黄骅港外航道整治工程对回淤土可挖性影响分析

黄骅港整治工程前,航道内大风回淤后有大段的强淤难挖段。首先分析了黄骅港整治工程前航道内回淤土难挖段的特点,又以大量实测为依据,分析了黄骅港整治工程后航道内回淤土的各项特性、指标的变化,阐述了黄骅港整治工程对航道回淤土可挖性的影响,分析原因认为:黄骅港整治工程掩护了原有强淤难挖段,改善了被掩护段的颗粒组成,提高了回淤土可挖性,航道淤积重心外移,使疏浚力量重分配,提高了疏浚效率,增加了航道水深。

Influence analysis of regulation projed on properly of siltation soil in Huanghua Port

Before the regulation project in Huanghua Port,there is a long section which is difficult to dredge up in channel because of the siltation after gales.First of all,the characteristic of the section which is difficult to dredge up in channel is analysed,and based on scene actual measurement data,the transformation of speciality and index of siltation soil in channel after the regulation project in Huanghua Port are analyzed,and the effect of regulation project on siltation soil is elaborated and the reason is analyzed,the results show that the original strong silting reach is sheltered,and the grain composition of sheltered reach is improved.Channel siltation barycenter moves so as to reassign dredging project.Then the dredging efficiency and channel depth are increased.