OasisLMS

Abstract:

United Airlines and the City of Houston/Houston Airport System expanded and upgraded existing Terminal B at IAH airport in Houston TX, intended for "revolutionizing the passenger experience... (by)...creating a terminal that truly embodies the spirit of Houston while prioritizing sustainability." The project includes a 250,000-square-foot addition featuring a ticket hall, security screening, and baggage handling systems as well as "renovations of the existing 275,000-square-foot terminal into the post-security area."

Preliminary foundation drawings included 18-in and 24-in Augered, Cast-in-place (ACIP) piles, 40-ft to 90-ft in effective length, in 1- to 4-pile groups and 24-in, 36-in, and 48-in diameter drilled shafts, generally 80-ft to 95-ft in length, in 1- to 10-pile groups. Due to access issues at some drilled shaft locations, Berkel was asked to evaluate potential 18-in- and 24-in-diameter ACIP piles to replace some 24-in- and 36-in-diameter drilled shafts. This presentation includes the results of the test program of the 18-in and 24-in ACIP piles installed in limited access conditions compared with predicted capacities from current available design methods. For comparison, the results of the test program of ACIP piles installed for the original scope, from traditional crane-supported drilling platform are also presented.