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Evaluation of Rock Mass Quality Based on Traditional Stability Classification and Fractal Theory
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Yimin HAO1, Yuefen ZHANG2, 3, Yongsheng ZHU1, Shuyu HAO4, Fuxin RUI5, Weidong SONG6, Jiyang TIAN2, 3
Mining and Metallurgical Engineering | 2026, 46(2) : 52 - 59
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Mining and Metallurgical Engineering | 2026, 46(2): 52-59
• MINING •
Evaluation of Rock Mass Quality Based on Traditional Stability Classification and Fractal Theory
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Yimin HAO1, Yuefen ZHANG2, 3, Yongsheng ZHU1, Shuyu HAO4, Fuxin RUI5, Weidong SONG6, Jiyang TIAN2, 3
Affiliations
  • 1.Yajiang Clean Energy Science and Technology Research (Beijing) Co., Ltd., Beijing 100038, China
  • 2.China Institute of Water Resources and Hydropower Research, Beijing 100038, China
  • 3.Research Center on Flood & Drought Disaster Prevention and Reduction of the Ministry of Water Resources, Beijing 100038, China
  • 4.School of Information Engineering, Zhongnan University of Economics and Law, Wuhan 420100, Hubei, China
  • 5.School of Civil Engineering, Tianjin University, Tianjin 300350, China
  • 6.School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
doi: 10.3969/j.issn.0253-6099.2026.02.008
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For the Shandong Xinhui Gold Mine, 20 joints and fractures in rock mass were scanned and measured by using the ShapeMetriX 3D system, and the rock mass occurrence and geometric data of joints were obtained. Then, three traditional stability classification systems (BQ classification, Q classification, and RMR classification) were adopted to evaluate the rock mass stability, and fractal theory was introduced to analyze the spatial distribution characteristics of joints. The results show that rock mass quality is evaluated as relatively the same grade by three classification methods, with the overall stability rated from average to poor. Specifically, the stability of the hanging wall and its contact zone is basically rated as grade Ⅳ or above; the ore body stability is mainly rated as grade Ⅲ; the stability of the surrounding rock of footwall is rated as relatively good, with some as grade Ⅱ. The rock mass with fractal dimension less than 1.1 is good in quality; while the rock mass with fractal dimension more than 1.1 is poor in quality. Based on the above research results, a rock mass quality evaluation scheme with the fractal dimension of joint fracture distribution as the classification index is primarily proposed.

rock mass stability  /  rock mass classification  /  rock mass quality evaluation  /  BQ classification system  /  Q classification system  /  RMR classification system  /  jointed rock mass  /  fractal theory  /  fractal dimension
郝益民, 章跃芬, 朱永生, 郝书玉, 芮福鑫, 宋卫东, 田济扬. 基于传统稳定性分级方法及分形理论的岩体质量评价. 矿冶工程杂志, 2026 , 46 (2) : 52 -59 . DOI: 10.3969/j.issn.0253-6099.2026.02.008
Yimin HAO, Yuefen ZHANG, Yongsheng ZHU, Shuyu HAO, Fuxin RUI, Weidong SONG, Jiyang TIAN. Evaluation of Rock Mass Quality Based on Traditional Stability Classification and Fractal Theory[J]. Mining and Metallurgical Engineering, 2026 , 46 (2) : 52 -59 . DOI: 10.3969/j.issn.0253-6099.2026.02.008
Appendix
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Year 2026 volume 46 Issue 2
116
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Article Info
doi: 10.3969/j.issn.0253-6099.2026.02.008
  • Receive Date：2025-11-13
  • Online Date：2026-10-08
Article Data
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History
  • Received：2025-11-13
Funding
Affiliations
    1.Yajiang Clean Energy Science and Technology Research (Beijing) Co., Ltd., Beijing 100038, China
    2.China Institute of Water Resources and Hydropower Research, Beijing 100038, China
    3.Research Center on Flood & Drought Disaster Prevention and Reduction of the Ministry of Water Resources, Beijing 100038, China
    4.School of Information Engineering, Zhongnan University of Economics and Law, Wuhan 420100, Hubei, China
    5.School of Civil Engineering, Tianjin University, Tianjin 300350, China
    6.School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2026.02.008
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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