Research on a Standard of Precaution against and Control of Sudden Silting during Operation Maintenance Period of Mealy Sand Coast Channel
Huanghua Port is built on a silty and mealy sand coast,with 10-year recurrence period of precaution against and control of sudden silting for the approach channel.The coal harbor of Huanghua port was built more than 20 years ago,and its throughput capacity has been increasing year by year,which further highlights its importance as a coal hub.During the operation period,the approach channel to the coal harbor was maintained with a strengthened dredging force,a certain change in the channel silting characteristics occurred,the data on the silting were further consummated,the standard of precaution against and control of sudden silting can be upgraded,which improved the channel risk resistance.Based on the analysis of the measured data of sediment deposition,it is pointed out that more attention should be paid to the continual multi-frequency sudden silting with low recurrence period in addition to the precaution against and control of sudden silting caused by gale in the channel,the accumulated sudden silting amount was significant.Based on the change in environmental conditions and the silting characteristics,a standard of precaution against and control of sudden silting was put forward,which applied to the channel approaching to the coal harbor of Huanghua port during the operation maintenance period,served as a reference for the silting depth of the channel,as well as the guide for the standards of sudden silting prevention for other mealy sand coast channel during the operation maintenance period.
mealy sand coastport channelstandard of precaution against and control of sudden siltingchannel operation maintenancemulti-frequency sudden silting
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