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自劲松,险峰、航浚1号耙吸式挖泥船相继建成后,东海船厂于1974年开始对耙头进行了大量模型试验研究工作。试验是在第六机械工业部第七设计院八所三室试验室内进行的,共作了8种基本耙头模型及由此而衍生的63个模型方案的248次试验,得到了一种挖泥效率较其他各型耙头为高的新耙头-DB耙头。继而在长江航道局主持下,有东
Since Jinsong, Xianfeng, Hangjun 1 trailing suction dredger have been completed, the East China Sea Shipyard in 1974 began a lot of drag on the model test research. The experiment was carried out in eight three-chamber laboratories of the Seventh Design Institute of the Sixth Ministry of Machinery Industry. A total of eight kinds of basic drag head models and the resulting 248 model tests of the 248 models were obtained. Efficiency than other types of drag head for the new drag head - DB drag head. Then under the auspices of the Yangtze River Waterway Bureau, there East