扎瓦尔港外航道泥沙回淤分析

近海航道在使用过程中因潮汐、波浪、水流等因素对泥沙运动的影响会造成航道回淤,从而需要定期维护.而合理的航道布置和边坡设计将减少运营期内维护成本.根据沙特扎瓦尔港港区自然条件、水深测图等资料,分析航道淤积趋势；通过理论分析和数模研究对其产生的原因进行了分析；在此基础上确定了合理的航道浚后边坡,以期降低航道在运营期内维护费用.结合理论数据和一段时间内航道运营后复测数据分析,扎瓦尔港外航道走向和边坡设计是合理的且是被认可的.

Channel sedimentation of new berths at sandy seacoast

During the operation of the inshore channel, the channel sedimentation will happen due to moving of sand material under the effect of tide, wave and current. Thereby, the periodic maintenance upon the channel is required. However, the maintenance cost will be reduced once a reasonable channel layout and slope design is adopted. Based on the natural conditions and water level data of Ras Az Zawr port, Saudi Arabia, we analyze the trend of sedimentation of channel and the reason for it by theoretical analysis and numerical simulation. On that basis, we propose suggestions for the logical channel slope , which will cut down the maintenance cost of navigation channel. Based on the analysis of the mathematic parameter and verification of survey data during a period of operation, we know that the channel layout and slope design of Ras Az Zawr port is reasonable and acceptable.