地下水泥砂浆渗灌管制管机的研究及应用

地下渗灌是一种节水效果十分显著的节水灌溉技术。目前在国外农田地下渗灌中，管材大多采用塑料管、橡胶管，但造价较高，不适于我国实际。该文介绍了一种以水泥砂浆为制管材料的渗灌制管机械，该机由拖拉机拖动，可在地下一次性完成行走、掏洞、送料、挤压、成型(割缝)、抹光、回填等全部工序。通过对成型后的管道抗内水压及田间承荷能力测试表明，满足设计及安全运行要求。田间考核表明，采用该渗灌技术灌溉的农田，可较传统的大水漫灌节水60％以上。且造价低廉，易于施工，确是一项新的农田节水灌溉技术。

Research and Application of Pipe-maker of Cement Mortar Pipe for Seep Irrigation Underground

The seep irrigation underground is a kind of water-saving irrigation technique. At present pipes used abroad are most made of plastic or rubber. So the cost is too high to make it popularized in China market. The pipe-maker we devised uses cement mortar as the main material. This machine was pulled by a tractor and can finish all working procedures such as moving, digging, delivering material, extruding, molding, smoothing, backfilling and so on each time underground. The field bearing capacity and hydraulic pressure in pipe test shows that the quality meets the requirements of design and safety. Field evaluation shows that the field under this seep irrigation method can save 60% water more than the one under flooding method. The cost is low and it is easy to construct, so it is really a new water-saving irrigation technique.