|本期目录/Table of Contents|

[1]李克钢,秦庆词,杨宝威,等.考虑初始宏细观缺陷的裂隙岩体损伤本构模型研究[J].中国安全生产科学技术,2018,14(12):90-96.[doi:10.11731/j.issn.1673-193x.2018.12.014]
 LI Kegang,QIN Qingci,YANG Baowei,et al.Study on constitutive model of fractured rock mass damage considering initial macroscopic and microscopic defects[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(12):90-96.[doi:10.11731/j.issn.1673-193x.2018.12.014]
点击复制

考虑初始宏细观缺陷的裂隙岩体损伤本构模型研究
分享到:

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年12期
页码:
90-96
栏目:
职业安全卫生管理与技术
出版日期:
2018-12-31

文章信息/Info

Title:
Study on constitutive model of fractured rock mass damage considering initial macroscopic and microscopic defects
文章编号:
1673-193X(2018)-12-0090-07
作者:
李克钢秦庆词杨宝威张雪娅郭文王庭
(昆明理工大学 国土资源工程学院,云南 昆明650093)
Author(s):
LI Kegang QIN Qingci YANG Baowei ZHANG Xueya GUO Wen WANG Ting
(Faculty of Land Resources Engineering, Kunming University of Science and Technolgy, Kunming Yunnan 650093, China)
关键词:
裂隙岩体本构模型耦合损伤初始损伤
Keywords:
fractured rock mass constitutive model coupling damage initial damage
分类号:
X936;TU452
DOI:
10.11731/j.issn.1673-193x.2018.12.014
文献标志码:
A
摘要:
针对传统岩石损伤本构模型因对初始状态损伤忽略的假定致使岩石损伤状态表达不足的问题,基于连续损伤力学原理,运用统计损伤学定义了表征含有初始宏细观缺陷的岩体损伤变量,引入表征岩体初始损伤状态的初始损伤系数k,优化了传统损伤本构模型,对建立的损伤演化本构模型和实测数据曲线进行对比分析。研究结果表明:优化后的本构模型对裂隙岩石全应力应变过程拟合精度更高,其损伤演变过程更符合实际,并能反映存在初始损伤的岩石力学特征差异,量化了初始孔隙、裂隙等宏细观损伤在应力环境中的耦合作用,对研究宏细观缺陷岩石损伤场-应力场耦合作用机制具有意义。
Abstract:
Aiming at the problem that the rock damage state is expressed insufficiently due to the assumption of neglecting the initial state damage in the traditional constitutive model of rock damage, based on the principle of continuous damage mechanics, the rock mass damage variable representing the initial macroscopic and microscopic defects was defined by using the statistical damage theory. The initial damage coefficient k representing the initial damage state of rock mass was introduced to optimize the traditional damage constitutive model. At the same time, the established damage evolution constitutive model and the measured data curve were compared and analyzed. The results showed that the optimized constitutive model had higher fitting accuracy to the full stressstrain process of fractured rock, and the damage evolution process was more realistic, which could reflect the difference of rock mechanics characteristics with the initial damage. The coupling effect of macroscopic and microscopic damage in the stress environment was quantified, such as the initial pore, fracture, etc. It is of great significance for studying the coupling effect mechanism of damage field and stress field of rock containing the macroscopic and microscopic defects.

参考文献/References:

