State Key Laboratory for Disaster Reduction in Civil Engineering Department of Geotechnical Engineering Tongji University Shanghai 20092 China;
State Key Laboratory for Disaster Reduction in Civil Engineering Department of Geotechnical Engineering Tongji University Shanghai 20092 China;
State Key Laboratory for Disaster Reduction in Civil Engineering Department of Geotechnical Engineering Tongji University Shanghai 20092 China;
fracture; crack; propagation; deformable block; continuous/discontinuous deformation analysis(CDDA);