Tunnel construction in landslide area using long face bolts and early invert closure

Yoshihiko USUDA; Koji KANZAWA; Hiroyuki HIRANO; Tomoharu IWASAKI; Norikazu SHIMIZU

doi:10.11187/ijjcrm.6.1

Yoshihiko USUDA, Koji KANZAWA, Hiroyuki HIRANO, Tomoharu IWASAKI, Norikazu SHIMIZU

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Keywords: Observational procedure, Tunneling, Landslide, Face bolts, Invert closure

JOURNAL FREE ACCESS

2009 Volume 6 Issue 1 Pages 1-6

DOI https://doi.org/10.11187/ijjcrm.6.1

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Abstract

This paper describes the observational procedure of a shallow tunnel construction in landslide area. The purpose of this research is to develop a construction method to control the displacements of the landslide and the tunnel by long face bolts and early invert closure. The practical application is proven that the both methods of long face bolts and early invert closure are effective for the tunnel construction under such a difficult condition.

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