RECENT DEVELOPMENTS IN CANADIAN TUNNELLING TECHNOLOGY.

被引：0
|
作者：
Stewart, D.B.
机构：
来源：
World mining equipment | 1986年 / 10卷 / 04期
关键词：
TUNNELING MACHINES;
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摘要：
In the late 1970s the Cape Breton Development Corporation delineated a submarine coal resource off Cape Pierce on Cape Breton Island, Nova Scotia, Canada. Following a project definition study, site work commenced at the Donkin-Morien Development Project in 1980. In 1981/82 a demonstration of an experimental tunnel boring machine took place in the second tunnel. The experimental unit was a 4 m diameter earth tunnelling machine modified by Lovat Tunnel Equipment Inc, Beaver Underground Structures and Hughes Tool Ltd to carry a rock-cutting head. Success led to a decision to construct a prototype 7. 6 m diameter machine which is described.
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页码：36 / 37
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