复杂脉状矿体精细化三维建模方法探讨

李宏达; 吴志春; 柏瑞; 董冲; 马粉玲; 李华亮; 贾飞; 李斌; 祝一丹

doi:10.19509/j.cnki.dzkq.tb20240050

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复杂脉状矿体精细化三维建模方法探讨

更新时间：2026-11-05

- 复杂脉状矿体精细化三维建模方法探讨
- Bulletin of Geological Science and Technology Vol. 44, Issue 4, Pages: 379-390(2025)
- 作者机构：
  
  1. 东华理工大学地球科学学院
  2. 山东黄金地质矿产勘查有限公司
- 作者简介：
- 基金信息：
- DOI：10.19509/j.cnki.dzkq.tb20240050
  CLC： TD163
- Online First：08 April 2024，
  
  Published：2025
- 稿件说明：
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李宏达, 吴志春, 柏瑞, et al. 复杂脉状矿体精细化三维建模方法探讨[J]. Bulletin of Geological Science and Technology, 2025, 44(4): 379-390.
DOI：

李宏达, 吴志春, 柏瑞, et al. 复杂脉状矿体精细化三维建模方法探讨[J]. Bulletin of Geological Science and Technology, 2025, 44(4): 379-390. DOI： 10.19509/j.cnki.dzkq.tb20240050.

摘要

利用三维建模技术模拟地质体的三维形态，能够有效揭示地质体的空间分布特征。与隐式建模方法相比较，显式建模方法在小尺度的地质结构特征上刻画更加精准，然而对于形态复杂脉状矿体等地质体的大比例尺精细化三维建模，还存在建模速度慢、难度大、精度偏低等问题亟待解决。针对部分复杂脉状矿体，综合运用加密约束点、构建矿体劈分线、分段式建模、矿体缝合等技术，系统开展了分枝分岔复合矿体、存在无矿天窗矿体、含夹石矿体、断层切穿矿体4种复杂脉状矿体的显式三维建模方法研究，实现了复杂脉状矿体的高精度快速三维建模，对稀有、贵金属等复杂脉状矿体的精细化三维建模、矿产资源量估算、矿产资源开发利用方案制定等具有重要意义。

Abstract

ObjectiveThe simulation of three-dimensional morphology of geological bodies through 3D modeling technology can effectively reveal the spatial distribution characteristics of geological bodies. Compared with implicit modeling methods

explicit modeling methods can depict the small-scale geological structure features more accurately. However

for the large-scale and fine 3D modeling of complex geological bodies such as vein-type ore bodies with complex shapes

there are still problems such as slow modeling speed

high difficulty

and low accuracy that need to be solved. MethodsThis study

focusing on some complex vein-type ore bodies

comprehensively applied techniques such as densified constraint points

construction of ore body splitting lines

segmented modeling

and ore body stitching

to systematically conduct research on the explicit 3D modeling methods of four types of vein-type ore bodies: branched and bifurcated composite ore bodies

ore bodies with barren windows

ore bodies with intercalated rocks

and ore bodies cut by faults. Results and ConclusionIt achieved high-precision and rapid 3D modeling of complex vein-type ore bodies

which is of great significance for the fine 3D modeling of rare and precious metal vein-type ore bodies

estimation of mineral resources

and formulation of mineral resource development and utilization plans.

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Keywords

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