饱和橡胶砂抗剪强度和动变形特性试验研究
Research on the Test of Shear Strength and Dynamic Deformation Characteristic of Saturated Rubber Sand
王壮海 1甘晓洁 1吴栋桥 1周恩全 2左熹 3王琼2
作者信息
- 1. 海南省水利水电勘测设计研究院有限公司,海南 海口 570203
- 2. 江苏大学 土木工程与力学学院,江苏 镇江 212013
- 3. 金陵科技学院 建筑工程学院,江苏 南京 210000
- 折叠
摘要
将废旧轮胎作为道路工程填料是一种有效的处理废旧轮胎的措施.为了研究废旧轮胎橡胶颗粒与砂混合土在道路工程中的应用潜力,文章以橡胶砂为研究对象,通过直接剪切试验和动三轴试验讨论橡胶颗粒含量对饱和橡胶砂的抗剪强度及动变形特性的影响.研究结果表明,饱和橡胶砂的抗剪强度、黏聚力和内摩擦角均随着橡胶含量的增加而增大;饱和橡胶砂的最大动剪模量值随橡胶颗粒含量的增大而减小;橡胶颗粒含量增大时,橡胶砂动模量比衰减变慢.研究结果可为橡胶砂的工程应用提供借鉴.
Abstract
Using waste tires as road engineering filler is an effective measure to deal with waste tires.In order to study the application potential of waste tire rubber particles and sand mixed soil in road engineering,this paper takes rubber sand as the research object,and discusses the influence of rubber particle content on the shear strength and dynamic deformation characteristics of saturated rubber sand through direct shear test and dynamic triaxial test.The results show that the shear strength,cohesion and internal friction angle of saturated rubber sand increase with the increase of rubber content;the maximum dynamic shear modulus of saturated rubber sand decreases with the increase of rubber particle content;when the content of rubber particles increases,the attenuation of dynamic modulus ratio of rubber sand becomes slower.The research results can provide reference for the engineering application of rubber sand.
关键词
橡胶砂/直接剪切试验/动三轴试验/抗剪强度/动剪切模量Key words
rubber sand/direct shear test/dynamic triaxial test/shear strength/dynamic shear modulus引用本文复制引用
出版年
2024
NETL
NSTL
万方数据