APE Drilling takes on the Big Apple with its Geo-Exchange System
We recently teamed up with Lita Construction to install 22 each 7.625″ diameter pile at a 40′ depth to support a 19′-6″ tall cantilevered retaining wall. This wall was constructed in efforts to expand the usable square footage of a residential lot over looking the East River. All 22 piles were designed to incorporate APE Drilling’s Geo-Exchange System. This system creates a closed loop that can be run in series to exchange the water temperature circulating through the loop with ground temperature for both the heating and cooling needs of the Home.
Load testing was preformed proving a 280 kip ultimate load was achieved on the piles and a geo-thermal strain test was carried out to qualify that the design minimum of 110 btu’s per/ft was met. Post testing results not only achieved 110 btu’s, but exceeded expectation by over 90 btu’s per/ft in each of the piling.