日照港30万吨原油码头港池与航道回淤预测分析

Predictive Analysis of Back Silting in the Basin and Channel of 300,000-ton Crude Oil Handling Terminal in Rizhao Harbor

根据日照港30万吨级原油码头工程的设计要求,在拟建工程海域实测了2个站的大、中、小潮潮位和9条测线的流速、流向及含沙量。利用二维潮汐水流数学模型进行了潮位、流速和流向验证计算,综合研究了调查海区的泥沙运动和海底冲淤演变规律,并预测了冲淤趋势。在此基础上,重点对30万吨原油码头泊位、港池与航道的淤积进行了预测分析。分析结果表明,在正常水动力条件下,该港区内的平均年回淤速率不大,此港区适合建码头。

According to the environmental conditions of the Rizhao Harbor 300,000- ton crude oil handling terminal engineering sea area, the advanced instruments were used to measure the tidal levels at 2 stations during spring tide, medium tide, neap tide, the current speeds, current directions and sediment concentrations along 9 survey lines in the engineering sea area. In this paper, a two-dimensional mathematical model is used to compute and verify the tidal level, current speed and current direction in the area, the sediment movement and sea bed scour and silting regularities in the survey area are studied, the scour and silting trends are predicted, and the predictive analysis of back silting in berth, basin and channel of 300,000-ton crude oil handling terminal is made. It is shown from the analysis results that the annual mean back silting rate in the harbor area under normal hydrodynamic conditions is low, and the harbor area is suitable for constructing an oil handling terminal.