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对于渍害低产地区来说,降低并控制地下水位,有利于改善土壤环境,使水、气、热状况得到协调,这是农田稳产高产的关键问题。为了降低农田地下排水工程的成本,开展农田地下排水新管材,研究不同排水材料的排水能力已刻不容缓。笔者就双螺纹塑料管,粉煤灰水泥二灰土管、无纺布内裹弹簧圈排水管的排水能力进行模拟试验,并就其排水能力和造价进行简要评估。
For low-pollution and low-producing areas, reducing and controlling the groundwater level will help improve the soil environment and make the water, gas, and heat conditions coordinated. This is a key issue for farmland for stable and high yield. In order to reduce the cost of farmland underground drainage projects, it is imperative to develop new underground drainage pipes and study the drainage capacity of different drainage materials. The author simulates the drainage capacity of a double-threaded plastic pipe, fly ash-cement-cement-lime soil pipe, and non-woven fabric wrapped with a coiled drain pipe, and performs a brief evaluation of its drainage capacity and cost.