A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Constructing soft-ground tunnel under Boston Harbor
Construction of 4850 ft long 30 ft diam vehicular tunnel by shield method; shield is driven with 28 shoving jacks of 200 ton capacity each and is equipped with hydraulically operated erector arm for setting lining segments; tunnel was driven so near to 42 ft deep river bottom that 20 ft thick protecting clay cover had to be placed over bottom to prevent water intrusion and blowouts of compressed air; after completion this cover will be removed.
Constructing soft-ground tunnel under Boston Harbor
Construction of 4850 ft long 30 ft diam vehicular tunnel by shield method; shield is driven with 28 shoving jacks of 200 ton capacity each and is equipped with hydraulically operated erector arm for setting lining segments; tunnel was driven so near to 42 ft deep river bottom that 20 ft thick protecting clay cover had to be placed over bottom to prevent water intrusion and blowouts of compressed air; after completion this cover will be removed.
Constructing soft-ground tunnel under Boston Harbor
Civ Eng (NY)
Richardson, C.A. (author)
1961
4 pages
Article (Journal)
English
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