The field of rock cutting and excavation technologies has evolved significantly over recent decades, underpinned by innovations in mechanical design, computational modelling, and experimental ...

The conical pick is the most crucial tool of roadheader for breaking rock, establishing the conical pick cutting rock and conical pick fatigue life numerical simulation models to investigate the ...

The first time archaeologist John Shea looked at what might be the oldest stone tools ever found, he almost blew them off. “Are you kidding me?” he remembers asking Sonia Harmand, his colleague at ...