title: Discrete element modeling of a mining-induced rock slide.
abstract: Slopes are subjected to stress redistributions during underground mining activities, and this may eventually cause deformation or landslide. This paper takes Madaling landslide in Guizhou Province, China as a case study to investigate the failure mechanism and its run-out behaviours by using discrete element method. Previous qualitative analysis indicated that the slope experienced four stages of failure mechanisms: (1) development of tension cracks, (2) development of stepped-like creep cracks, (3) development of potential rupture surfaces, and (4) occurrence of the landslide. PFC2D program was employed to model the pre-failure deformation characteristics in order to verify the failure mechanisms quantitatively. Subsequently, the run-out behaviours of the landslide were analyzed by PFC3D program. The results indicated that the movement could be summarized into four stages: acceleration stage, constant movement stage, rapid movement stage, and deceleration and deposition stage.
authors.affiliation: State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, China.
authors.forename: JianJun
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Chengdu Geological Environmental Monitoring Station, Chengdu, China.
authors.forename: JianGuo
authors.initials: J
authors.lastname: Xiao
authors.affiliation: State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, China ; Department of Civil Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kuala Lumpur, Malaysia.
authors.forename: Min Lee
authors.initials: ML
authors.lastname: Lee
authors.affiliation: State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, China.
authors.forename: YunTao
authors.initials: Y
authors.lastname: Ma
keywords: Crack; Discrete element method; Failure mechanism; Mining induced rockslide; Run-out behaviours