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随着工农业生产发展和人口增长,耕地越来越宝贵。近十年来国内外农田逐步推广暗管排水。暗管和明沟排水相比,施工土方工程量较小,土地利用率高,地面建筑物少,有利于水土保持和水资源利用,可根据土壤渗透率的不同分别设计地下排水工程,以利交通和农业机械化作业。目前,暗管排水防渍已取得了大量的试验成果和经验。
With the development of industrial and agricultural production and population growth, cultivated land is becoming more and more valuable. Over the past decade farmland gradually promote underground drainage. Compared with the drainage of open ditches, the amount of construction earthworks is small, the land utilization rate is high, and the number of ground structures is small, which is good for soil and water conservation and water resource utilization. The underground drainage works can be designed according to different soil permeability to facilitate traffic And agricultural mechanization operations. Currently, a lot of experimental results and experience have been achieved in the prevention and control of underground pipe drains.