SOLVING THE PROBLEMS OF PILOTING A TUNNEL THROUGH SWELLING ANHYDRITE.

被引:0
|
作者
Martin, David
机构
来源
Tunnels and Tunnelling International | 1986年 / 18卷 / 03期
关键词
COMPRESSED AIR - GEOLOGY - Engineering - TUNNELING MACHINES - Design;
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学科分类号
摘要
Germany is busy constructing some new high speed twin track railways for a new generation of fast trains designed to ease the pressure on the autobahn system by offering business executives alternative connections between major cities. A prototype design of blade shield TBM working under compressed air and a new mix-at-the-face concreting train are helping to solve the problems of driving a 5. 2 m diameter pilot tunnel for a railway through difficult ground in Germany.
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页码:55 / 57
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