Cleveland Harbor, Ohio, Interim Dredge Disposal Plan: Geotextile Reinforcement of Raised Dredged Disposal Containment Dikes

摘要

The U.S. Army Corps of Engineers, Buffalo District, performs yearly maintenance dredging in the Cuyahoga River federal navigation channel in Cleveland, Ohio. Up to the present, the Corps has disposed of dredge material in three diked rubble mound (armor and fill stone) confined disposal facilities (CDFs) in Cleveland Harbor, Ohio. In 2003, it became evident that capacity in these facilities was rapidly being depleted. To provide more capacity, the facilities were vertically expanded with raised earth dikes: the first was CDF 12, constructed in 2008; the second was CDF 9 in 2010. This paper discusses the engineering analysis performed using geotextile reinforcement for raised CDFs and stabilization. It presents a design approach for geotextile reinforced embankments considering rotational mode of failure using GEO-SLOPE International Ltd.'s SLOPE/W software.