岩土工程学报2016,Vol.38Issue(10):1775-1782,8.DOI:10.11779/CJGE201610005
岩石冻融循环试验建议性方案探讨
Proposed scheme forfreeze-thaw cycle tests on rock
摘要
Abstract
The freeze-thaw cycle teston rockis afundamental test in low-temperature rock mechanics field,which mainly involves three indexes:freeze-thaw cycle temperature,timeperiod of thecycle and cycle number.At present,there isn’t a clear reference aboutthe selection of the seindexes from the worldwide experimental procedures or scholars, which brings any huge obstacle to the enactment of the scheme for freeze-thaw cycletests on rock. The methods toconfirm theindexes of this kind of experiment are determined, anda testscheme for freeze-thaw cycle of rock is proposed.Firstly,a comprehensive review of the worldwidefreeze-thaw cycle test schemes is summarizedand the problemsto enact this test scheme are pointed out, and the ideasabout theproposed testschemeisclarified. Then, bydesigningthe indoor rock freeze-thaw cycle tests,the influence of these three indexesonthephysical and mechanical parameters of rock is discussed. According to the results, the proposed test method withdifferent lithologies and porosities is clearly defined. This study will provide a reference for the selectionof freeze-thaw cycleindexes and standard freeze-thaw test methods.关键词
岩石力学/冻融循环试验/温度/时长/循环次数Key words
rock mechanics/freeze-thaw cycle test/temperature/timeperiod/cycle number分类
建筑与水利引用本文复制引用
申艳军,杨更社,荣腾龙,刘慧,吕伍杨..岩石冻融循环试验建议性方案探讨[J].岩土工程学报,2016,38(10):1775-1782,8.基金项目
国家自然科学基金项目(41302228);中国博士后科学基金项目(2013M532070,2014T70931);陕西省重点科技创新团队项目(2014KCT-30);陕西省博士后科学基金项目 ()