DOAJ Open Access 2020

Analysis of a tunnel failure caused by leakage of the shield tail seal system

Chao Yu Annan Zhou Jun Chen Arul Arulrajah Suksun Horpibulsuk

Abstrak

This paper presents an analysis of a tunnel failure accident during shield tunnel construction on Foshan Metro Line 2 in China. The failure is caused by the leakage of the multilayer seal system, which consists of several brush seals at the tail of the shield. Four different failure modes for the multilayer seal system are discussed. A simple structural analysis of the brush seals is then conducted, and failure mode 4 (failure due to brush seal deformation) is identified as a major reason for the Foshan tunnel accident. A finite element method (FEM) analysis is employed to validate the conclusions drawn from the simple structural analysis of the brush seals. Keywords: Leakage, Shield tunneling, Brush seals, Finite element

Topik & Kata Kunci

Engineering geology. Rock mechanics. Soil mechanics. Underground construction

Penulis (5)

Chao Yu

Annan Zhou

Jun Chen

Arul Arulrajah

Suksun Horpibulsuk

Format Sitasi

APA MLA BibTeX

Yu, C., Zhou, A., Chen, J., Arulrajah, A., Horpibulsuk, S. (2020). Analysis of a tunnel failure caused by leakage of the shield tail seal system. https://doi.org/10.1016/j.undsp.2018.11.003

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1016/j.undsp.2018.11.003

Informasi Jurnal

Tahun Terbit: 2020
Sumber Database: DOAJ
DOI: 10.1016/j.undsp.2018.11.003
Akses: Open Access ✓