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...

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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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