Plan was developed by New Zealand Railways for laying new track in tunnel through Rimutaka Mountain range; while concreting floor of new tunnel, road welded rails in nine 39 ft lengths, added ties and fastenings to form track panels 351 ft long, and laid them intact with traveling hoists; tunnel is 5.46 mi long.
Fast track laying in tunnel [midline ellipsis] using pre-assembled panels
Ry Track Structures
Railway Track and Structures ; 53 , n 8
1957
2 pages
Aufsatz (Zeitschrift)
Englisch
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