SURFACE MINING

Original paper

UDC 622.271 A.Yu. Cheban, 2025

ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2025, № 7, pp. 59-61

DOI: http://dx.doi.org/10.18796/0041-5790-2025-7-59-61

Title

IMPROVEMENT OF TECHNOLOGY FOR DEVELOPING COMPLEX-STRUCTURED COAL SEAMS USING QUARRY COMBINES

Authors

A.Yu. Cheban

Institute of Mining, Far Eastern Branch of the Russian Academy of Sciences, Khabarovsk, 680000, Russian Federation e-mail: chebanay@mail.ru

Authors Information

Cheban A.Yu. – PhD (Engineering), Associate Professor, Leading researcher, Institute of Mining, Far Eastern Branch of the Russian Academy of Sciences, Khabarovsk, 680000, Russian Federation, e-mail: chebanay@mail.ru

Abstract

In the development of complex-structured coal deposits, blastfree technologies are increasingly being used with open-pit mining machines of various designs, sizes and productivity. A pressing task is to reduce the cost of mining operations by selecting mining equipment that best suits specific mining and geological conditions. The article proposes a technological scheme for the selective development of a complex-structured seam with the extraction of relatively thick coal seams by a high-performance open-pit combine, while the extraction of thin rock layers is proposed to be carried out by an improved small-size open-pit combine, which ensures non-stop milling of the rock layer when replacing dump trucks under loading. The use of the proposed technology will improve the quality of selective mining and reduce production costs, which will increase the profitability of mining production.

Keywords

Coal, rock layers, layer-by-layer milling, open-pit combine, storage bin, feeder, coal carrier, dump truck.

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For citation

Cheban A.Yu. Improvement of technology for developing complex-structured coal seams using quarry combines. Ugol’. 2025;(7):59-61. (In Russ.). DOI: 10.18796/0041-5790-2025-7-59-61.

Paper Info

• Received April 10, 2025
• Reviewed June 17, 2025
• Accepted June 27, 2025