Use of virtual reality in underground roof fall hazard assessment and risk mitigation
|نوع نگارش مقاله||
scopus – master journals – JCR
۴٫۲۷۶ در سال ۲۰۲۰
۲۶ در سال ۲۰۲۱
۰٫۹۰۱ در سال ۲۰۲۰
|شاخص Quartile (چارک)||
Q1 در سال ۲۰۲۰
خرید محصول توسط کلیه کارت های شتاب امکان پذیر است و بلافاصله پس از خرید، لینک دانلود محصول در اختیار شما قرار خواهد گرفت و هر گونه فروش در سایت های دیگر قابل پیگیری خواهد بود.
فهرست مطالب مقاله:
Virtual reality (VR) simulations are some of the alternative practice environments for safety education. Trainees gain experience under the most realistic conditions without being exposed to any real hazard. Virtual reality also serves as a tool to expedite the decision-making process where quick decisions and actions are necessities for a safe operation. One example of such a situation in underground mines is the failure risks in a tunnel face after blasting. Ground support systems must be installed based on the stand-up time to ensure the safe access of personnel and equipment to the working area. Generally, a competent person inspects the area to identify risks and determines the required support systems. However, training of a competent person requires large amount of time and effort. This study presents virtual reality simulations developed for improving the assessment of the roof fall hazards and taking necessary measures for mitigating the risk related to roof fall. The virtual reality simulation involves decision-making tasks for a particular scenario in which participants can experience creating a safe work- ing environment in a timely manner. First, they are asked to identify the potential hazard in a tunnel after blasting, namely, rock fall, wedge failure or groundwater inflow. If the hazard identification is successful, participants are requested to install rock bolts as a safety measure by selecting the bolt pattern (e.g. bolt length and spacing). Finally, participants evaluate the roof fall hazard by viewing displacements around the opening, before and after the support measures. This study illustrates the benefits of VR in safety training as well as enhancing the decision-making process to enhance safety.
|بخشی از متن مقاله:|
Identification of hazards around a tunnel face after blasting in mining or tunneling operations is a prominent task to mitigate potential hazards like injuries, loss of life and equipment, and downtimes. Hazard identification requires a competent person to investigate the area and determine whether or not further ground support measures are necessary, in addition to the ground support application by design. The hazard identification needs to be com- pleted in a limited time as the stand-up time of the underground opening restricts the decision-making process. Therefore, training employees in roof rock fall hazard identification and risk mitiga- tion is beneficial in order to expedite the decision-making capabil- ities of the responsible personnel and prevent incidents. Technological improvements in virtual reality (VR) technology pro- vide a novel solution for training in hazardous working conditions without exposing trainee to any real danger.
VR simulations have been in use for several years for training purposes in a variety of industries such as aviation, railroad, mili- tary, and healthcare. Recently, several others joined them to reach higher safety standards. For instance, fire safety training is among those fields that started to benefit from the potential of VR. Cha et al. developed a real-time dynamic data conversion methodology for smoke and flames in VR . Xu et al. established a fire training simulator in VR that requires participants to assess the hazard based on smoke levels and identify the safest evacuation path . The growing potential for VR applications in safety training and hazard assessment has also been investigated by the construc- tion industry. VR-based training improves construction safety by maintaining participant attention and preserving the effects of training over longer periods of time than conventional training methods . Significant number of accidents happening each year in this industry indicates a need for innovative approaches in safety training . Li et al. provided an overview of VR-based construction safety research, trends in state-of-the-art hazard assessment and safety training tools, and future directions . VR-based safety training has been implemented in other fields such as oil and gas, aviation, vehicle driving, chemical processing
and maintenance works [6–۹]. These applications showed that VR- based training offers a promising opportunity to develop problem- solving and decision-making skills. Potential of VR has started to be recognized by the mining industry in recent years and the safety- related training in VR draws the attention of several researchers. Kizil and Joy described the benefits in use of VR in minerals indus- try and reported that the VR provides a significant opportunity to improve productivity and safety awareness . However, as sta- ted by Tichon and Burgess-Limerick, VR applications in mining have not become widespread, since these applications lack system- atic evaluation, have poor quality design and small sample sizes .
The early applications of virtual reality-based training in mining industry used simulations displayed on ۲D computer screens. The context of these simulations was the education of trainees about the safety-related issues and to train them to use specific equip- ment. These simulations include a hazard awareness training sim- ulator developed to prove the capabilities of VR technology in mining industry, a methodology to model the ergonomic limita- tions of mining machinery, an instruction and task-based VR sim- ulation for personnel working around belt conveyors, and a fire- safety training VR simulation to educate trainees for evacuation routes in a mine [12–۱۵]. However, screen displayed simulations provide very limited immersion, which is essential to any VR appli- cation designed to simulate real-world conditions. Introduction of head-mounted displays (HMD) and CAVE systems improved the immersion of virtual environments and raised more attention towards VR as a research tool in many fields.
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