现有海堤稳定性分析及地基加固案例

采用历史勘察资料分析海堤现状的边坡整体稳定性,往往出现安全系数计算值较低,与旧堤现状稳定性不相符的情况,严重影响海堤加固设计方案的确定。基于一个旧海堤稳定分析和新建海堤案例,对典型断面加密布置勘察点,结合对堤底地基固结度和强度增长量的估算,重点分析堤底下方地基抗剪强度。在判明海堤现状稳定性的基础上,大大优化了海堤加固方案,为类似工程的勘察设计提供参考。

Analysis of existing seawall stability and case of foundation reinforcement

Using historical investigation data to analyze the overall stability of the existing sea embankment,the calculated value of safety factor is often low,which is not consistent with the stability status quo.The situation seriously affects the design of the seawall reinforcement.Based on an old sea embankment stability analysis and new sea embankment design case,this paper densely distributes the spacing of investigation points of typical sections.Combined with estimation of the consolidation degree and undrained shear strength increment of the ground,this paper analyzes the shear strength of foundation beneath the embankment emphatically.On the basis of determining the stability of the status quo of seawalls,the seawall reinforcement scheme is greatly optimized,which can provide reference for the investigation and design of similar projects.