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部标 JT/Z4013-87《用编队系数计算雪橇型分节驳顶推船队阻力的近似方法》(简称编队系数法)于1988年9月1日实施。为有利于标准的贯彻施行,现将本标准作一简介。一、制订标准的意义分节驳顶推船队作为一种新型的先进水运工具,自1974年以来,在我国如雨后春笋般地发展起来。其阻力按国内外已发表的有关资料计算,发现结果彼此偏离较大,故难以评定计算的合理性和可靠性。为此,制订本
Ministry of superscript JT / Z4013-87 “formation coefficient using snow-type section split barge pushing the fleet approximate method” (referred to as the formation factor method) on September 1, 1988 implementation. In order to facilitate the implementation of standards, now this standard as an introduction. First, the significance of the development of the standard section Split barge pushed the fleet as a new type of advanced water transport tools, since 1974, mushroomed in our country developed. The resistance is calculated based on the published data at home and abroad and the results deviate from each other so that it is difficult to evaluate the rationality and reliability of the calculation. To this end, the formulation of this