Sustainable usage of dredged clay materials as land reclamation fills. Millions of cubic metres of dredged materials are removed from river and sea beds every year in dredging projects. It is common to dump a significant portion of the dredged spoils into the sea which can result in serious environmental problems such as deterioration of water quality, damage to aquatic habitats, disruption of ecosystems and dispersion of fine clay particles in seawater. The proposed use of dredged clays as land ....Sustainable usage of dredged clay materials as land reclamation fills. Millions of cubic metres of dredged materials are removed from river and sea beds every year in dredging projects. It is common to dump a significant portion of the dredged spoils into the sea which can result in serious environmental problems such as deterioration of water quality, damage to aquatic habitats, disruption of ecosystems and dispersion of fine clay particles in seawater. The proposed use of dredged clays as land reclamation fill will lead to a substantial reduction in or even eliminate the need for dumping dredged clays into offshore dumping locations. The stabilized dredged clays have great potential if their geotechnical characteristics are adequately understood.Read moreRead less
Cracking of Embankment Dams Under Normal Operating, and Flood Conditions, and the Implications for Internal Erosion and Piping Failure. Internal erosion and piping causes half of embankment dam failures and accidents. Historically about two percent of dams have been affected. The most common cause of initiation of erosion is in cracks or by hydraulic fracture in low stress zones. This project will develop methods for predicting the opening width and depth of desiccation and stress induced cra ....Cracking of Embankment Dams Under Normal Operating, and Flood Conditions, and the Implications for Internal Erosion and Piping Failure. Internal erosion and piping causes half of embankment dam failures and accidents. Historically about two percent of dams have been affected. The most common cause of initiation of erosion is in cracks or by hydraulic fracture in low stress zones. This project will develop methods for predicting the opening width and depth of desiccation and stress induced cracking in the dam crest, and for assessing whether the cracks will close before erosion begins as the reservoir water rises, or whether erosion will self limit or continue.Read moreRead less