【摘要】 引入了一种新型智能优化算法差异进化优化算法,建立采矿巷道围岩参数的识别方法.基于正交设计和均匀设计方案进行巷道开挖的数值试验,建立围岩力学参数与监测位移的映射关系回归模型.以计算位移和监测位移的误差为适应值,采用差异进化优化算法进行参数识别.在探讨差异进化算法原理和参数识别步骤基础上,将该方法应用于金山店铁矿进路巷道分析.分析结果表明该算法具有优良的全局快速收敛性,是具有较强适应性的新型巷道参数识别方法,具有良好应用前景.更多还原

【Abstract】 As a new intelligent optimizing algorithm,the difference evolution algorithm was introduced into the recognition of mine workings’ wall rock parameters. Based on the orthogonal design and homogeneous design,a numerical test of drift driving was carried out to develop a regression model to reflect the relation between mechanical parameters and monitored tiny displacement of wall rock,with the difference between computed and monitored displacements as fit value,thus introducing the difference evolution algorithm to recognize relevant parameters. Discussing the principle of difference evolution algorithm and parameter recognizing steps,the algorithm was used to analyze the entry roadway of Jinshandian Iron Mine and the results indicated that the algorithm has rapidly global convergence which provides a new way to recognize the parameters of mine workings with high adaptability and good prospect in applications.更多还原