AUTHOR=Sun Mingshe , Chen Song , He Huafei , Wang Wenzheng , Song Kezhi , Lin Xuebing TITLE=Classification and prediction of rock mass drillability for a tunnel boring machine based on operational data mining JOURNAL=Frontiers in Earth Science VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2024.1518844 DOI=10.3389/feart.2024.1518844 ISSN=2296-6463