Research on soil disposal scheme and transportation system optimization during the transition period in Heishan Open-pit Coal Mine
LIU Mingming
PENG Hongge
ZHAO Ting
Abstract：To address the critical issues during the transition period of Heishan Open-pit Coal Mine,including insufficient external dump capacity,urgent internal dumping demand,unbalanced release rates,and extended transportation distances,we conduct a comprehensive comparison between potential dumping spaces and transportation system distances,present solutions including the prioritized eastern-slope mining combined with reverse internal dumping,transportation system optimization by retaining Line No.2 and backfilling Line No.3,and a prioritized boundary expansion scheme for the southern external dump.The results demonstrate that the total capacity of the reverse internal dump reaches 25 876.97×104 m3,retaining Line No.2 and backfilling Line No.3 can release an additional 7 418×104 m3 of external dumping capacity.The prioritized boundary expansion scheme for the southern external dump effectively minimizes land occupation for external disposal.
Keywords：reverse internal dumpingdeveloping transportation systemweighted transportation distancedumping optimizationmining and stripping distance
Publication Date：2025-12-15
Online Publishing Date：2026-01-06(First online date of this platform, not the publication date of the document)
Pages：6( 71-76 )