A Review of Research Methodologies for Tunnel Excavation in Fault Fracture Zones

Zexi Chen; Yong Hao; Luobuzaxi; Yang Tang

doi:10.6919/ICJE.202508_11(8).0005

Authors

Zexi Chen
Yong Hao
Luobuzaxi
Yang Tang

DOI:

https://doi.org/10.6919/ICJE.202508_11(8).0005

Keywords:

Fault Fracture Zone; Tunnel; Theoretical Analytical Method; Physical Model Experiment; Numerical Simulation Method.

Abstract

Fault fracture zones represent typical unfavorable geological structures encountered in tunnel engineering. The inherent heterogeneity of the rock mass, structural fragmentation, and mechanical weakening characteristics within these zones readily induce disasters such as significant surrounding rock deformation, water inrushes, and mud outbursts, posing serious threats to construction safety. This paper systematically reviews three primary research methodologies for tunnel excavation in fault fracture zones: theoretical analytical methods, physical model experiments, and numerical simulation techniques. Research indicates that theoretical methods are effective for deriving key parameters, experimental methods excel in providing intuitive visualization of disaster evolution processes, and numerical methods are adept at conducting multi-factor coupling analyses. Future efforts should focus on synergistically integrating the strengths of these approaches, with an emphasis on deepening the application of intelligent algorithms and multi-field coupling models, to enhance disaster prevention and control capabilities for tunnels traversing fault zones.

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