Development of Shotcrete Robot

Abstract

In recent years, concrete spraying or shotcrete work carried out at NATM method tunnel construction sites has become a social problem because the dust put into the air during work. Further, current shotcrete methods result in a large amount of rebounded concrete and dust, which raise both cost and safety concerns. Although some companies have developed shotcrete robots, all such robots must be controlled manually -and the above two problems remain . To solve these problems, we have developed a fully automatic shotcrete robot, the performance of which has been verified through actual construction work.