考虑截面规则性的柱状节理岩体变形及强度特性研究

朱姝; 阙相成; 朱珍德; 朱其志

doi:10.16285/j.rsm.2023.0090

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考虑截面规则性的柱状节理岩体变形及强度特性研究

更新时间：2026-06-28

- 考虑截面规则性的柱状节理岩体变形及强度特性研究
- Vol. 45, Issue 1, Pages: 213-225(2024)
- 作者机构：
  
  1. 河海大学岩土力学与堤坝工程教育部重点实验室
  2. 河海大学江苏省岩土工程技术工程研究中心
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2023.0090
  CLC： TU45
- Online First：17 January 2024，
  
  Published：2024
- 稿件说明：
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朱姝, 阙相成, 朱珍德, et al. 考虑截面规则性的柱状节理岩体变形及强度特性研究[J]. 2024, 45(1): 213-225.
DOI：

朱姝, 阙相成, 朱珍德, et al. 考虑截面规则性的柱状节理岩体变形及强度特性研究[J]. 2024, 45(1): 213-225. DOI： 10.16285/j.rsm.2023.0090.

摘要

柱状节理岩体的复杂结构使其现场力学参数的确定存在困难，可靠地估计柱状节理岩体强度及变形特性对工程安全至关重要。结合Voronoi图形及3D打印技术制作不规则柱状节理岩体光敏树脂模具，并制备了具有不同倾角的规则及不规则柱状节理岩体试样。基于开展的单轴压缩试验结果，分析不同截面柱状节理岩体的变形及强度特性差异。根据试样最终破坏形态，揭示柱状节理岩体破坏模式及机制。结合已有研究结果，描述节理面材料对柱状节理岩体破坏形态及强度的影响。基于传统节理系数方法，提出了更能反映柱状节理岩体柱体结构特征的修正节理系数方法。采用修正节理系数法建立规则及不规则柱状节理岩体试验结果与现场变形及强度参数间的经验关系，将所提出计算公式应用于白鹤滩水电站工程，预测结果与现场实测值及RMR法（RMR为岩石质量评分指标）、Q法（Q为岩体质量指标）的预测值进行比较。结果表明，对于现场变形和强度参数，所提出的修正节理系数法的预测结果与现场实测结果较为吻合。

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