Abstract: In this study, a simplified mechanical model is proposed based on the failure characteristics of a gypsum pillar–roof system obtained through in situ investigation. Then, a cusp catastrophe model for the gypsum pillar–roof ...

Abstract: The deformation monitoring data including the horizontal and vertical displacements from Chengchao Iron-ore Mine were gathered over 10 years. Combined with the field macrofailure characteristics at the ground surface, the ...