基于支持向量机和模拟退火算法的位移反分析  

DISPLACEMENT BACK ANALYSIS BASED ON SUPPORT VECTOR MACHINE AND SIMULATED ANNEALING

作　　者：许传华[1] 任青文[1] 周庆华 

机构地区：[1]河海大学土木工程学院 [2]广东省惠州勘察工程公司,广东惠州516300

出　　处：《岩石力学与工程学报》2005年第22期4134-4138,共5页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金资助项目(50379005)

摘　　要：提出了一种基于支持向量机和模拟退火算法的位移反分析方法,一方面用支持向量机代替有限元计算提高计算分析速度,另一方面用模拟退火算法代替传统的优化算法,避免优化过程中目标函数陷入局部极小值而无法继续寻优的状态,从而提高反演的效率精度。应用该方法对边坡的岩体力学参数进行反演,反演结果验证了模型的可行性。A displacement back analysis is proposed by combining the support vector machine and simulated annealing. Firstly the support vector machine is used to substitute the time-consuming finite element analysis; and secondly simulated annealing is used for the optimization of objective function for fear that the search often falls in one of the minimums and cannot go any further when the conventional mathematical optimization methods are employed. The feasibility of this approach is verified by back analysis of the mechanical parameters of a slope.

关 键 词：岩石力学 支持向量机 模拟退火算法 位移反分析 

分 类 号：TU452[建筑科学—岩土工程]