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1972年以来我们在冯家山灌溉管理局的大力支持下,先后在冯家山北干渠(设计流量26米~3/秒,流速1.16米/秒)渠首段进行了沥青衬砌试验,采用土法施工,单层衬砌,厚度6厘米,无垫层及表面封闭层。试验段经多年运行,效果良好。一、试验方案试验段长15米,渠底和边坡共分七个试验方案。渠坡部份是1979年4月铺设的,渠底是1972年施工的。试验方案内容及铺筑块位置见表1及图1。
Since 1972, with the strong support from Fengjiashan Irrigation Administration, we conducted asphalt lining test in the first section of Fengjiashan Northern Main Canal (design flow of 26m ~ 3 / s, flow velocity of 1.16m / s) , Single-layer lining, thickness 6 cm, no cushion and surface sealing layer. Experimental section after years of operation, the effect is good. First, the experimental program Experimental section length of 15 meters, the bottom of the canal and the slope is divided into seven pilot programs. The drainage slope was laid in April 1979 and the canal bottom was constructed in 1972. The contents of the test plan and the locations of paving blocks are shown in Table 1 and Figure 1.