介绍了塑料盲沟材料的设计原理、主要形式和特点,选择几种不同截面构造形式的塑料盲沟材料通过室内试验研究了其压缩变形规律以及排水能力随作用水力梯度之间的关系,利用水力学的管流理论进行分析,提出了表征塑料盲沟材料排水性能的通水能力系数指标。在此基础上对塑料盲沟材料的集水能力与排水能力进行分析,并与碎石盲沟的排水能力进行对比,深入地探讨了塑料盲沟材料各方面的排水性能。 The design principles, main forms and characteristics of plastic blind ditch materials are introduced. Several types of plastic blind ditch materials with different cross-sectional configurations are selected to study their compressive deformation laws and the relation between drainage capacity and hydraulic gradient. Mechanics of pipe flow theory analysis, proposed characterization of plastic blind ditch water drainage capacity coefficient index. On this basis, the water collecting ability and drainage capacity of plastic blind ditch material are analyzed, and compared with the drainage capacity of the blind ditch, the drainage performance of the plastic blind ditch material in all aspects is discussed in depth.