相关系数法在岩体结构均质区划分中的运用

Application of correlation coefficient method in division of homogeneous area of rock mass structure

岩体结构在进行均质区划分时如何对其参数进行选取非常关键,岩体内不同长度的裂隙迹长不仅可以反映裂隙的空间分布特征,而且还能反映其均质性和各向异性.本文在对辽宁某抽水蓄能电站地下厂房主变洞岩体裂隙结构面调查和资料分析后,利用相关系数法并选择裂隙迹长为参数对其进行了均质区划分,得出两个不同的均质区,且将其与实际观测值对比,结果证明划分区域与现场实际较为吻合,该方法直观、便捷、易于操作,具有很强的实用价值.

The division of homogeneous zone is essential in the study of rock mass structure,so how to select its parameters is very critical in the division of homogeneous zone. The trace length of cracks with different lengths in the rock mass can not only reflect the spatial distribution characteristics of cracks,but also reflect their homogeneity and anisotropy. Therefore,after the investigation and data analysis of the fracture structural plane of the main transformer cave in the underground powerhouse of a pumped storage power station in Liaoning province,By using the correlation coefficient method and selecting the crack trace length as a parameter,the homogeneous areas were divided,and two different homogeneous areas were obtained. Finally, the comparison between them and the actual observation values proves that the divided areas are in good agreement with the actual situation in the field. This method is intuitive,convenient,easy to operate and has strong practical value.