[1]陈蕴生,韩信,李宁,等.非贯通裂隙介质单轴受力条件下的损伤本构关系探讨[J].岩石力学与工程学报,2005(S2):5926-5931. CHEN yunsheng, HAN xin, LI ning,et al. Damage constitutive relation of non-penetrating fractured media under uniaxial stress [J]. Journal of Rock Mechanics And Engineering,2005(S2):5926-5931.
[2]赵怡晴,刘红岩,吕淑然,等.基于宏观和细观缺陷耦合的节理岩体损伤本构模型[J].中南大学学报,2015,46(4):1489-1496. ZHAO Yiqing, LIU Hongyan, LU Shuran,et al. Damage constitutive model of jointed rock mass based on coupling of macroscopic and meso-scopic defects[J]. Journal of Central South University, 2015, 46(4): 1489-1496.
[3]袁小清,刘红岩,刘京平.基于宏细观损伤耦合的非贯通裂隙岩体本构模型[J].岩土力学,2015,36(10):2804-2814. YUAN Xiaoqing,LIU Hongyan,LIU Jingping.Constitutive model of non-penetrating fractured rock mass based on macro-mechanical damagecoupling[J].Rockand Soil Mechanics,2015,36(10):2804-2814.
[4]袁小清,刘红岩,刘京平.非贯通裂隙岩体三维复合损伤本构模型[J].岩土工程学报,2016,38(1):91-99. YUAN Xiaoqing,LIU Hongyan,LIU Jingping. Three-dimensional composite damage constitutive model for non-penetrating fractured rock mass[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(1): 91-99.
[5]赵航,李新平,罗忆,等.裂隙岩体中弹性波传播特性试验及宏细观损伤本构模型研究[J].岩土力学,2017,38(10):2939-2948. ZHAO Hang,LI Xinping,LUO Yi,et al. Experimental study of elastic wave propagation characteristics and macro-mechanical damage constitutive model in fractured rock mass[J]. Rock and Soil Mechanics,2017,38(10): 2939-2948.
[6]曹文贵,李翔,刘峰.裂隙化岩体应变软化损伤本构模型探讨[J].岩石力学与工程学报,2007(12):2488-2494. CAO Wengui, LI Xiang, LIU Feng.Study on constitutive model of strain softening damage in fractured rock[J].Chinese Journal of Rock Mechanics and Engineering,2007(12):2488-2494.
[7]乔彤,章光,胡少华,等.脆性岩石微裂纹压密段本构模型研究[J].中国安全生产科学技术,2017,13(10):128-135. QIAO Wei, ZHANG Guang, HU Shaohua, et al. Study on constitutive model of brittle rock microcrack compaction section[J]. Journal of Safety Science and Technology, 2017, 13(10): 128-135.
[8]王宇,李晓,李守定,等.一种确定节理岩体残余强度参数方法的探讨[J].岩石力学与工程学报,2013,32(8):1701-1713. WANG Yu, LI Xiao, LI Shouding, et al. A method to determine the residual strength parameters of jointed rock masses[J]. Chinese Journal of Rock Mechanics and Engineering, 2013,32(8): 1701-1713 .
[9]彭俊,荣冠,蔡明,等.基于一种脆性指标确定岩石残余强度[J].岩土力学,2015,36(2):403-408. PENG Jun, RONG Guan, CAI Ming, et al. Determination of residual rock strength based on a brittleness index[J]. Rock and Soil Mechanics, 2015, 36(2): 403-408.
[10]李树春,许江,李克钢.基于初始损伤系数修正的岩石损伤统计本构模型[J].四川大学学报,2007(6):41-44. LI Shuchun, Xu Jiang, LI Kegang.A statistical constitutive model of rock damage based on the modified initial damage coefficient[J].Journal of Sichuan U-niversity,2007(6):41-44.
[11]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. YANG Jinhui, ZHANG Guang, QIAO Wei, et al. Mechanical model and verification of rock damage under thermal-water-force coupling[J]. Journal of Safety Science and Technology, 2017, 13(4): 87-93.
[12]吴政,张承娟.单向荷载作用下岩石损伤模型及其力学特性研究[J].岩石力学与工程学报,1996(1):55-61. WU Zheng,ZHANG Chengjuan.Study on rock damage model and mechanical properties under uniaxial loading[J].Chinese Journal of Rock Mechanics and Engineering,1996(1):55-61.
[13]梁正召.三维条件下的岩石破裂过程分析及其数值试验方法研究[D].沈阳:东北大学,2005.
[14]李心睿,徐清,谢红强,等.静动载耦合作用下裂隙岩石损伤本构及演化特征[J].岩石力学与工程学报,2015,34(S1):3029-3036. LI Xinrui,XU Qing, XIE Hongqiang,et al. Damage constitutive and evolution characteristics of fractured rock under static and dynamicloading coupling[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(S1): 3029-3036.
[15]孙卫军,周维垣.裂隙岩体弹塑性-损伤本构模型[J].岩石力学与工程学报,1990(2):108-119. SUN Weijun,ZHOU Weibiao.Elastoplastic-damage constitutive model of fractured rock masses[J].Chinese Journal of Rock Mechanics and Engineering,1990(2): 108-119.
[16]刘红岩,吕淑然,丹增卓玛,等.节理岩体宏微观损伤耦合的三维本构模型研究[J].水利与建筑工程学报,2013,11(3):85-88. LIU Hongyan,LU Shuran,DANZENG Zhuoma,et al. Study on 3-D constitutive model for jointed rock mass by coupling macroscopic and microscopic damage[J].Journal of Water Resources and Architectural Engineering,2013,11(3): 85-88.
[17]刘红岩,吕淑然,邢闯锋,等.宏微观缺陷对岩体力学特性影响规律试验研究[J].自然灾害学报,2013,22(5):134-139. LIU Hongyan,LU Shuran,XING Yifeng,et al. Experimental study on the effect of macro and micro defects on mechanical properties of rock mass[J]. Journal of Natural Disasters,2013,22(5): 134-139.
[18]杨永杰,王德超,郭明福,等.基于三轴压缩声发射试验的岩石损伤特征研究[J].岩石力学与工程学报,2014,33(1):98-104. YANG Yongjie,WANG Dechao,GUO Mingfu,et al.Study on rock damage characteristics based on triaxial compression acoustic emission test[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(1):98-104
[19]曹文贵,赵明华,刘成学.基于统计损伤理论的莫尔-库仑岩石强度判据修正方法之研究[J].岩石力学与工程学报,2005(14):2403-2408. CAO Wengui,ZHAO Minghua,LIU Chengxue.Research on correction method of mohrcoulomb rock strength criterion based on statistical damage theory[J].Chinese Journal of Rock Mechanics and Engineering,2005(14):2403-2408.

