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| No. | Title | Issue Date | Format |
| 1 | MITSUI Enlargement Shield Tunnelling Method | 1985 | Black & White/5pages |
| 2 | Enlargement Of Pre-Driven Shield Tunnel Section
by A New Method |
June 1986 | Black & White/10pages |
| 3 | Underground shield tunnel enlargement work | April 1991 | Black & White/7pages |
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| Copyright 2004 Shield Tunneling Association
of Japan, All rights reserved >> Privacy policy |
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