抓绞联合施工工艺在钦州港东航道扩建工程中的应用

Application of grab dredger and CSD combined construction technology in the expansion project of east waterway of Qinzhou port

针对钦州港东航道扩建工程中耙吸挖泥船施工存在水深不足、施工效率低等问题,采用抓斗船绞吸船联合施工工艺,通过抓斗船疏浚后由泥驳将疏浚土装运至蓄泥坑抛卸,再由绞吸船将其二次吹填上岸。结果表明,该工艺有效规避了水深不足的安全风险,并通过半幅施工半幅通航措施,降低了施工对航道通航的影响,提高了施工效率和经济效益,可为类似工程提供借鉴。

To deal with the problems of shallow water and low efficiency in the construction of the east waterway expansion project of Qinzhou Port by TSHD,the combined construction technology of grab dredger and CSD was adopted.After dredging by grab dredger,the dredging soil was transported by spoil barge to the mud storage pit and then reclaimed by CSD.The results show that the technology can effectively avoid the safety risk of shallow water dredging,reduce the adverse effects to the navigation of waterway,improve the construction efficiency and economic benefits through the measures of half-width waterway construction and half-width waterway navigation,which could be referred for the following similar projects.