'SLIDING ARMOUR' SHIELD SOLVES KURIYAMA TRAFFIC PROBLEMS.

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作者：
Harding, Piers G.
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来源：
Tunnels and Tunnelling International | 1981年 / 13卷 / 05期
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摘要：
The article describes a tunneling project that took place under a busy railway line with only 20cm of cover and strict orders not to interrupt train services. It reports on how a Japanese contractor solved the problem using augered steel pipes for overhead support and a blade shield for excavation.
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页码：44 / 45
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