贵州纳雍县赣兴煤业可采煤层资源储量精细估算研究

A Study on the Refined Estimation of Minable Coal Seam Reserves in Ganxing Coal Mine, Nayong County, Guizhou Province

摘要: 针对贵州纳雍县赣兴煤业地质条件复杂、储量核算精度受限现状，开展可采煤层资源储量精细化估算研究。通过对矿区上二叠统龙潭组含煤地层进行精细划分，确立以C₃₀、C₃₁及C₃₂为主采煤层的层序架构。应用地质块段法建立三维几何估算模型，引入产状修正系数与容重加权算法，实现从水平投影面积向真实赋存斜面积精准转换。研究揭示了煤层在向斜轴部与翼部分布规律，提出多因子动态核算体系，为矿井深部开拓规划与产能接续提供量化依据，有效提升矿产资源评价的科学性。

Abstract: Addressing the complex geological conditions and limited accuracy of reserve calculation at Ganxing Coal Mine in Nayong County, Guizhou Province, this study conducts a refined estimation of minable coal seam reserves. By finely dividing the coal-bearing strata of the Upper Permian Longtan Formation in the mining area, a sequence stratigraphic framework with C₃₀, C₃₁, and C₃₂ as the main mining seams was established. A three-dimensional geometric estimation model was established using the geological block method, and an occurrence correction coefficient and bulk density weighted algorithm were introduced to achieve accurate conversion from horizontal projected area to actual oblique area. The study reveals the distribution patterns of coal seams in the syncline axis and limbs, and proposes a multi-factor dynamic accounting system, providing a quantitative basis for deep mine development planning and production capacity continuity, effectively improving the scientific nature of mineral resource evaluation.