欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
敏感性分析是岩土工程中解决多参数辨识问题的一个主要方法，而位移和孔隙水压力对参数的灵敏度计算是其关键。针对传统的单因素敏感性分析法只能进行单因素变化的特点，提出了用非参数统计方法中的秩相关系数来评价岩体水-力耦合系统参数灵敏度的方法，实现了多因素敏感性分析。以比利时泥岩核废料库工程为例，对影响围岩稳定性的内在物理力学参数的灵敏度进行了数值分析，获得了影响围岩稳定的主次因素，为泥岩核废料库分析中的参数反演分析的简化处理奠定了基础。
英文摘要：
Parameter sensitivity analysis is an important method for the geotechnieal back analysis problems, and the study for displacements and pore pressures against seepage - stress coupling parameters takes a crucial role in the study. Current literatures on the analysis of parameter sensitivity are only about single factor change method unable to take into account multi - factors change. Aiming at the multi - parameters sensitivity analysis of seepage - stress cou- pling model, a new method for evaluating the sensitivity of system parameters is put forward using Spearman coeffi- cient in non - parameter statistics in this paper. Considering the actual case of radioactive waste disposal in the deep Boom clay formation in Belgium, the parameters effect on displacements and pore pressures around the tunnel are analyzed in detail. The presented method can provide the references for the influence of tunnel drainage on geological environment and back analysis of surrounding rock.
同期刊论文项目
同项目期刊论文
期刊信息
位置：