Dynamic triaxial tests on liquefaction characteristics of rubber-sand mixture

被引：0
|
作者：
Li B. [1 ,2 ]
Huang M.-S. [2 ]
机构：
[1] Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin University of Technology, Guilin, 541004, Guangxi
[2] Department of Geotechnical Engineering, Tongji University, Shanghai
来源：
| 2017年 / Academia Sinica卷 / 38期
基金：
中国国家自然科学基金;
关键词：
Cyclic triaxial test; Liquefaction resistance; Pore pressure build-up; Tire crumb;
D O I：
10.16285/j.rsm.2017.05.015
中图分类号：
学科分类号：
摘要：
Recycled tire wastes mixed with soils are applicable as lightweight filling material for slopes, sub-bases of pavements and retaining walls to improve the safety of the retaining walls. Under the seismic loadings, e.g., earthquake or traffic loads, the dynamic responses of granulated rubber/soil mixtures, such as the evolution of stress-strain, rule of cumulative pore water pressure, dynamic shear modulus, and liquefaction resistance, are essential in the design of such a system. This paper investigates the dynamic responses, liquefaction resistance mainly, of recycled rubber tire powder through mixtures with different tire powder sizes in saturated condition using cyclic triaxial tests. The results show that the larger tire powder size significantly improved liquefaction resistance of granular materials. Meanwhile, the incorporations of tire powder changes the deformation pattern and the evolution of pore water pressure compared to the pure sand. The attempt is to further explain the evolved dynamic behavior of the mixture. And the results as a supplement enrich the database of dynamic behavior of soil rubber mixture as lightweight filling material in saturated condition. Finally, the results are interpreted from the microscopic view of the point. © 2017, Science Press. All right reserved.
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页码：1343 / 1349
页数：6
相关论文
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