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Effects of joint inclination and matrix strength on mechanical properties of joint discs under splitting conditions

  • 01-01-2026
  • Original Paper
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Abstract

This study delves into the effects of joint inclination and matrix strength on the mechanical properties of joint discs under splitting conditions, focusing on splitting strength and damage modes. Through a combination of theoretical analysis, experimental study, and numerical simulation, the research provides a comprehensive understanding of how these factors influence the behavior of jointed rock bodies. The study utilizes 3D printing technology to simulate joint planes, offering a novel approach to investigating the mechanical properties of jointed rock bodies. It also employs particle flow software PFC to analyze microscopic properties, revealing the initiation and propagation behavior of microcracks under varying conditions. The findings highlight the critical role of joint inclination, joint roughness coefficient (JRC), and matrix strength in determining the splitting strength and damage modes of jointed rock bodies, with implications for reliability assessments in excavation perimeters and dam abutments.

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Title
Effects of joint inclination and matrix strength on mechanical properties of joint discs under splitting conditions
Authors
Renliang Shan
Mingyue Nie
Ruiyu Dong
Peng Sun
Nianzeng Liu
Haotian Wu
Dong Liu
Publication date
01-01-2026
Publisher
Springer Berlin Heidelberg
Published in
Bulletin of Engineering Geology and the Environment / Issue 1/2026
Print ISSN: 1435-9529
Electronic ISSN: 1435-9537
DOI
https://doi.org/10.1007/s10064-025-04700-6
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