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Concrete blocks support shield-driven tunnel
50,000 blocks, 15 in. thick, 30 in. wide, and 6 ft long, weighing 2840 lb, are needed to line 19,000-ft Detroit sewer tunnel; finished bore diam is 10 ft; tunnel is driven with circular Mayo tunnel shield, 12 ft long, and equipped with 14 150-ton hydraulic jacks; illustrated description of work procedure.
Concrete blocks support shield-driven tunnel
50,000 blocks, 15 in. thick, 30 in. wide, and 6 ft long, weighing 2840 lb, are needed to line 19,000-ft Detroit sewer tunnel; finished bore diam is 10 ft; tunnel is driven with circular Mayo tunnel shield, 12 ft long, and equipped with 14 150-ton hydraulic jacks; illustrated description of work procedure.
Concrete blocks support shield-driven tunnel
Construction Methods Equipment
Perez, H.T. (author)
1953
5 pages
Article (Journal)
English
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