利用各种类型挖泥船进行疏浚工程,必须对土质进行分析。在以往施工中,由于对土质缺乏正确认识,给挖泥船施工造成困难,效率甚低,施工期拖长或导致工程失败。例如我们在某电厂长江中的引水渠基建工程中,由于对土质没有分析,利用1.5立方米抓斗挖泥船挖取紧密细砂,效率极低,使工 Dredging using various types of dredging projects, the soil must be analyzed. In the past construction, due to the lack of a correct understanding of soil quality, dredger construction caused difficulties, inefficient, prolonged construction or lead to project failure. For example, in the construction of diversion channels in the Yangtze River of a power plant, because of the lack of analysis of soil quality, the use of 1.5 cubic meters grab dredger to dig up the fine sand is extremely inefficient.