Package Description

Over the past 40 years, ground improvement has become increasingly important to the geotechnical community as the number of sites with suitable bearing soils become more rare. Increasingly more available sites have received various landfill materials, be it municipal solid waste (MSW) from households, construction and demolition (C&D) debris, or soil materials exported from another site. Hence, the challenges to engineers and contractors to design and construct new development within budget and on time increase each year.

This presentation discusses the use of dynamic compaction as a method to improve in-place landfill materials to where surface construction can proceed without excessive long-term settlements. Chris will explore the design approach and means and methods used while conducting dynamic compaction programs at various landfill sites and the means for evaluating the programs’ effectiveness. Chris will outline data from successfully completed projects as well as some of the more notable case histories for construction on landfill sites. He will draw conclusions as to the current state-of-the-practice in the design and implementation of dynamic compaction programs on sites with varying landfill composition.