混凝土U型渠在孝义市小型农田水利工程中的应用

Application of the Concrete U-shaped Canal in the Small-sized Farmland Water Conservacy Project of Xiaoyi City

介绍了孝义市小型农田水利工程中混凝土U型渠的测量及底坡设计、渠道的土方开挖及回填、土模的碾压及回填、混凝土浇筑等施工要点和难点。工程建成后解决了原有土渠的布局不合理、输水效率不高、浪费水资源、日常维护保养难等问题,提高了农田灌溉的效率。

The paper introduces the main and difficult points to construct the concrete U-shaped canal in the shall-sized farmland water conservacy project in Xiaoyi city. It includes following aspects ： canal servey, design of canal base slope, earth excavation and backfill of canal, rolling and backfilling the earth from, placing concrete etc. Completing these works can slove a set of original problems such as unreasonable layout of present existing earth canals, lower water diversion efficiency, wasting water resources, having difficulty to maintain the canal, and can raise the farmland irrigation efficiency.