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渠道防渗措施,近年来逐渐为农场、公社所重视,并已进行了大量的工作:在一些大型的河渠上,採用了水泥混凝土和钢筋混凝土衬砌;石料方便的地区,用片石或卵石干砌和浆砌,都获得良好的效果.但这些防渗工程造价很高,许多灌区的支斗农渠未能普遍採用.现介绍几种国内外广泛採用的防渗工程技术措施如下.1.渠道夯实防渗.自然土壤经夯实后,加强了土壤颗粒间的接触,减少了孔隙,水、土间物理的相互连结作用和抗剪强度都有所增进,抗渗能力增强.这种方法在粘土、壤土地区效果较好.
Channel seepage control measures, in recent years gradually for the farms, communes and the importance of, and has carried out a lot of work: In some large river canals, the use of concrete and reinforced concrete lining; stone convenient area, with dry stone tablet or pebble And masonry, have achieved good results.But these seepage control project cost is very high, many irrigated canals are not widely used.Is now introduced several widely used anti-seepage engineering and technical measures are as follows.1.Channel Tamping seepage.Through compaction of natural soil to strengthen the contact between soil particles, reducing the porosity, water, soil physical interaction and shear strength have increased, impermeability increased.This method in the clay , Loam area is better.