岩质边坡最危险滑裂面的GA-Sarma算法研究

STUDY OF GA-SARMA ALGORITHM OF CRITICAL SLIP SURFACE OF ROCK SLOPE

基于现有国内外边坡极限平衡法稳定性分析软件在岩质边坡滑裂面搜索中的局限性,将遗传算法(GA)和Sarma法相结合,提出岩质边坡最危险滑裂面的GA-Sarma算法。GA-Sarma算法解决以折线形为滑面形态、以层面等结构面为边界任意条分并满足条块间边界力平衡原理、滑裂路径可追踪顺坡向不连续结构面的岩质边坡最危险滑裂面的全局优化问题。

In view of limitations in searching the critical slip surface of rock slope of the existing domestic and international software for limit equilibrium slope stability analyses, a new method named GA-Sarma algorithm for rock slope stability analyses is proposed. Just as its name implies, GA-Sarma algorithm is implemented based on Genetic algorithm and Sarma method. GA-Sarma algorithm assumes the morphology of slip surface to be a broken line with traceability to extend along the discontinuous surface structures, and the slice boundaries are consistent with rock mass discontinuities such as rock layers, faults, cracks, and so on. GA-Sarma algorithm is a revolutionary method that is suitable for global optimization of the critical slip surface for rock slopes.