苏丹绿地工程大型绞吸船水下泵单泵珊瑚礁疏浚施工

Discussion on Using of Combined Pumping Unit to Dredge Coral Reefs in Green Area in Sudan

介绍了大型绞吸船开挖珊瑚礁时,在排泥管线较短的条件下,水下泵单泵施工的理论计算和实际应用,并与正常施工条件下的双泵施工进行了对比分析。实践证明,在一定条件下,单泵施工不但可以节省油耗,而且可以提高生产效率,是可以推行的一种施工工艺。

The paper describes the theoretical calculations and engineering practice of single submersible pumping unit used to dredge coral reefs when a large cutter suction dredger was employed with short dredge spoil pipelines.Comparisons and analyses are made with the twin-pump units under the normal working conditions.The practice showed that,under certain circumstances,operations of a single pumping unit did not only cut down the fuel consumption but also increase the productivity,proving to be a feasible construction technology that may be popularized.