基于COD理论的岩石蠕变加速判别法探究

doi:10.13722/j.cnki.jrme.2017.1189

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摘要

基于弹塑性断裂力学理论，针对均匀岩石，假设裂纹均匀分布，建立理想裂纹单元体。结合断裂力学R–曲线理论和裂纹张开位移COD理论，提出岩石蠕变断裂过程的R–曲线理论。该曲线能合理解释岩石蠕变断裂全过程，并能有效获得蠕变状态变化的关键值；根据曲线特征，建立预测加速蠕变的控制方程；结合改进的岩石蠕变西原模型建立了新的岩石蠕变本构模型，可以很好地预测岩石加速蠕变发生过程，并用岩石蠕变试验验证预测方法的准确性，为深入研究脆性岩石蠕变断裂过程提供了理论依据。

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	沈才华1
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	张兵1

关键词 ：岩石力学；断裂力学；R&ndash, 曲线；COD理论；蠕变；本构方程

Abstract：Based on fracture mechanics theory，assuming that the crack is evenly distributed in the homogeneous rock，an ideal crack element is established. The R-curve theory of rock creep fracture process is put forward based on the R-curve theory of fracture mechanics and the crack opening displacement(COD) theory. By using this curve，the whole process of rock creep fracture can be reasonably revealed and the key parameters used to describe the status change of rock creep process are obtained. According to the characteristics of this curve，the control equation for predicting the accelerating creep of rock is established. Combined with the improved Nishihara creep model，A new rock creep model is established，which can accurately predict the accelerated creep process of rock and verify the accuracy of the prediction method with rock creep test. The theoretical basis for the intensive study of rock creep also provided by this model.

Key words： rock mechanics fracture mechanics R-curve the COD theory creep constitutive equations

引用本文:

沈才华1，2，王浩越1，王媛1，2，张兵1. 基于COD理论的岩石蠕变加速判别法探究[J]. 岩石力学与工程学报, 2017, 36(S2): 3752-3759.
SHEN Caihua1，2，WANG Haoyue1，WANG Yuan1，2，ZHANG Bing1. Study on creep acceleration discrimination method based on COD theory. , 2017, 36(S2): 3752-3759.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2017.1189 或 https://rockmech.whrsm.ac.cn/CN/Y2017/V36/IS2/3752