相似文献/References:

[1]翟盛锐.考虑孔隙瓦斯劣化作用的煤岩损伤本构模型[J].中国安全生产科学技术,2014,10(2):16.[doi:10.11731/j.issn.1673-193x.2014.02.003]
 ZHAI Sheng rui.Constitutive model of coal or rock damage related to pore gas degradation[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(12):16.[doi:10.11731/j.issn.1673-193x.2014.02.003]
[2]刘诗杰,翟盛锐.基于H-K体的矿柱流变顶板破坏分析[J].中国安全生产科学技术,2015,11(6):25.[doi:10.11731/j.issn.1673-193x.2015.06.004]
 LIU Shi-jie,ZHAI Sheng-rui.Study on roof failure by rheological property of pillars based on H-K body[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(12):25.[doi:10.11731/j.issn.1673-193x.2015.06.004]
[3]王国荣,伍伟,李明,等.基于正交法X形密封圈力学性能研究[J].中国安全生产科学技术,2017,13(3):144.[doi:10.11731/j.issn.1673-193x.2017.03.023]
 WANG Guorong,WU Wei,LI Ming,et al.Study on mechanical properties of X-shape sealing ring based on orthogonal method[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(12):144.[doi:10.11731/j.issn.1673-193x.2017.03.023]
[4]乔彤,章光,胡少华,等.脆性岩石微裂纹压密段本构模型研究[J].中国安全生产科学技术,2017,13(10):128.[doi:10.11731/j.issn.1673-193x.2017.10.022]
 QIAO Tong,ZHANG Guang,HU Shaohua,et al.Research on constitutive model of microcrack compaction section in brittle rock[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(12):128.[doi:10.11731/j.issn.1673-193x.2017.10.022]

备注/Memo

备注/Memo:
收稿日期: 2018-09-16
基金项目: 国家自然科学基金项目(41672303)
作者简介: 李克钢,博士,教授,主要研究方向为岩石力学、工程岩体稳定性等。
通信作者: 秦庆词,硕士研究生,主要研究方向为矿山岩石力学。
更新日期/Last Update: 2019-01-03