Authors: E.A. Tyuleneva, Yu.V. Lesin, Ya.O. Litvin

Title of the article: Research of the coal-bearing zones’ mining technology at Kuzbass open pits using simple and complex faces

Year: 2019, Issue: 1, Pages: 35-49

Branch of knowledge: MINING AND GEOTECHNICAL ENGINEERING

Index UDK: 622.271.3

DOI: 10.26730/2618-7434-2019-1-35-49

Abstract: When mining coal-bearing zones at Kuzbass mines, a very important issue is the organization of excavation and loading operations to ensure, on the one hand, the rhythm of equipment operation, and on the other hand, to ensure its maximum productivity and reduce unplanned downtime. It is known that the excavation of the rock-and-coal panel can be performed by simple or complex face, each of which has its own advantages and disad-vantages. This article presents the calculation of the parameters of excava-tion and loading operations and the calculation of the time of mining rock and coal elements of the panel for various mining and geological conditions: the changing thickness and the dip angle of coal seam. It has been established that the predominant type of face should be simple face as the most advanced technologically. Also, the calculation of the annual fund of time, which is lost during unplanned downtime of equipment, was esti-mated, the damage from the under-utilization of the full performance of the excavation and loading complex was assessed. When operating the hydraulic backhoes with lower digging, the width of the platform for placing an excavator (in fact, the horizontal thickness of the coal seam) must ensure the safe operation of the equipment. To this end, a verification calculation of the possibility of its application in various ge-ological conditions was made for the specific model of the excavator. Введение

Key words: coal-bearing zone open pit mining hydraulic exca-vators excavation and loading operations organization of min-ing process

CITE DOWNLOAD