Average progress of 20 ft. per heading each 10-hr, shift was maintained in driving with shields 21-ft. water tunnel, 12,000 ft. long, between River Rouge and Ford Motor Co.'s Dearborn plant in Detroit; precast blocks successfully used after timber cant lining fails to withstand pressure of shield jacks; tunnel has capacity of 913.6 m.g.d.; hydraulic erector mounted on independent carriage; design of blocks and block-making plants. (See also - (discussion), no. 15, Oct. 8, p. 584; Concrete Products, vol. 40, no. 2, Feb. 1931, p. 33, 2 figs)
Concrete block lining permits rapid driving of large water tunnel in Detroit
Eng. News-Rec
Engineering News-Record ; 107 , n 6
1931
5 pages
8 Figs.
Article (Journal)
English
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