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目前,沙湾县农田水利灌溉渠道主要是砼预制板衬砌渠道和C15砼现浇砼衬砌渠道,及少量近年才开始修建的U型砼预制板衬砌渠道。经实践应用
At present, irrigation and irrigation irrigation channels in Shawan County are mainly precast concrete lining channels and C15 concrete cast-in-situ concrete lining channels, and a small amount of U-shaped concrete precast lining lining channels that have just started to be constructed in recent years. Practical application