钦州港西航道拦门沙开挖回淤研究

采用实测资料分析与公式计算相结合的方法,对钦州港西航道拦门沙开挖后的回淤进行了研究,研究结果表明,拦门沙较为稳定,外域无沙源,影响挖槽回淤的主要因素是滩地风浪掀沙。由于滩地为中、细沙组成,大风浪出现机遇较少,因而年均回淤量不大,航道稳定性良好。

Study on the Silt after Excavation of West -Channel Sand Bar of Qinzhou Harbor

Based on measured data analysis and formula calculation, silt after excavation of west ?channel sand bar of Qinzhon Harbor is studied. It's shown from the study that silt is mainly caused by wind wave lifting sand in shoal ; the sand bar is relatively stable and there is no other sand source in the open sea The shoal is composed of medium and fine sands and rough sea seldom appears, so the channel keeps good stability with less annual average silt amount.