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一、概况渠道防渗,提高水的利用率是水利工程挖潜节流和建设稳产高产农田的一项重要措施。二干二分渠在衬砌前,渠道输水效率不高,沿渠塌坡严重,杂草丛生,影响工程效益的发挥。为了充分利用水资源,提高水的利用率,促进农业生产,根据灌区的实际情况,一九七九年采用水泥土与予制混凝土板进行衬砌试验,应用基本成功。二千二分渠全长九公里,大部分属填方渠道,土壤为粉质粘土。正常引用流量1.2立米/
I. Overview Channel seepage control to improve water utilization is to tap the potential of water conservancy projects and building a stable and high yielding farmland is an important measure. Second dry two sub-canal in front of the lining, the channel water is not efficient, serious slope collapse along the canal, overgrown with weeds, affecting the performance of the project. In order to make full use of water resources, improve water utilization and promote agricultural production, according to the actual situation in the irrigation area, in 1979, cement and precast concrete slabs were used for lining test, and the application was basically successful. 2,292 kilometers of full length of nine kilometers, most of the filling channels, the soil is silty clay. Normal reference traffic 1.2 m /