This work was supported by the National Natural Science Foundation of China (U1602232, 52004052) and the Fundamental Research Funds for the Central Universities (170108029, 2101027).
DONG Fu-rui, WANG Shu-hong, HOU Qin-kuan. Multi-parameter dominant grouping method of rock mass discontinuity
based on principal component analysis[J].Rock and Soil Mechanics, 2022, 43(9): 2457-2470.