期刊文献+

Effect of vertical stress rest period on deformation behaviour of unbound granular materials:Experimental and numerical investigations 预览

在线阅读 下载PDF
收藏 分享 导出
摘要 Repeated load triaxial test is used to assess the deformation behaviour of unbound granular materials(UGMs)in flexible road pavements.Repeated load pulse characteristics(i.e.shape,loading period and rest period)are the stress configurations used in the experimental set-up to simulate the passing axle loads.Some researchers and standard testing protocols suggest a rest period of varying durations after a loading phase.A thorough review of existing literature and practises has revealed that there is no agreement about the effect of the rest period of vertical stress pulse on the deformation behaviour of the UGMs.Therefore,the main objective of this study is to investigate the effect of repeated stress rest period on the deformation behaviour of UGMs experimentally.Experiments are conducted,both with and without rest period,using basalt and granite crushed rocks from Victoria,Australia.Furthermore,in order to gain insight into the effect of the rest period,finite element modelling is also developed.Both the experimental and modelling results show that the rest period has a noticeable effect on both resilient and permanent deformation behaviours of UGMs.It is,therefore,recommended to take extra precautions while adopting a particular standard testing protocol and to supplement the results by additional tests with different loading configurations.
机构地区 School of Engineering
出处 《岩石力学与岩土工程学报:英文版》 CSCD 2019年第1期172-180,共9页 Journal of Rock Mechanics and Geotechnical Engineering
分类号 O [理学]
作者简介 Corresponding author:A.Alnedawi.E-mail address:amaln@deakin.edu.au,Ali Alnedawi obtained his BSc and MSc degrees in Highway and Transportation Engineering from Al-Mustansiriya University,Iraq,in 2005 and 2012,respectively.He worked as a Civil Engineer from 2005 to 2015,and he is currently a PhD student at Deakin University,Australia.His research interests include(1)Pavement Engineering and Management;and(2)Geotechnical Engineering
  • 相关文献
投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