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[1]杨金辉,章光,乔彤,等.热-水-力耦合作用下岩石损伤力学模型与验证[J].中国安全生产科学技术,2017,13(4):87-93.[doi:10.11731/j.issn.1673-193x.2017.04.015]
　YANG Jinhui,ZHANG Guang,QIAO Tong,et al.Establishment and verification of rock damage mechanics model under the coupled thermo-hydro-mechanical effect[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(4):87-93.[doi:10.11731/j.issn.1673-193x.2017.04.015]
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热-水-力耦合作用下岩石损伤力学模型与验证
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
13
期数:
2017年4期
页码:
87-93
栏目:
现代职业安全卫生管理与技术
出版日期:
2017-04-30

文章信息/Info

Title:
Establishment and verification of rock damage mechanics model under the coupled thermo-hydro-mechanical effect
文章编号:
1673-193X(2017)-04-0087-07
作者:
杨金辉1; 章光1; 乔彤1; 胡少华1; 2
1. 武汉理工大学 资源与环境工程学院，湖北 武汉 430070；2. 武汉大学 水资源与水电工程科学国家重点实验室，湖北 武汉 430072
Author(s):
YANG Jinhui1;  ZHANG Guang1;  QIAO Tong1;  HU Shaohua1; 2
1. School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan Hubei 430070, China;2. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan Hubei 430072, China
关键词:
热-水-力耦合; 损伤力学模型; 力学特性; 损伤演化
Keywords:
coupled thermo-hydro-mechanical;  damage mechanics model;  mechanical properties;  damage evolution
分类号:
TU45
DOI:
10.11731/j.issn.1673-193x.2017.04.015
文献标志码:
A
摘要:
为了探讨高温、高孔隙水压、高围压对岩石损伤破坏的影响，基于损伤力学基本理论，并结合应变等价性原理，建立热-水-力耦合作用下的损伤力学模型，构建表征岩石损伤演化的表达式，通过水-力耦合作用下热损伤花岗岩室内试验验证了该模型的合理性，并根据室内试验确定了模型参数。试验结果表明：提出的模型能较好地反映热-水-力耦合作用下岩石应力-应变过程，且能表征上述作用下岩石损伤演化规律;高温损伤会导致岩石由脆性逐渐向延性转变，而孔隙水压会进一步加剧岩石损伤演化。
Abstract:
In order to study the influence of high temperature, high pore water pressure and high confining pressure on the rock damage and failure, a damage mechanics model under the coupled thermo-hydro-mechanical effect was established based on the basic theory of damage mechanics and combined with the strain equivalence principle, then an expression representing the rock damage evolution was constructed. The correctness of the mode was verified through the laboratory tests on thermal damage of granite under coupled hydro-mechanical effect, and the parameters of the model were determined according to the laboratory tests. The results showed that the proposed model can reflect the stress-strain process of rock under the coupled thermo-hydro-mechanical effect better, and it can characterize the rock damage evolution also. The rock will transform from brittleness to ductility caused by the high temperature damage, and the pore water pressure will further exacerbate the damage evolution of rock.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金青年基金项目(51609184)；中国博士后科学基金项目(2015M580672)；金属矿山安全与健康国家重点实验室开放基金项目（2016-JSKSSYS-01）
更新日期/Last Update: 2017-05-11