The Design of Dredged Spoil Containment Basins Using Mass Sediment Properties

摘要

Laboratory studies of the settling and consolidation characteristics of a representative sample of Chesapeake Bay sediments were performed in order to refine existing methods for the design of spoil disposal basins. Settling and primary consolidation characteristics of these sediments were determined and correlated with the in situ sediment properties. This allows prediction of the rate and ultimate amount of settling and consolidation which is required in order to estimate the area and volume of the spoil basin. Existing spoil basin design procedures were applied to the design of three basins present in the Chesapeake Bay area. The results were compared with those obtained by a new procedure using the predictive equations developed in this research. The new procedure provides estimates closer to the actual basin dimensions than the earlier methods in two cases and in the third case the estimates are approximately equal.