In order to dry up and repair lining of 7500-ft brick lined tunnel at Baltimore, to eliminate formation of icicles during winter and permit electric train operation, 9-car, self-contained gunite train was used to carry out work, without interfering with traffic; problems encountered in maintaining equipment to full efficiency under existing conditions.
Large scale operations speed tunnel relining project
Ry Eng Maintenance
Railway Engineering and Maintenance ; 32 , n 2
1936
Aufsatz (Zeitschrift)
Englisch
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