卡西姆港外拦门沙对进港外航道轴线的影响

基于卡西姆港Ahsan航道拦门沙地区1972—2007年的海图及水文资料,探讨该拦门沙的形态演变特征及其对航道轴线的影响。结果表明:Ahsan航道形态与拦门沙在20世纪70年代较为稳定,但90年代随着人为因素的增加和自然演变,东侧边滩不断向西淤涨,Ahsan航道轴线走向也发生相应的变化。近期航道周围的海床冲刷速率增大,航道周围的水深变浅,淤积较严重,给航道维护增加了工作量。

Impact of bar outside Qasim port to approach channel axis

Based on the chart of year 1972 to 2007 and hydrological data of mouth bar around the Karsimu port Ahsan channel,we probe into the mouth bar evolution characteristics and its influence on Ahsan channel.The results show that the Ahsan channel and mouth bar are relatively stable in the 1970 s,but in the 1990 s,with the increase of the human factors,and under the influence of natural conditions,the Ahsan channel axis changed.Recently,the scour rate around channel increased,the water around waterway became shallow,deposition turned more serious and the channel maintenance work increased.