系数和对应的临界滑裂面。计算结果说明了深圳西海堤的稳定性是满足要求的。

In this paper the basic theory of lower bound analysis using finite elements and limit-equilibrium method are introduced briefly. Statically admissible stress fields for lower bound analysis of sea embankment of Shenzhen is constructed. Based on the satisfaction of static admissible , the safety factors and stress field of lower bound can be evaluated. At the same time, the safety factor of stability against sliding and critical circule slide surface are obtained from limit-equilibrium method. The results show the stability of sea embankment.