摘要
探讨了６种最优化方法（鲍威尔法、单纯形加速法、阻尼最小二乘法、变尺度法、模式搜索法和变量轮换法）在巷道弹性位移反分析中的应用情况。从参数初始点的选择、收敛速度、收敛精度和可靠性方面评价了这６种无约束最优化方法的优劣。
The application of six kinds optimization methods in back analysis of the initial stress and elasticconstants of the surrounding rocks of tunnel is discussed. These optimization methods are: Powell, Simpleacceleration, damped least square, Davidon-Fletcher-Powell, Hooke-Jeeve direct search, and alternatingvariable method. The merits and demerits of them are evaluated in respects of initial values of design variables,convergence rate, convergence precision and reliability.
出处
《岩土力学》
EI
CSCD
1996年第2期29-34,共6页
Rock and Soil Mechanics
基金
山东省自然科学基金
关键词
地下巷道
位移
反分析
优化法
弹性位移
displacements back analysis
optimization method
convergence rate
convergence precision
reliability
