The article substantiates the quantity and type of tire size for a dump truck with a carrying capacity from 90 to 130 tons. Types of tire sizes for dump trucks are given, as well as an analysis of applicable tires for dump trucks. An example of tire configuration for a dump truck is described, as well as the differences between projects and dump trucks with the traditional arrangement of large tires. The working productivity of large tires was cal- culated using the TKH “tons per kilometer per hour” technique. The general tasks that need to be addressed when designing a dump truck are highlighted. The conclusion is made on the relevance of the development of scientifically based approaches when designing dump trucks. The above data indicate that when surface mining, it is possible to solve the economic problem of reduc- ing the operating costs of transporting minerals by applying the proposed arrangement and number of large tires when designing new dump trucks, including robotic and unmanned ones.
Аннотация: в работе рассмотрены актуальные вопросы развития и применения беспилотных карьерных самосвалов при разработке месторождений полезных ископаемых. Приведены основные преимущества и недостатки применения автономных самосвалов челночного типа по сравнению с традиционными самосвалами, объясняющие причины их востребованности и заинтересованности в них горнодобывающих предприятий. Кроме того, расчетным путем обоснована целесообразность использования беспилотных автомобилей с точки зрения их производительности.
The issues of digitalization of the mining industry, including open-pit mining, are considered. The issues of the use of semantic systems as an element of information flows, allowing to determine and select the right decisions in the process of mining management, in particular, in the mining of minerals by open mining, are covered. The article formulates requirements for semantic networks for the description of material in computer-aided learning tools and analyzes the most well-known models of semantic networks.
Rock mass transportation costs account for more than 50% of the total costs including the tire costs of 25 to 30%. The average tire life at mining companies is less than what is recommended by the manufacturing plants. Mining truck tire service life is largely dependent on the normal wheel load. The key point in the normal load configuration is the wheel location on the dump truck and the profile of the quarry road. Determination of the most loaded tires in various operating conditions will lead to an incre ase in the tire service life and prevent early failure. The ton km per hour indicator (tire operating performance) proposed by tire manufacturers does not consider the various mining conditions and profiles options for the of open pit roads on different routes. The average load per trip is determined as the movement of a loaded and empty dump truck along a straight road section.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.