Topic
Dredging
About: Dredging is a research topic. Over the lifetime, 3300 publications have been published within this topic receiving 28325 citations.
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TL;DR: In this article, an integrated environmental planning model is briefly elaborated and a number of recommendations are made to improve the environmental, social and economic impacts of dredging and reclamation activities in Bahrain.
34 citations
TL;DR: In this article, the authors evaluate the impact of the Four Major Rivers Restoration Project on river flows using an unsteady flow simulation model and show that once the project is completed, the flood water level of the entire reach of both rivers will fall because water level decline due to channel dredging dominates water level rise due to the presence of weirs.
Abstract: The ongoing Four Major Rivers Restoration Project will drastically change the river environment of South Korea. The objective of this study is to evaluate the impact of the Four Major Rivers Restoration Project on river flows using an unsteady flow simulation model. The computational model was applied to the stream reaches of the Han River and the Nakdong River. Historical floods were simulated for the changed river environment as well as for the current river condition to investigate the flood mitigation effect of the project. The simulation results show that once the project is completed, the flood water level of the entire reach of both rivers will fall because water level decline due to the channel dredging dominates water level rise due to the presence of weirs. This mitigation effect was particularly significant for the upstream region of the Nakdong River because of large-scale dredging. A steady flow simulation was carried out using normal flow discharges to investigate the effect of the project on flow characteristics during non-flood periods. For the Han River, the normal water level rises upstream of the weirs, whereas it falls downstream owing to the dominant dredging effect. However, in spite of heavy dredging, the water level decline in the case of the Nakdong River is very limited because the effect of dredging is overwhelmed by the high normal pool level of the weirs. The increase in flow travel time of the Nakdong River after the completion of the project will be more significant than that of the Han River.
34 citations
TL;DR: In this paper, the authors used changes in adenylic energetic charge (AEC) and righting and recessing behaviour as indicators of stress caused by the act of dredging on scallops.
34 citations
TL;DR: The aim of this study was to develop a risk-based decision-making framework for the selection of sediment dredging option, accounting for the economic, environmental and technical aspects of dredging, which is beneficial for dredging and sediment management industries.
34 citations
31 Dec 1995
TL;DR: This conference was held June 23--24, 1994 in Montreal, Canada to provide a multidisciplinary forum for exchange of state-of-the-art information on identifying tests, methods, procedures, and materials used in support of dredging, treatment, and containment of contaminated sediments that are in need of standardization.
Abstract: This conference was held June 23--24, 1994 in Montreal, Canada. One purpose of this conference was to provide a multidisciplinary forum for exchange of state-of-the-art information on identifying tests, methods, procedures, and materials, used in support of dredging, treatment, and containment of contaminated sediments that are in need of standardization. Another objective was to provide a forum for discussion of past dredging practices and future directions, including the effects of sediment properties and behavior, equipment requirements, and the impact of regulations. Individual papers have been processed separately for inclusion in the appropriate data bases.
34 citations