Slope Failure Behavior Analysis in Open Pit Coal Mining
Slope failure is one of the causes of safety and production losses in open pit coal mining in Indonesia often related to complexity in the rock mass and weak rock strength materials. In depth knowledge of slope behaviour and failure mechanisms is important in order to determine an appropriate
response in terms of geotechnical risk management strategy. This paper summarizes the results of research undertaken on 62 wall failures in 3 different open pit coal mines in Indonesia using Slope Stability Radar (SSR). The results are presented statistically, to illustrate the different magnitudes
of velocity and inverse velocity at the time of collapse. The objective of this research is to define an appropriate alarm threshold value to provide an adequate notification period prior to failures that have occurred. Variability between the velocity, inverse velocity and slope deformation
plots associated with different and similar failure mechanisms are also discussed.
Keywords: Coal Mining; Failure Behavior; Radar Monitoring; Slope Failure; Velocity Thresholds
Document Type: Research Article
Affiliations: Mining Engineering Department, UPN Veteran Yogyakarta, Jalan SWK No. 4 Candongcatur Yogyakarta, 55283, Indonesia; GroundProbe Indonesia, Indonesia
Publication date: 01 December 2018
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