Real-time Identification Method of TBM Surrounding Rock Excavatability Grade Based on Principal Component Analysis and BP Neural Network

DUAN Zhiwei, DU Lijie, LYU Haiming, WANG Jiahai, LIU Haidong, FU Yongming

Tunnel Construction . 2020, (3): 379 -388 . DOI: 10.3973/j.issn.2096-4498.2020.03.010