Behavior of Railroad Ballast under Monotonic and Cyclic Loading
Behavior of Railroad Ballast under Monotonic and Cyclic Loading
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DOI：
10.1061/(asce)1090-0241(2008)134:3(316
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发表时间：
2008-03
影响因子：
3.9
通讯作者：
W. Anderson;P. Fair
中科院分区：
文献类型：
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作者：
W. Anderson;P. Fair
铁路道碴机械化维护的一种相对较新的方法（吹石）在道碴和每根枕木之间放置一层单一尺寸的石头，形成两层砾石支撑。为了更好地了解这种大直径排列系列的行为，对单一尺寸和分层样本进行了三轴测试。已经开发出一种在测试过程中量化颗粒破碎的新方法，以及用于解释剪切和破碎对观察到的样本行为的综合影响的概念模型。
A relatively new method for mechanized maintenance of railroad ballast (stoneblowing) puts a layer of single size stone between the ballast and each tie creating a two-layer gravel support. To get a better understanding of the behavior of this arrangement series of large diameter, triaxial tests have been carried out on single size and layered specimens. A new method of quantifying particle breakage during testing has been developed, and a conceptual model used to explain the combined effects of shearing and breakage on observed specimen behavior.