Numerical Modelling of the CRLD Cable and Its Application in Slope Movement Monitoring
Wen NIE#+
Hebei University of Technology, China

Rock excavation is an essential phase in civil engineering projects. To reduce the vibrations and compromise the safety, non-explosive rock breaking techniques have been developed as practical solutions for rock excavations close to residential and populated areas. In this paper, the application of expansive chemical agents in rock excavation for deep foundation construction was analyzed using discontinuous deformation analysis. By introducing the pressure histories as results of expansive chemical agents mixing with water, the progressive rock breakages in moderately weathered granite were simulated. The breaking efficiency was evaluated based on the expansion ratios of the holes and the propagation of cracks in the rock block. Multi-holes patterns were considered to increase the efficiency of the application of expansive chemical agents on site.