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Recent developments in rock tunnelling
Developments in drilling and mucking in construction of extensive tunnel system for hydroelectric development in Scotland; comparisons with methods used some 30 yr ago; use of modern micrometer or theodolite; full face driving instead of heading and bench method; drifter type drilling; tungsten carbide as drilling medium; new trends in excavation of underground power plants, and average sizes of roof span and chamber length.
Recent developments in rock tunnelling
Developments in drilling and mucking in construction of extensive tunnel system for hydroelectric development in Scotland; comparisons with methods used some 30 yr ago; use of modern micrometer or theodolite; full face driving instead of heading and bench method; drifter type drilling; tungsten carbide as drilling medium; new trends in excavation of underground power plants, and average sizes of roof span and chamber length.
Recent developments in rock tunnelling
Chartered Surveyor
Dickerson, L.H. (author)
Chartered Surveyor ; 92
1959
8 pages
Article (Journal)
English
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