Research paper

Unstable behavior of segmental ring under various pressures and its discrete element simulation.

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Title
Unstable behavior of segmental ring under various pressures and its discrete element simulation.
Content partner
The University of Auckland Library
Collection
ResearchSpace@Auckland
Description

In February 2012, a serious accident which resulted in five fatalities happened during a TBM-tunnel construction under the seabed in Japan. The cause of the accident appeared to be due to the Key-segment slipping out of the segment ring by the thrusting tailskin (wire brushes) of the TBM into the segment ring. This resulted in the collapse of the rings, causing the seabed ground and seawater to flow into the tunnel. We investigated how thin and thick segments without any circumferential joint...

Format
Research paper
Research format
Journal article
Date created
2018-11
Creator
Kikkawa, Naotaka / Hiraoka, Nobutaka / Itoh, Kazuya / Orense, Rolando
URL
http://hdl.handle.net/2292/46030
Related subjects
Humans / Equipment Failure / Accidents, Occupational / Pressure / Japan / Construction Industry

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