引言混凝土 U 型渠道因比矩形、梯形等具有更多的优点而被广泛应用。但是,手工操怍现浇U 型渠道普遍存在着施工复杂、造型困难、质量较难控制等问题。目前各地虽已研制了各种混凝土 U 型渠道衬砌机,在一定程度上解决了上述问题,但仍易受气候、地形和地质条件、地下水位、灌溉放水、能源和交通等限制,给混凝土 U 型现浇渠道的推广带来影响。预制混凝土 U 型槽的应用,虽然体现了预制构件拼装衬砌的优点,使之少受天气、地下水位、地 Introduction Concrete U-shaped channels are widely used because of their advantages over rectangular and trapezoidal shapes. However, the manual operation of cast-in-place U-shaped channels generally presents problems of complicated construction, difficult shape and difficult quality control. At present, various concrete U-shaped channel lining machines have been developed in all parts of the country, which to some extent solve the above problems, but are still susceptible to the constraints of climate, topography and geological conditions, groundwater level, irrigation and drainage, energy and traffic. Type cast-in-place channels to promote the impact. The application of prefabricated concrete U-shaped groove, although embodies the advantages of assembled prefabricated components to make it less affected by the weather, water table, ground