Home Journals Articles Updates About
CN
image
收藏切换
Fractal characteristics of joint surface morphology of Pengshui shale and anisotropic characterization based on joint roughness coefficient
收藏切换
PDF
Jia-bin DONG1, 2, Yi-fang LU1, Yi JIN1, 2, 3, Wen-hao DONG1, Peng HOU4, Shun-xi LIU1, Ran NIU5
Rock and Soil Mechanics | 2025, 46(11) : 3549 - 3561
Less
收藏切换
Rock and Soil Mechanics | 2025, 46(11): 3549-3561
• Fundamental Theory and Experimental Research •
Fractal characteristics of joint surface morphology of Pengshui shale and anisotropic characterization based on joint roughness coefficient
Full
Jia-bin DONG1, 2, Yi-fang LU1, Yi JIN1, 2, 3, Wen-hao DONG1, Peng HOU4, Shun-xi LIU1, Ran NIU5
Affiliations
  • 1.School of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
  • 2.Henan Key Laboratory of Coal Measure Unconventional Resources Accumulation and Exploitation, Henan Polytechnic University, Jiaozuo, Henan 454003, China
  • 3.Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Polytechnic University, Jiaozuo, Henan 454003, China
  • 4.School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
  • 5.Henan Academy of Geology, Zhengzhou, Henan 450016, China
Published: 2025-11-14 doi: 10.16285/j.rsm.2024.00583
Outline
收藏切换

Quantitative characterization of the anisotropy of rock joint roughness is crucial for evaluating joint mechanical properties. However, the complex structure of joint surfaces and the limitations of current analytical methods pose significant challenges to roughness calculation and anisotropy evaluation. This study focuses on shale from the Pengshui area in Chongqing, China, combining fractal topography theory and the joint roughness coefficient (JRC) to characterize the anisotropy of joint surfaces. Using a 3D laser scanner, the morphology of joint surfaces from shale samples fractured in different directions was captured. JRC and Fractal Dimension (D) of joint profiles were then calculated in various directions to compare joint surface anisotropy. The results indicate that: (1) JRC, which considers both fractal properties and amplitude characteristics of joint profiles, shows a stronger correlation with fracture orientation than D. Using the bedding plane of shale as a reference, a larger angle between the reference plane and the fracturing direction results in a higher JRC value for the joint surface. (2) The JRC values for a single joint surface can be approximated by an elliptical fit, with the area of the ellipse increasing as the angle between the rock bedding and the fracturing direction increases. This implies that when the fracturing direction is perpendicular to the bedding plane, the fracture surface is rougher. This research provides a reference for characterizing joint surface anisotropy and offers guidance for understanding the relationship between fracturing direction and joint surface roughness.

fractal topography  /  fractal dimension  /  fracture surface  /  roughness  /  anisotropy
Jia-bin DONG, Yi-fang LU, Yi JIN, Wen-hao DONG, Peng HOU, Shun-xi LIU, Ran NIU. Fractal characteristics of joint surface morphology of Pengshui shale and anisotropic characterization based on joint roughness coefficient[J]. Rock and Soil Mechanics, 2025 , 46 (11) : 3549 -3561 . DOI: 10.16285/j.rsm.2024.00583
Funding
Less
  • National Natural Science foundation of China(42502167; 41972175)
  • Doctoral Foundation of Henan Polytechnic University(B2021-78)
  • Excellent Youth Foundation of Henan Scientific Committee(232300421025)
  • Fundamental Research Funds for the Universities of Henan Province(NSFRF220427)
Appendix
Less
Year 2025 volume 46 Issue 11
PDF
92
43
Cite this Article
BibTeX
Article Info
doi: 10.16285/j.rsm.2024.00583
  • Receive Date：2024-12-09
  • Online Date：2026-03-27
  • Published：2025-11-14
Article Data
Affiliations
History
  • Received：2024-12-09
  • Accepted：2025-05-08
Funding
National Natural Science foundation of China(42502167; 41972175)
Doctoral Foundation of Henan Polytechnic University(B2021-78)
Excellent Youth Foundation of Henan Scientific Committee(232300421025)
Fundamental Research Funds for the Universities of Henan Province(NSFRF220427)
Affiliations
    1.School of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
    2.Henan Key Laboratory of Coal Measure Unconventional Resources Accumulation and Exploitation, Henan Polytechnic University, Jiaozuo, Henan 454003, China
    3.Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Polytechnic University, Jiaozuo, Henan 454003, China
    4.School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China
    5.Henan Academy of Geology, Zhengzhou, Henan 450016, China
References
Share
https://castjournals.cast.org.cn/joweb/ytlx/EN/10.16285/j.rsm.2024.00583
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
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
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House