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幸福灌区属于中型灌区,渠首建筑物破损严重,不能继续使用;渠首枢纽不稳定,过洪水时,上、下游水位差过大,使下游冲刷严重。为尽可能地发挥渠首工程的经济效益、社会效益和生态环境效益,确保灌区可持续发展,为全面奔小康服务,加快渠首枢纽工程的加固步伐是非常必要的。
Happy irrigation area belongs to the medium-sized irrigation area. The structure of the canal head is damaged severely and can not be used continuously. When the water flow reaches the flood control point, the water level difference between the upper and lower reaches is too large, causing the downstream erosion seriously. In order to give full play to the economic, social and eco-environmental benefits of the canal project, it is necessary to ensure the sustainable development of irrigated areas and to serve the overall well-being and to speed up the reinforcement of the canal head project.