A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
318 ft deep access shaft on Manhattan side for construction of 8.5 ft diam, 8000 ft long sewerage tunnel under East River was driven by using method of ground solidification by freezing; 21 freeze holes, 8 in. diam, 12 ft deep, were drilled around shaft for 6 in. diam steel freeze pipes supplied by two ammonia brine refrigeration units; concrete lining of frozen walls after excavation; construction of shaft in Brooklyn side and drilling of tunnel by using 5 drill jumbo and cautious blastings.
318 ft deep access shaft on Manhattan side for construction of 8.5 ft diam, 8000 ft long sewerage tunnel under East River was driven by using method of ground solidification by freezing; 21 freeze holes, 8 in. diam, 12 ft deep, were drilled around shaft for 6 in. diam steel freeze pipes supplied by two ammonia brine refrigeration units; concrete lining of frozen walls after excavation; construction of shaft in Brooklyn side and drilling of tunnel by using 5 drill jumbo and cautious blastings.
Cold "caisson" in Lower Manhattan
Compressed Air Mag
Parkhill, S.M. (author)
1960
6 pages
Article (Journal)
English
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