Article
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Preserved in Portico This version is not peer-reviewed
Design of Unmanned Road Width in Open-Pit Mines Based on Offset Reaction Time
Version 1
: Received: 13 March 2024 / Approved: 16 March 2024 / Online: 18 March 2024 (08:09:42 CET)
A peer-reviewed article of this Preprint also exists.
Han, L.; Liu, P. Design of Unmanned Road Widths in Open-Pit Mines Based on Offset Reaction Times. Appl. Sci. 2024, 14, 2995. Han, L.; Liu, P. Design of Unmanned Road Widths in Open-Pit Mines Based on Offset Reaction Times. Appl. Sci. 2024, 14, 2995.
Abstract
In an effort to enhance the efficiency and safety of open-pit mines, this study explores the optimization of end slope road parameters and slope structures, specifically focusing on unmanned driving lanes.A significant aspect of the study is the development of a truck trajectory offset model, which considers the different reaction times between automated sensors and human drivers in adapting to environmental changes. To test these concepts, the study uses numerical simulations to confirm the stability of the proposed end slope designs. Using Victory West Mine No. 1 as a case study, the research determines the optimized width for unmanned driving lanes and the maximum angle for safe steepening of end slopes. The findings indicate that the optimized unmanned lane width for NTE240 mining dump trucks is 1743 mm, allowing for a 2-degree increase in the slope angle at the south end slope. This optimization leads to a steep mining stripping volume of 3.2735 million m³ and a coal output of 2.49628 million tons, maintaining a stripping ratio of 1.31m³/t. These results demonstrate that the unmanned driving road width optimization not only ensures slope safety but also significantly boosts the economic benefits of steep mining in open-pit mines.
Keywords
Unmanned driving; Truck dynamics; Offset reaction time; Road width; Economic benefits
Subject
Engineering, Mining and Mineral Processing
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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