暗管排水是改良盐碱地和涝洼地的有效措施之一。我国北方有相当数量的盐碱地和涝洼地需要改造。发展暗管排水,由于铺管沟深多在1.8～2.5米左右,所以开沟是一项土方量很大的工程。依靠人工开沟、铺管,不仅效率低,劳动强度大,作业成本高,而且工程质量也难以保证。 Vascular drainage is one of the effective measures to improve saline land and waterlogging depression. There is a considerable amount of saline-alkali land and waterlogged land in north China that needs to be rebuilt. The development of underground pipe drainage, as the shop pipe ditch deep in 1.8 to 2.5 meters, so ditching is a large amount of earthwork. Rely on artificial ditching, pipe laying, not only inefficient, labor-intensive, high operating costs, and the quality of the project is also difficult to guarantee.