| 帕力旦·麦麦提,崔军舰,周贺,邹明俊.基于分形理论矿井地质构造定量化研究[J].矿产勘查,2026,17(5):776-785 |
| 基于分形理论矿井地质构造定量化研究 |
| Quantitative analysis of mine geological structures based on fractal theory |
| 投稿时间：2025-04-24 |
| DOI：10.20008/j.kckc.202605003 |
| 中文关键词: 地质构造 断层分维值 曲率参数 分形理论 |
| 英文关键词: geological structures fault fractal dimension value curvature parameter fractal theory |
| 基金项目:本文受河南省国际科技合作项目(242102520034)资助。 |
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| 摘要点击次数: 112 |
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| 中文摘要: |
| 随着煤矿开采向深部复杂构造区延伸，传统定性方法难以量化地质构造对煤层安全开发与灾害防控的影响。本文基于分形理论对山西某矿区 8#和 15#煤层地质构造进行了定量化研究，并分析了矿区断层分维值(D)与曲率参数(平均曲率、高斯曲率、最大主曲率)分布特征，最终揭示了矿区构造空间分异规律。结果表明:构造复杂度呈东北高-西南低梯度分异，15#煤层断层分维值(0.417～1.133)高于 8#煤层(0.317～1.274)，反映垂向应力场差异与多期构造叠加效应；褶皱挤压强度与曲率参数显著相关，15#煤层曲率响应敏感性更高，其高曲率带(>5×10-3)与向斜转折端空间匹配基本一致；东部区域曲率场与褶皱轴迹耦合度显著优于西部，隐伏构造(陷落柱)可能引发环状负曲率异常。研究表明，分形理论可用于矿井构造定量化研究，可为煤层安全开发与灾害防控提供科学依据。 |
| 英文摘要: |
| With the extension of coal mining into deep and complex structural zones, traditional qualitativemethods struggle to quantify the impact of geological structures on safe coal seam development and disaster preven-tion in deep layers. This article quantitatively studied the geological structure of coal seams 8# and 15# in a miningarea in Shanxi Province based on fractal theory, and analyzed the distribution characteristics of fault fractal dimen-sion (D) and curvature parameters (average curvature, Gaussian curvature, maximum principal curvature) in the min-ing area. Finally, the spatial differentiation law of mining area structure was revealed. Key results include: Struc-tural complexity exhibits a northeast-high to southwest-low gradient pattern. The fault fractal dimension of the No.15 coal seam (0.417-1.133) exceeds that of the No. 8 seam (0.317-1.274), reflecting vertical stress field heterogene-ity and multi-phase tectonic superposition effects. Fold compression intensity strongly correlates with curvature pa-rameters, with the No. 15 seam showing higher curvature sensitivity. High-curvature zones (>5×10-3) spatially coin-cide with synclinal hinge zones. The coupling degree between curvature fields and fold axial traces in the easternarea significantly surpasses that in the west, where concealed structures (e.g., collapse columns) may induce annularnegative curvature anomalies. Research has shown that fractal theory can be used for quantitative research on minestructures, providing a scientific basis for coal seam safety development and disaster prevention and control. |
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