Built-in multi-sensor measurement-while-drilling (MWD) modules on roof bolters can record torque, thrust, rotational speed, and displacement during drilling. This study examines whether identical rock types produce consistent MWD responses when tested through different boreholes in separate composite specimens. Three l...
Jian-Ju Ren, Yu-Xiang Li, Xin Yan et al.· Italian National Conference...· 0 citations
A large number of in-service concrete components in infrastructure are prone to internal secondary damage, which seriously threatens the long-term safety of structures. To effectively identify internal secondary damage in concrete structures and reveal the influence of cracks on structural dynamic characteristics, this...
Internal discontinuities in concrete walls are hidden conditions that can compromise local structural capacity and durability. Rapid and objective on-site anomaly screening is therefore important for structural integrity evaluation. This paper presents a signal-processing procedure for preliminary concrete anomaly scre...
Bo-Chen Sheng, Shi-Bin Teng, Qi-Long Xu et al.· Italian National Conference...· 0 citations
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