Numerical investigation of TBM shield jamming mechanisms and mitigation measures using a GPU-Parallelized 3D FDEM method

Key Points

• Shield jamming mechanisms significantly impact the efficiency of tunneling processes, leading to potential delays and challenges.
• The numerical investigation utilized a GPU-parallelized 3D FDEM method to analyze these jamming mechanisms effectively.
• Findings reveal key factors contributing to shield jamming, providing insights for developing effective mitigation measures.
• This work highlights the need for further studies to refine mitigation strategies for improved tunneling performance.