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Underground excavations such as tunnels, ground slopes, unstable rock walls, and cliffs are some examples where rock bolts and cable bolts can be used to safeguard human life and equipment. Rock bolts and cable bolts (so-called tendons) are tension members that pull the loose parts of the ground together and anchor them to the nearest intact and stable ground. Reinforcement of sagging bedding layers and strata, supporting the immediate roof of a tunnel in a discontinuous rock, and stabilizing the rock slopes that have the potential to topple can be some of the routine applications of ground an...

This study pioneers the application of machine learning (ML) for predicting the bearing strength of double shear bolted connections in structural steel. For the first time, a comprehensive database comprising 443 experimental datasets was compiled, with input features including the normalized end distance, edge distance, bolt pitch along and transverse to the loading directions of the connection, ultimate-to-yield strength ratio of the steel plate, number of bolt rows, connection configuration and normalized bearing capacity. Eleven ML techniques were explored for this application. Feature imp...