Dredging Operations Technical Support Program. Mathematical Model of the Consolidation/Desiccation Processes in Dredged Material.
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB
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This report documents the development of a mathematical model of the consolidationdesiccation process in soft, fine-grained soils such as dredged material provides for computer solution of the model and verifies the solution through comparisons with field measurements. The consolidation process is modeled through the previously documented finite strain theory of consolidation which accounts for the large strains and nonlinear soil properties inherent in the very soft materials commonly found in maintenance dredgings. Pertinent equations necessary for process calculation are given. The mathematical model is next rewritten for computer solution through the computer program PCDDF. The model and computer solution are then tested through comparisons of predicted material settlements with measured settlements in three confined disposal areas. Appendices to the report include a detailed users manual Appendix A for computer program PCDDF along with a program listing Appendix B and sample input and output data Appendix C. Consolidation properties Appendix D and the design of a comprehensive field verification site Appendix E are also included.
- Soil Mechanics
- Civil Engineering