基于点的有偏生成的二维边坡滑移面搜索

为解决边坡滑移面搜索中运算量大的缺点,提出一种基于灰色系统理论中点的有偏生成的二维边坡滑移面搜索的新方法。新方法可以通过点的生成模拟各种形式曲线,生成曲线无较大震荡,符合工程实际。同时,新方法将小波去噪分析引入到对拾取后的边坡滑移面的处理中,在不影响精确的前提下大大降低了运算量。通过3个不同类型算例与其他拾取方法进行观察和对比,得出新的搜索方法与以往方法所拾取的滑移面基本吻合,边坡稳定性系数误差分别为0.67%、1.06%、0.823%。结果表明这种滑移面生成和处理的新方法不但能模拟各种形式的滑移面同时还可以减少程序运算量,适用于多种形式的边坡的安全稳定性分析。

Searching for Slip Surface of Tow-dimensional Slope Based on the Partial Generation of Point

In order to solve the disadvantage of large amount of computation in the search of slope slip surface, a new method for searching slope slip surface of two-dimensional was proposed based on partial generation of points in gray system theory. The new method can simulate all kinds of form curves through the generation of the point, and the curve is not large and the vibration is in accordance with the engineering practice. At the same time, wavelet analysis is introduced to the processing of the slip surface, which greatly reduces the computational complexity without affecting the accuracy. Through comparing the new method with the traditional method by three examples, the slip surfaces of the two methods are approximately the same. The relative errors of slope stability coefficients are 0.67%, 0.96% and 0.823% respectively. The results show that the new method can not only simulate various forms of sliding plane, but also reduce the amount of program operation. The new method can be used to analysis the safety and stability of slope in various forms.