淤泥海砂混合料海堤地震动力响应数值模拟

本文将淤泥与海砂进行混合,制备了淤泥海砂未固化混合料,又掺入水泥制备固化混合料,用于分析地震作用下海堤的动力响应。通过有限元软件Geo-studio分析地震荷载作用下海堤的动力响应,结果显示：采用未固化混合料填筑的海堤在地震作用下的稳定安全系数不能满足规范要求；而固化混合料填筑的海堤,能够减小海堤在地震作用过程中产生的加速度、液化破坏范围和震后永久位移,并且海堤在静力状态和地震荷载作用下均能够满足规范规定的稳定性要求。

Numerical Simulation of Dynamic Response of Seawall with Subsea Sand-Silt Mixture

In this paper, subsea sand-silt unsolidified mixtures were prepared by mixing silt and subsea sand, and cement was added to prepare solidified mixture, in order to analyze the dynamic response of coastal levee under seismic load. Using the finite element software Geo-studio, the dynamic response of coastal levees with seismic load was studied, the results show that the stability safety factor of coastal levee filled with unsolidified mixtures cannot meet the requirements of the standard under seismic load, while the coastal levee filled with solidified mixture can reduce the acceleration amplitude, liquefaction damage range and permanent displacement of the coastal levee, and the coastal levee can satisfy the demands of stability under static and seismic load.