Scholarlink

<p>The coupled effects of fissure number and inclination on the mechanical behavior and energy evolution of rock masses are not fully understood, representing a critical gap in stability assessment. This study systematically investigates this interplay in granite under uniaxial compression using AE and DIC monitoring. Our results reveal three key findings: (1) Compressive strength and energy indicators exhibit a distinct “U-shaped” trend with inclination, minimizing at 45°, and decrease monotonically as fissure number increases. (2) The failure mechanism is governed by inclination, transitioning from tension-dominated (0°/90°) to shear-dominated (45°). (3) Rockburst proneness peaks at the 45° inclination and is significantly attenuated by the presence of multiple fissures. These findings clarify the complex relationship between fissure geometry and rock failure mechanisms, offering a quantitative basis for hazard prevention in fissured rock masses.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Failure Behavior and Energy Evolution of Granite Containing Pre-existing Fissures Characterized by AE and DIC

  • 期刊论文

  • 发表日期：

    2026年2月19日

查看全文
  • Run-ze Zhang,
  • Chuan-xin Rong,
  • Bin Wang,
  • Hua-qiao Xu,
  • Yan-zhe Li,
  • Yang Wang

摘要

The coupled effects of fissure number and inclination on the mechanical behavior and energy evolution of rock masses are not fully understood, representing a critical gap in stability assessment. This study systematically investigates this interplay in granite under uniaxial compression using AE and DIC monitoring. Our results reveal three key findings: (1) Compressive strength and energy indicators exhibit a distinct “U-shaped” trend with inclination, minimizing at 45°, and decrease monotonically as fissure number increases. (2) The failure mechanism is governed by inclination, transitioning from tension-dominated (0°/90°) to shear-dominated (45°). (3) Rockburst proneness peaks at the 45° inclination and is significantly attenuated by the presence of multiple fissures. These findings clarify the complex relationship between fissure geometry and rock failure mechanisms, offering a quantitative basis for hazard prevention in fissured rock masses.