2007/2008 LECTURE SERIES
Date: Tuesday March 4, 2008
Place: Austrian Canadian Cultural Centre, 3112 - 11 Street NE, Calgary
Time:
Speaker: Dr. Bengt H. Fellenius,
Ph.D., P.Eng.
Bengt Fellenius Consultants
Topic: Foundation
Design and Test Results for the New International Airport in Bangkok, Thailand
Abstract:
The Suvarnabhhumi
airport, the new international airport in Bangkok, Thailand, covers an area of
8 km by 4 km (8,000 acres) in a former swamp, a flat marine delta about 30 km
south of Bangkok. The soil profile consists of a thin weathered crust on
typical soft to stiff, compressible Bangkok clay deposited on a sand layer at a
depth of about 25 m extending to about 47 m. Below the sand lies an about 10 m
thick layer of hard silty clay followed by very dense
sand to great depth.
Most of the area is devoted to runways, roadways,
and parking, which required extensive ground improvement to minimize
settlement. The structures consist of several units sharing footprints:
terminal building, concourse, trellis structure, parking garage, and elevated
roadways, which are founded on three types of piles installed to the sand below
the clay layer, 1,000mm bored pile, 600mm diameter bored piles, and 600mm
driven cylinder piles. A total of 25,000+ piles were installed. The
stress-bulbs from the various foundations overlap, resulting in a complicated
settlement analysis. The design of the airport started in 1995 and construction
was completed in 2005 at a total cost of close to US$30 billion.
The lecture will present aspects of the soil
improvement work, analysis of results from pile tests, and the design of the
piled foundations for capacity, settlement, and downdrag.
About the Speaker:
Dr. Bengt H. Fellenius,
formerly Professor of Civil Engineering at the University Of Ottawa, is an
internationally recognized foundation engineering consultant and the author of
more than 250 technical papers. His professional experience comes from a wide
variety of assignments that encompass foundation design for industrial plants,
water and sewage treatment facilities, bridges and highway projects, marine
structures, and urban area development, as well as participation in special
investigations, instrumented field tests, etc. Dr. Fellenius
has given lectures and courses to several universities and international
conferences throughout America, Europe, and South-East Asia. He currently
lives in Calgary.