Ahmed Amir Khalil

Director of Engineering, Applied Science International (ASI).

TOPIC

Risk Analysis during mechanical demolition of Champlain Bridge.

SYNOPSIS

This presentation provides guidance on structural risk analysis during demolition of multiple span bridges by presenting a case study for  demolition planning of the 3-km-long Champlain Bridge. The deconstruction of the original Champlain Bridge in Montreal is performed by the Nouvel Horizon St-Laurent (NHSL) group formed by Pomerleau Inc. and Delsan-A.I.M. Environmental Services Inc. The deconstruction work will be done within the project’s global $400-million envelope. The original Champlain Bridge deconstruction project began in July 2020 and will take place over a period of 43 months, until January 2024.

BIOGRAPHY

Dr. Khalil is a pioneer in the area of engineering simulations for demolition planning with 25 years of structural engineering experience. During the past 15 years he specialized in numerical modeling of the demolition of structures, whether mechanically in stages or induced through implosion or cut and pull techniques.

The team led by Dr. Ahmed at Applied Science International LLC performed engineering simulations for a variety of industrial structures including cooling towers, silos, tanks, boilers, reactors, conveyers, and stacks. He oversaw demolition planning for special structures such as prestressed and cable stayed bridges with various demolition methodologies. He performed demolition simulations for steel, masonry, and reinforced concrete structures comprising hospitals, sports stadiums, as well as residential and commercial buildings. In 2020, his team did the engineering modeling for the tallest building in the world to be demolished by implosion. In addition to structural analysis, he manages performing numerical simulations to ensure vibration, noise, and dust generated by demolition activities are within acceptable performance limits.