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1.施工前的准备1.1施工前应检查图纸、文件等是否齐全,并核对设计是否与灌区地形、水源、作物种植及首部枢纽、位置等相符,发现问题应与设计部门协商,提出合理修改方案。1.2放线;放线的原则为经济合理的布置管线,使系统涉及范围内的每块地都能浇上水。根据实际地从井开始,先定出系统主轴线,各支管线。在分
1. Preparation before construction 1.1 Check the drawings and documents before construction is complete, and check whether the design and irrigation area topography, water, crop planting and the first hub, location, etc., found that the problem should be in consultation with the design department, put forward a reasonable program of changes . 1.2 pay-off; pay-off principle for the economic and rational layout of the pipeline, so that the system involved in each area can be poured into the water. According to the actual start from the well, set the system main axis, each branch line. In points