River deltas are undoubtedly one of the increasingly significant number of natural environment whose equilibrium is being altered by human interventions. The effects of hydraulic structures along the river course is visible through the insufficient sediment supply towards the shoreline and becomes even more alarming when dealing with a remarkable increase in sea-level rise as the one observed during the last century. The Mississippi River Delta is an example of coastal landforms experiencing such processes and it is fundamental to study its litology, morphology and evolution in order to be able to address the problem as effectively as possible and try to understand what the scenarios of the future could be in terms of interventions. This thesis work, which results from a collaboration between Padua and Tulane university, is aimed at reproducing the evolution of a site in the Mississippi River Delta called Myrtle Grove Site during the Holocene through an advanced sedimentation and compaction 1D numerical model and to analyse the impact that a future nourishment operation could have on the system. Many geological, geotechnical and hydraulic aspects are considered throughout the analysis, thus giving a complete portrait of the case study. The results obtained take advantage of a certain number of scientific papers developing the same theme and used as source for comparison.

River deltas are undoubtedly one of the increasingly significant number of natural environment whose equilibrium is being altered by human interventions. The effects of hydraulic structures along the river course is visible through the insufficient sediment supply towards the shoreline and becomes even more alarming when dealing with a remarkable increase in sea-level rise as the one observed during the last century. The Mississippi River Delta is an example of coastal landforms experiencing such processes and it is fundamental to study its litology, morphology and evolution in order to be able to address the problem as effectively as possible and try to understand what the scenarios of the future could be in terms of interventions. This thesis work, which results from a collaboration between Padua and Tulane university, is aimed at reproducing the evolution of a site in the Mississippi River Delta called Myrtle Grove Site during the Holocene through an advanced sedimentation and compaction 1D numerical model and to analyse the impact that a future nourishment operation could have on the system. Many geological, geotechnical and hydraulic aspects are considered throughout the analysis, thus giving a complete portrait of the case study. The results obtained take advantage of a certain number of scientific papers developing the same theme and used as source for comparison.

Modelling the role of compaction in the aggradation and progradation of the Mississippi Delta during the Holocene

CARAZZOLO, GIULIO
2021/2022

Abstract

River deltas are undoubtedly one of the increasingly significant number of natural environment whose equilibrium is being altered by human interventions. The effects of hydraulic structures along the river course is visible through the insufficient sediment supply towards the shoreline and becomes even more alarming when dealing with a remarkable increase in sea-level rise as the one observed during the last century. The Mississippi River Delta is an example of coastal landforms experiencing such processes and it is fundamental to study its litology, morphology and evolution in order to be able to address the problem as effectively as possible and try to understand what the scenarios of the future could be in terms of interventions. This thesis work, which results from a collaboration between Padua and Tulane university, is aimed at reproducing the evolution of a site in the Mississippi River Delta called Myrtle Grove Site during the Holocene through an advanced sedimentation and compaction 1D numerical model and to analyse the impact that a future nourishment operation could have on the system. Many geological, geotechnical and hydraulic aspects are considered throughout the analysis, thus giving a complete portrait of the case study. The results obtained take advantage of a certain number of scientific papers developing the same theme and used as source for comparison.
2021
Modelling the role of compaction in the aggradation and progradation of the Mississippi Delta during the Holocene
River deltas are undoubtedly one of the increasingly significant number of natural environment whose equilibrium is being altered by human interventions. The effects of hydraulic structures along the river course is visible through the insufficient sediment supply towards the shoreline and becomes even more alarming when dealing with a remarkable increase in sea-level rise as the one observed during the last century. The Mississippi River Delta is an example of coastal landforms experiencing such processes and it is fundamental to study its litology, morphology and evolution in order to be able to address the problem as effectively as possible and try to understand what the scenarios of the future could be in terms of interventions. This thesis work, which results from a collaboration between Padua and Tulane university, is aimed at reproducing the evolution of a site in the Mississippi River Delta called Myrtle Grove Site during the Holocene through an advanced sedimentation and compaction 1D numerical model and to analyse the impact that a future nourishment operation could have on the system. Many geological, geotechnical and hydraulic aspects are considered throughout the analysis, thus giving a complete portrait of the case study. The results obtained take advantage of a certain number of scientific papers developing the same theme and used as source for comparison.
Modelling
compaction
Mississippi
aggradation
Holocene
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12608/29549