灌排系统地下化已在各国成为发展趋势,但单管单用的灌溉或排水系统投资大、成本高,制约了地下灌排系统广泛应用。本试验提出埋设一根地下透水管,使其既起到渗灌作用,也可排地下水,即“一管两用”。本试验从土壤水分运动规律研究了“一管两用”可行性,实验表明“一管”可以达到渗灌与地下排水目的。 Irrigation system has become a trend in various countries, but single-pipe irrigation or drainage system with large investment and high cost has restricted the widespread application of underground irrigation system. The experiment proposed laying a underground permeable pipe, so that it can play the role of seepage irrigation, but also row of groundwater, that is “one pipe dual use ”. In this experiment, the feasibility of “one pipe and two pipes” was studied from the law of soil water movement. Experiments show that “one pipe” can achieve the purpose of seepage irrigation and underground drainage.