新型塑料合成沙物理和运动特性试验研究

在泥沙实体模型试验中,模型沙的选用及其物理和运动特性的确定直接关系到泥沙运动及河床变形的相似性和试验成果的精度。多年来采用的各种模型沙存在一些难以克服的缺陷。成功研制成一种物理性质可控制、能批量生产的亲水性树脂基合成模型沙材料(简称PS或EPS),尝试为模型沙研究开辟新途径,也为解决泥沙模型试验选沙难题提供了参考。

Experimental Research on Physical and Kinetic Characteristics of the New Compound Sand Made from Plastic

In a test of the sand physical model, it is very important to select the model sand with appropriate physical and kinetic characteristics, which is directly related with the similarity of the sediment movement and the change of river bed and with the accuracy of the experimental results. All available model sands are not satisfactory in one way or another. In this paper, a kind of hydrophilic resin compound model sand (PS or EPS) is successfully developed, whose physical characteristics can be controlled and which can be produced in bulk. This new hydrophilic resin sand (PS or EPS) can meet various requirements in the model sand selection.