Permanent Deformation Behaviour of Granular Materials
Permanent Deformation Behaviour of Granular Materials
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DOI：
10.1080/14680629.2005.9689998
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发表时间：
2005-01
影响因子：
3.7
通讯作者：
S. Werkmeister;A. Dawson;F. Wellner
中科院分区：
文献类型：
--
作者：
S. Werkmeister;A. Dawson;F. Wellner
本文介绍了安定概念的公认理解。给出了在不同应力水平下对碎石骨料进行多次重复加载三轴试验的结果。所产生的永久变形的发展，积累与重复加载描绘和比较的类型的响应通常描述的安定的方法。结果表明，现有的安定方法可以代表一些，但不是全部，所观察到的响应。因此，修改后的一组可能的响应定义在安定方面和一些解释的差异，从传统的方法。该描述方法可为无粘结路面基层工程提供一种强有力的材料评价和路面设计工具。从所描述的数据导出设计图表，以便说明可能的设计方法。
ABSTRACT The paper describes the accepted understanding of the shakedown concept. The results of several repeated load triaxial tests performed on crushed rock aggregates at different stress levels for a large number of repetitions of loading are given. The development of the resulting permanent deformation which accumulates with the repeated loading is depicted and compared with the types of responses usually described by the shakedown approach. It is shown that the existing shakedown approach can represent some, but not all, of the observed responses. Thus a modified set of possible responses is defined in shakedown terms and some explanation of the differences from the conventional approach are given. It is concluded that the method of description could give a powerful material assessment and pavement design tool for the engineering of unbound pavement bases. A design chart is derived from the data described, so as to illustrate a possible design approach.