泥驳船水下高精度抛填施工工艺

受施工区域水深较浅等因素限制，部分工程抛泥区禁止超抛，否则应对超过约定高程的抛填土进行二次处理，这对泥驳船的水下抛填高精度控制提出了更高的要求。基于乌克兰南方港航道疏浚工程，采用数学模型对不同工况下不同颗粒的漂移情况进行分析，并对定位、抛填及抛填土的后续处理方式进行改进。结果表明，改进后的施工工艺可有效控制抛泥区抛填施工的质量。

Construction technology of high-precision underwater throwing and filling for mud barge

Due to the limitation of shallow water depth and other factors in the construction area,the final top level of throwing area is prohibited to exceed the required level.Otherwise,the soil exceeded the agreed elevation should be carried out secondary treatment,and it requires higher construction precision to underwater throwing and filling of mud barge.Based on the dredging project in southern channel of Ukraine,we adopt mathematical model to analyze the movement of different particles under different construction conditions,and improve the positioning,throwing and filling and subsequent treatment method of the soil.The results show that the improved construction technology can effectively control the quality of throwing and filling in the construction area.