In protecting more than 27,000 lin. ft. in almost every conceivable class of material this railroad has developed many "best practices"; special pipe-line joint designed; air supplied from outside of tunnel; sketch showing common standard reinforced-concrete lining for tunnels on Southern Pacific; variation of cost figures.
Fourteen years of tunnel-lining work on Southern Pacific
Ry. Eng. Maintenance
Railway Engineering and Maintenance ; 27 , n 7
1931
6 pages
5 Figs.
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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