统计分析法在岩体力学参数取值分析中的应用

Application of statistical analysis method in selection of rock mechanics parameters

介绍了统计分析方法中的异常值剔除原则、试验参数标准值的计算、抗剪试验数据的一元线性回归分析方法。以地质力学参数数据库中的实际工程力学参数为数据源演示了统计分析方法在力学参数分析中的应用。通过对灰岩的力学参数的统计分析,结果表明:大多力学参数的分布特点符合正态分布。运用力学参数数据库进行参数统计分析的结果为地质人员进行力学参数取值提供了重要的参考依据。

An introduction was made on the excluding outliers principle, testing parameter standard value calcula- tion, shear test data linear regression of statistical analysis method. The authors demonstrate the application of sta- tistical analysis method in mechanics parameter selection with real engineering mechanical parameters from the geo- logical mechanics parameter database as data source. The results of statistical analysis of limestone mechanics pa- rameters demonstrate that the distribution characteristics of mechanical parameters mostly conform to normal curve. The result of statistical analysis based on the mechanical parameters database can be important reference basis for the selection of mechanics parameters.