Back on Track at Coney

by George A. Munfakh, (M.ASCE), Vice Pres., Geotech. Dept.; Parsons, Brinckerhoff, Quade & Douglass, One Penn Plaza, 250 W. 34th St., New York, NY 10119,
Nassef N. Soliman, (F.ASCE), Geotech. Engr.; Parsons, Brinckerhoff, Quade & Douglas, One Penn Plaza, 250 W. 34th St., New York, NY 10119,

Serial Information: Civil Engineering—ASCE, 1987, Vol. 57, Issue 12, Pg. 58-60

Document Type: Feature article


All New York City subway repairs take place at a repair shop in Coney Island. The shop's floor was plagued by settlement problems since its construction on a filled swamp in 1927. After years of quick fixes, a major stabilization using mini-piles was instigated in 1984. Cost, $100 million. The mini-piles were successful in stabilizing the floor and did not stop shop operation when installed. These mini-piles were carefully tested during installation. Shop overhaul also included new structures and new equipment, which the mini-piles supported.

Subject Headings: Micro piles | Floors | Subways | Islands | Construction management | Wetlands (fresh water) | Equipment and machinery | Rehabilitation | New York City | New York | United States

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