农田暗管排水为了阻挡土壤细颗粒泥沙进入排水管内形成淤塞,和在土壤与排水管之间建立一个过渡层以改善排水管周围的透水能力,增加排水管渗水孔的进水量,为此在排水管四周铺设一层以自然级配或人工级配的砂砾石滤料。实践证明,这一方法是保证农田排水管正常有效排水的一个十分重要的措施。但砂砾石滤料常常不能就近获得(如新疆各河流的中下游地区),为了不增加暗管排水工程的投资费用,便要寻求合适的材料为代用品。近十几年来由于柔性波纹塑料排水管的大量使用,纤维材料(包括植物纤维和人造纤维)为代用品在国外被广泛采用。国内在使用纤维材料方面尚缺乏经验,且纤维材料的种类很多,它的透 In order to prevent soil silt from entering the drainage pipe to form silt and to establish a transition layer between the soil and the drainage pipe to improve the water permeability around the drainage pipe and increase the water inflow of the drainage pipe water hole, Drainage around the laying of a natural grading or artificial grading with sand filter. Practice has proved that this method is to ensure the normal drainage of farmland drainage is a very important measure. However, sand and gravel media often can not be obtained nearby (such as the middle and lower reaches of Xinjiang rivers), in order not to increase the cost of underground pipe drainage project, we must find the right material as a substitute. In the past ten years, due to the extensive use of flexible corrugated plastic drains, fiber materials (including plant fibers and man-made fibers) are widely used abroad as substitutes. Domestic use of fiber materials is still inexperienced, and a wide range of fiber materials, it’s through