Investigation of parallel joint density thresholds for granite tunnel failure based on physical model experiments and multiscale monitoring techniques

Investigation of parallel joint density thresholds for granite tunnel failure based on physical model experiments and multiscale monitoring techniques

Abstract Joint density significantly influences the failure modes of hard rock caverns, yet the underlying mechanisms remain poorly understood. This study systematically investigates the impact of parallel joint density on the failure behavior of hard rock tunnels by integrating physical model tests...

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Bibliographic Details
Main Authors: Huai-Sheng Xu, Shao-Jun Li, Ding-Ping Xu, Quan Jang, Liu Liu, Min-Zong Zheng, Xu-Feng Liu
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Scientific Reports
Subjects:
Parallel joints
Hard rock tunnel
Failure mode
Acoustic emission
Digital image correlation
Discrete element method
Online Access:https://doi.org/10.1038/s41598-025-13607-x
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https://doi.org/10.1038/s41598-025-13607-x

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