[1]张慧梅,彭 川,杨更社,等.冻融损伤岩石的强度准则研究[J].西安科技大学学报,2017,(02):154-158.[doi:10.13800/j.cnki.xakjdxxb.2017.0202]
 ZHANG Hui-mei,PENG Chuan,YANG Geng-she,et al.Study on strength criterion of freezing-thawing damage rock[J].Journal of Xi'an University of Science and Technology,2017,(02):154-158.[doi:10.13800/j.cnki.xakjdxxb.2017.0202]
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冻融损伤岩石的强度准则研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2017年02期
页码:
154-158
栏目:
出版日期:
2017-03-30

文章信息/Info

Title:
Study on strength criterion of freezing-thawing damage rock
文章编号:
1672-9315(2017)02-0154-05
作者:
张慧梅1彭 川1杨更社2叶万军2申艳军2刘 慧2
1.西安科技大学 理学院,陕西 西安 710054; 2.西安科技大学 建筑与土木工程学院,陕西 西安 710054
Author(s):
ZHANG Hui-mei1PENG Chuan1YANG Geng-she2YE Wan-jun2SHEN Yan-jun2LIU Hui2
1.College of Sciences,Xi'an University of Science and Technology,Xi'an 710054,China; 2.College of Architectural and Civil Engineering,Xi'an University of Science and Technology,Xi'an 710054,China
关键词:
冻融损伤 本构模型 模型参数 强度准则
Keywords:
Key words:freezing-thawing damage constitutive model model parameter strength criterion
分类号:
TU 452
DOI:
10.13800/j.cnki.xakjdxxb.2017.0202
文献标志码:
A
摘要:
强度准则在理论研究和工程应用等方面都具有重要意义。将损伤力学和细观统计方法相结合,考虑岩石缺陷的随机性,建立了冻融岩石的损伤本构模型,并推导出模型参数的表达式; 根据模型最大主应力点的极值条件,建立了冻融损伤岩石的强度准则,并通过实验结果验证其合理性。研究表明:文中所建立的冻融损伤岩石强度准则能够表征不同冻融循环次数下的极限应力状态,反映岩石强度莫尔包络线的曲线特征; 模型参数的理论表达式可反映冻融损伤与岩石变形破坏的一般变化规律,增强了模型的普适性,可为寒区岩土工程材料和结构强度研究提供理论基础。
Abstract:
Abstract:Strength criterion has important significance in theoretical research and engineering application.Considering the randomness of rock defects,the damage constitutive model of frozen rock is established and the model parameters are derived.The damage statistical strength criterion of rock is discussed according to the extreme conditions of the maximum principal points of the model,and its validity is verified by experimental results.The results of the study show that:The strength criterion of freezing-thawing damage established in this paper can indicate the relationship between the internal stress and strain parameters under different freeze-thaw cycles,and reflect the characteristics of the rock strength Mohr envelope curve.The theoretical expression of model parameters can reflect the general regularity of freeze thaw damage and rock deformation and failure,which greatly enhance the adaptability of the model,and can provide theoretical basis for the research of cold geotechnical engineering materials and structure strength.

参考文献/References:

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相似文献/References:

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 ZHANG Hui-mei,MENG Xiang-zhen,PENG Chuan,et al.Freeze-thaw damage model and parameters of rock deformation in whole process[J].Journal of Xi'an University of Science and Technology,2018,(02):260.[doi:10.13800/j.cnki.xakjdxxb.2018.0213]
[2]邵宏甫.单轴压缩下粗砂岩热损伤统计本构模型[J].西安科技大学学报,2009,(06):702.
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 MENG Xiang-zhen,ZHANG Hui-mei,KANG Xiao-ge.Damage constitutive model of porous rock under freeze-thaw[J].Journal of Xi'an University of Science and Technology,2019,(02):138.[doi:10.13800/j.cnki.xakjdxxb.2019.0417]

备注/Memo

备注/Memo:
基金项目:国家自然科学基金(11172232,41272340,41302228); 陕西省重点科技创新团队计划(2014KCT-30); 陕西省教育厅专项基金(11JK0542) 通讯作者:张慧梅(1968-),女,山西大同人,教授,博士生导师,E-mail:zhanghuimei68mail@163.com
更新日期/Last Update: 1900-01-01