An improved harmony search minimization algorithm using different slip surface generation methods for slope stability analysis

Abstract

An improved harmony search algorithm is proposed which is found to be more efficient than the original harmony search algorithm for slope stability analysis. The effectiveness of the proposed algorithm is examined by considering several published cases. The improved harmony search method is applied to slope stability problems with five types of procedure for generating trial slip surfaces. It is demonstrated that the improved harmony search algorithm is efficient and effective for the minimization of factors of safety for various difficult problems, and the method of generating the trial failure surfaces can be important in the minimization process.

Simplified approach for locating the critical probabilistic slip surface in limit equilibrium analysis

“…The critical deterministic slip surface for a slope is located by systematically generating a series of trial surfaces and analysing each slip surface with a set of soil parameters (Cheng, 2003;Cheng and Li, 2007;Cheng et al, 2007bCheng et al, , 2008a. In most of these algorithms, the location of the critical deterministic surface associated with the minimum safety factor, F s min , is formulated as an optimization problem, as follows:…”

“…The SHM (Simple Harmony Method) uses a stochastic random search that is based on the harmony memory considering HR and PR, and it is a population-based search method. This method is chosen by the authors, as Cheng et al (2007bCheng et al ( , 2008a have demonstrated that this method is highly efficient for continuous global optimization problems and have implemented this procedure into commercial slope stability programs. (Ang and Tang, 1984;Chen, 2003) to transform the random numbers δ 1 and δ 2 to normally distributed random numbers λ i and λ i+1 .…”

Multiobjective Optimization of Water Distribution Networks Using Fuzzy Theory and Harmony Search

“…HS applications include structural design [30], geotechnical analysis [31], road property analysis [32], groundwater management [33], and project scheduling [34].…”

A Survey of Harmony Search Algorithm

“…In recent years, several investigations have been developed around HS, and been applied to various optimization problems in computer science, operations research,science and engineering, among which are included: daily applications, computer science, electrical engineering [40][41][42][43][44][45][46], civil engineering [47][48][49][50][51][52][53][54][55], mechanical engineering [56][57][58][59], biomedical [60][61][62] ,economics [63], transport [28,64] , ecology [51,65,66], among others [14,32].we mention the important applications related to operations research(OR) and Computer science (CS).…”