ICARD-IMWA 2018 is organized to provide an international forum where mining professionals, operators, researchers and suppliers can meet to exchange, interact, analyze and discuss experiences and recent innovations in the area of sound and responsible mine water and effluent management. The majority of the papers included in the proceedings will deal with mitigation, remediation, and responsible mine water management. The conference aims to be a platform for exchanging ideas and experience from mining operations to remediation of abandoned mine sites in various climatic and cultural conditions.
Stope collapse is a common form of accident resulting in property loss and bodily harm in mines. There are several methods to carry out risk assessment for stope collapse incident in an underground mine. This paper presents an alternate method to determine stope collapse probability using Bayesian belief networks. The alternate methodology is designed to replace a subjective risk assessment process in a metal mine in Finland. First, the stope collapse failure mechanism specific to the underground mine was established by carrying out interviews with stake holders in the underground mine. These failure modes have been mapped using Bayesian network with the use of expert opinion. The expert opinions were obtained from the interviews and their correlation and interdependencies have been defined. Use of continuous data obtained from site instrumentation in the Bayesian network has been discussed to validate the expert opinion model and to create a near real-time risk monitoring system. Updating of failure probabilities using new evidence has been discussed using a what-if scenario analysis and use of backward inference to carry out incident investigation in the event of a failure has been described. The paper further elaborates on how Bayesian modelling for risk assessment can be incorporated in mining to justify mitigation measures and use this as a decision-making tool. When combined with existing data collection systems in the mine, this can form the backbone for a real-time risk management system.
While not specific to tailings, this webinar includes valuable knowledge for tailings engineers. Geosynthetics have made a major impact regarding erosion control and revegetation of soil slopes. Whether temporary or permanent time frames, these easy-to-use rolled products come in many types and varieties. This webinar properly characterizes the materials and then provides designs for their use on both soil slopes and in channel/ditches. This webinar also presents laboratory bench-scale and full-scale field test methods. It also explains those methods. This webinar discusses a new generic turf reinforcement mat (TRM) specification, along with the required test methods which are necessary for use by designers and specifiers. The webinar concludes with a summary and recommendation section.