基于正交—数值试验的复杂围岩参数敏感性分析

Analysis on the complex rock parameters sensitivity based on orthogonal-numerical experiment

将数理统计的正交设计和大规模三维数值模拟相结合,提出了复杂围岩参数的正交—数值试验的参数敏感性分析方法,并用该方法对某隧道复杂围岩力学参数进行了分析。结果证明该方法是复杂围岩参数选取的高效方法,给出了所研究围岩参数对于变形的敏感性排序,对于该工程的变形反分析和施工控制具有较好的指导意义。

Combining with orthogonal design of mathematical statistics with large scale three-dimensional numerical simulation, it puts forward parameter sensitivity analysis method of complex rock orthogonal-numerical experiment, and carries on analysis on the method in complex tunnel rock mathematical parameter. Results show that： this method is the efficient method for complex rock parameter selection, which shows the sen-sitivity order of rock parameter studied for the deformation. Therefore, it has a positive guiding meaning for the engineering deformation back-analysis and construction control.