Teaching and Training of Mine Roof Fall Accident Based on VR Technology
Received date: 2020-09-24
Revised date: 2021-03-30
Online published: 2021-10-08
In order to improve the efficiency of VR training for non-coal mine roof fall，based on Unity3D，3DMax and Visual Studio 2019 software，a mine roof fall accident teaching and training platform has been developed including three modules：Pre-training，hidden rock recognition training and disaster site escape training.The platform uses 3DMax modeling software and Unity3D engine to complete the mining VR environment modeling，through the HTC VIVE equipment to complete the interaction between trainees and the mine virtual environment，using virtual coaches for demonstration teaching.Firstly，train the trainees through the mine knowledge question bank to improve the trainees’ cognition level of the mine，and then use the virtual coach to guide the trainee to identify and clear the hidden rock blocks and escape from the disaster site.The comparison of the training effect of the virtual coach and the traditional UI text was carry out，and the trainees will be tested on the disaster scene and the effect evaluation of the VR virtual coach training platform will be completed.The results showed that the average time of escape for trainees trained by virtual coach was 192.9 s，and the average time for trainees trained by UI text was 238.1 s.The latter was 45.2 s longer than the former.The test were repeated one week later. The average time of the trainees who trained by virtual coach was 224.7 s，and the average time of the trainees who used UI text training was 290.9 s.The latter was 66.2 s longer than the former.At the same time，compare to the first test，the escape time of trainees using virtual coach training increased by 16.5%，while the escape time of trainees using UI text training increased by 22.2%.The test results show that the VR technology-based non-coal mine roof fall teaching and training platform can promote the trainees to maintain a longer-term memory of the training content，and the overall training efficiency is higher than UI text teaching，which can effectively improve the trainees’ safety awareness and emergency response capabilities.Interviews with trainees show that the use of virtual coach training can better guide trainees’ attention，create an atmosphere of real-person teaching，and have good promotion and application value.
Key words： metal mine; roof fall; rock roadway; VR modeling; route planning; safety training
Zhenyu NIE , Keping ZHOU , Zhipeng LIANG . Teaching and Training of Mine Roof Fall Accident Based on VR Technology[J]. Gold Science and Technology, 2021 , 29(4) : 620 -628 . DOI: 10.11872/j.issn.1005-2518.2021.04.170
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