Lifes a Beach Geological Processes Living wih_Trembanis_Date_050610_72

Lifes a Beach Geological Processes Living wih_Trembanis_Date_050610_72

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Coastal Processes: hydrodynamics- wave currents turbulence-vortices roughness- bedfroms objects sediment-composition texture scour processes geology- facies/strata all interrelated within each other Scour Processes: what is scour? o scour is the process by which supporting bed material is removed from the vicinity of the submarine object by the flow why is it important? o structural failure around bridges, piers, pipelines o prediction of mine burial o causative process in the formation of rippled scour depressions o provide insight into burial and preservation of marine artifacts o important process in sediment transport how can we model/predict scour behavior? Predicting Mine Scour Burial: motivation and intro to scour processes/model predicting hydrodynamic conditions predicting mine burial below ambient seabed interactive web-based mine burial model
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Unformatted text preview: • can mine burial be meaningful predicted based on principles of scour processes? • type 1: % burial by depth • type 2: % surface area burial Conclusions: • relationships for scour of pipes and pilings can be used to model mine burial • mine burial can be predicted and forecast using available global wave models • model limitations include wave forecast accuracy and scour pit backfilling • scour models apply best in fine sand • in coarse sand, scour behavior is distinct, bed forms play critical limiting role in burial • an interactive scour burial model for field sites is available on the web Clicker Questions: 1. The process by which fluid flow is accelerated around an object causing the local removal of sediment and gradual setting o the object into the seabed is called scour...
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This note was uploaded on 08/30/2010 for the course GEOL 120 taught by Professor Arthurctrembanis during the Spring '10 term at University of Delaware.

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Lifes a Beach Geological Processes Living wih_Trembanis_Date_050610_72

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