DETERMINING THE LIMITING CONTOUR OF THE QUARRY BASED ON MINIMIZING THE VOLUME OF THE NEAR-CONTOUR ORE ZONE

Встановлення граничного контуру кар’єру на основі мінімізації об’єму приконтурної рудної зони
Moldabayev S. Adamchuk A. Assylkhanova G. Bakytzhanov N. Khairullayev A. Yeluzakh M.
2025 Natsionalnyi Hirnychyi Universytet

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu
2025 Issue 2 51 - 59 pp.

Purpose. To develop a new method for determining the volumetric current and final quarry contours based on minimizing the volume of the near-contour ore zone at different stages of mining development. Methodology. An economic-mathematical model was constructed to determine the optimal horizon for the introduction of combined transport, considering the quarry parameters. The proposed algorithm allows for the identification of the horizon for the installation of a combined transport transshipment point. Findings. The experience of designing the ultimate contour of deep quarries in open-pit mining practice was analyzed. It was established that the methodology for determining optimal quarry contour parameters includes two approaches: comparison of stripping ratios (economic and technological ones) and calculating deposit value using the Lerch-Grossmann algorithm and its modifications. The shortcomings of existing design approaches were examined, and a new method for determining volumetric current and final quarry contours was proposed. Originality. The dependence of the near-contour zone volume on the parameters of quarry contour placement in the plan was established, contributing to the increased efficiency of deposit extraction by increasing the share of recovered valuable minerals. The proposed concept enables the precise determination of the final quarry contours and their spatial location relative to the ore body while allowing for the prompt adjustment of parameters in response to changing market conditions. Practical value. The developed method is based on the concept of staged contour formation, where the location of the first-stage quarry is determined by minimizing the volume of the near-contour zone. The obtained results make it possible to adjust quarry contours during operation, considering changes in market conditions.

deep quarries , first-stage quarry , near-contour zone , ultimate contours

Text of the article Перейти на текст статьи

Mining and Metallurgical Institute named after O.A.Baikonurov, Almaty, Kazakhstan
Dnipro University of Technology, Dnipro, Ukraine
Satbayev University, Almaty, Kazakhstan

Mining and Metallurgical Institute named after O.A.Baikonurov
Dnipro University of Technology
Satbayev University

10 лет помогаем публиковать статьи Международный издатель

Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026