基于尖角突变模型的防洪大堤土体稳定性分析

Stability Analysis of Soil in Flood-control Dyke Based on Cusp Catastrophic Model

分析和判断防洪大堤施工阶段的土体稳定性,对调节施工进度和保证施工安全具有重要意义.根据变形观测数据,获得变形随时间变化的方程.从突变理论出发,利用尖角突变模型进行在建大堤的土体稳定性分析和判断,并采用Excel数据处理和绘图功能、Matlab语言编写程序,实现了土体稳定性的快速评判.实践证明该方法简单有效.

For regulating construction progress and ensuring construction safety, it is important to analyse and judge stability of soil in flood-control dyke under construction. Obtained the deformation equation from the deformation observation data, based on catastrophe theory, the cusp catastrophic model is built, and the stability of soil in flood-control dyke under construction is analysed and esti- mated with our the model. By making good use of the strong function of Excel for data processing and drawing and programing with Matlab, the quick estimation stability of soil is realized. The result proves that the method is simple and effective.