Descriptions of D'Appolonia projects involving geosynthetics applications are provided in the following:
Highland Park Reservoir Embankment Repair
D’Appolonia was retained by the City of Pittsburgh Department of Engineering to perform a subsurface exploration program and to develop corrective measures for an embankment supporting small-scale railroad tracks for the Pittsburgh Zoo train. We designed and supervised the construction of a geogrid-reinforced granular buttress to remediate the damaged slope and restore the slope bench on which the railroad track was located.
Preparation of Landfill Operation and Closure Plans
D’Appolonia carried out a site exploration program, performed slope stability analyses for landfill embankments, and prepared plans and specifications for closure of a municipal waste landfill in New Jersey. The landfill cover was designed to accomodate five feet of settlement and incorporated a 30-mil-thick HDPE liner. We also prepared post-closure maintenance documents.