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1992年6月16日,由浙江省义乌市水电局和佛堂镇水管站共同完成的“混凝土U形渠槽预制新工艺及其配套机械的研究”通过了技术鉴定,鉴定委员会由省内外9位农田水利与施工机械专家组成。专家们认为该成果属国内首创,居国内领先水平。这种先在薄钢板上平面浇筑振捣密实,再弯曲成U形渠槽的新工艺,巧妙地利用了混凝土初凝前的可塑性及时弯曲成形,构思新颖、工艺先进。配套机械操作方便,投资省,可预制各种规格的混凝土U形渠槽,具有较大的灵活性和适用性,是农田水利工程中较理想的小型施工机械。与现浇混凝土U形渠槽相比,明
June 16, 1992, by the Zhejiang Provincial Yiwu Hydropower Station and Fo Tang Town Station jointly completed the “U-shaped concrete trench precast new technology and its supporting machinery,” passed the technical appraisal, accreditation committee from within and outside the province 9 Bit farmland water conservancy and construction machinery experts. Experts believe that the result is a national initiative, ranking the leading domestic level. This first in the flat steel plate pouring compaction, and then bent into a U-shaped trench new technology clever use of concrete pre-setting flexibility and timely bending forming, novel ideas, advanced technology. Supporting machinery easy to operate, investment in the province, can be prefabricated a variety of concrete U-shaped channel, with greater flexibility and applicability, farmland water conservancy project is ideal for small construction machinery. Compared with the cast-in-place U-shaped channel, Ming