[1]	陈宗基. 地下巷道长期稳定性的力学问题[J]. 岩石力学与工程学报，1982，1(1)：1-20.(CHEN Zongji. The mechanical problems for the long-termstability of underground galleries[J]. Chinese Journal of Rock Mechanics and Engineering，1982，1(1)：1-20.(in Chinese))
[2]	张平，贺若兰，李夕兵，等.深部岩石渐进破损本构模型及其应用[J].工程力学，2007，24(12)：146-152.(ZHANG Ping，HERuolan，LI Xibing，et al.Research on progressive damage constitutive model and its application to deep rock[J]. Engineering Mechanics，2007，24(12)：146-152.(in Chinese))
[3]	张盛，王启智.用变裂缝单一尺寸试样确定大理岩的断裂韧度[J]. 工程力学，2007，24(6)：31-35.(ZHANG Sheng，WANG Qizhi. Determination of marble fracture toughness by using variable-crack one-size specimens[J]. Engineering Mechanics，2007，24(6)：31-35.(in Chinese))
[4]	邓广哲，朱维申. 蠕变裂隙扩展与岩石长时强度效应实验研究[J].实验力学，2002，17(2)：177-183.(DENG Guangzhe，ZHU Weishen.An experimentresearch on the crackpropagation in rockmass[J]. Journal of Experimental Mechanics，2002，17(2)：177-183.(in Chinese))
[5]	ZHUH，YE B，CAI Y，et al. An elastic-viscoplastic model for soft rock around tunnels considering overconsolidation and structure effects[J]. Computers and Geotechnics，2013，50：6-16.
[6]	SHARIFZADEH M，TARIFARD A，MORIDI M A. Time-dependent behavior of tunnel lining in weak rock mass based on displacement back analysis method[J]. Tunneling and Underground Space Technology，2013，38：348-356.
[7]	陈亮，陈寿根，张恒，等. 基于分数阶微积分的非线性黏弹塑性蠕变模型[J]. 四川大学学报：工程科学版，2013，45(3)：7-11.(CHEN Liang，CHEN Shougen，ZHANG Heng，et al. A nonlinear viscoelastic-plastic creep model based on fractional calculus[J]. Journal of Sichuan University：Engineering Science，2003，45(3)：7-11.(in Chinese))
[8]	高赛红，曹平，汪胜莲，等. 改进的岩石非线性黏弹塑性蠕变模型及其硬化黏滞系数的修正[J]. 煤炭学报，2012，37(6)：936-943.(GAO Saihong，CAO Ping，WANG Shenglian，et al. Improved nonlinear viscoelastic-plastic rheological model of rock and its correction of hardening coefficient of viscosity[J]. Journal of China Coal Society，2012，37(6)：936-943.(in Chinese))
[9]	MOGHADAM S N，MIZABOZORG H，NOORZAD A，et al. Creep and dilatancy behavior of rock salt around underground caverns[J]. Advanced Materials Research，2013，629：418-422.
[10]	DEBERNARDI D，BARLA G. New viscoplastic model for design analysis of tunnels in squeezing conditions[J]. Rock Mechanics and Rock Engineering，2009，42(2)：259-288.
[11]	袁小平，刘红岩，王志乔. 压缩载荷作用下岩石的细观损伤和塑性研究[J]. 计算力学学报，2013，30(1)：149-155.(YUAN Xiaoping，LIU Hongyan，WANG Zhiqiao. Crack-mechanics damage and plasticity for rock-like materials under compressive loading[J]. Chinese Journal of Computational Mechanics，2013，30(1)：149-155.(in Chinese))
[12]	陈有亮. 岩石蠕变断裂特性的试验研究[J]. 力学学报，2003，35(4)：480-484.(CHEN Youliang. The experimental study on creep fracture of rock[J]. Acta Mechanics Sinica，2003，35(4)：480-484.(in Chinese))
[13]	王学滨.基于能量原理的岩样单轴压缩剪切破坏失稳判据[J].工程力学，2007，24(1)：153-156.(WANG Xuebin. Unstable criterion of rock specimen subjected to shear failure in uniaxial compression based on energy principle[J]. Engineering Mechanics，2007，24(1)：153-156.(in Chinese))
[1]	杨圣奇，徐卫亚，苏承东，等.大理岩三轴压缩变形破坏与能量特征研究[J].工程力学，2007，24(1)：136-142.(YANG Shengqi，XU Weiya，SU Chengdong. Study on the deformation failure and energy properties of marble specimen under triaxial compression[J]. Engineering Mechanics，2007，24(1)：136-142.(in Chinese))
[2]	STERPI D，GIODA G. Visco-plastic behavior around advancing tunnels in squeezing rock[J]. Rock Mechanics and Rock Engineering，2009，42(2)：319-339.
[3]	郑颖人，沈珠江，龚晓南. 广义塑性力学一岩土塑性力学基本原理[M].北京：中国建筑工业出版社，2002：18-26.(ZHENG Yingren，SHEN Zhujiang，GONG Xiaonan. Generalized plastic mechanics-the basic principle of geotechnical plastic mechanics[M]. Beijing：China Architecture and Building Press，2002：18-26.(in Chinese))
[4]	EWALDSH L，WANHILL R J H. Fracture mechanics arnold edition[M]. London，UK：[s. n.]，1984：12-19.
[5]	ZHOU H W，WANG C P，HAN B B，et al. A creep constitutive model for salt rock based on fractional derivatives[J]. International Journal of Rock Mechanics and Mining Sciences，2011，48(1)：116-121.
[6]	JIANG QH，QI Y，WANG Z，et al. An extended Nishihara model for the description of three stages of sandstone creep[J]. Geophysical JournalInternational，2013，193(2)：841-854.
[7]	QI YJ，JIANG QH，WANG ZJ.3D creep constitutive equation of modified nishihara model and its parameters identification[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(2)：347-355.
[8]	LI D W， FAN J H， WANG R H. Research on visco-elastic-plastic creep model of artificially frozen soil under high confining pressures[J]. Cold Regions Science and Technology，2011，65(2)： 219-225.
[9]	YAN Y，WANG SJ，WANG EZ. Creep equation of variable parameters based on Nishihara model[J]. Rock and Soil Mechanics，2010，31(10)：3025-3035.
[10]	NARA Y，YAMANAKA H，OE Y，et al. Influence of temperature and water on subcritical crack growth parameters and long-term strength for igneous rocks[J]. Geophysical Journal International，2013，193(1)：47-60.
[11]	FREITAS T M B，POTTS D M，ZDRAVKOVIC L. Implications of the definition of theΦfunction in elastic-viscoplastic models[J]. Géotechnique，2012，62(7)：643-648.
[12]	Orowan E. Symposium on internal stresses in metals and alloys[J]. Institute ofMetals，London，1948，164(6)：420-425 .
[13]	KRAFFT J M，SULLIVAN A M，BOYLE R W. Effect of dimensions on fast fracture instability of notched sheets[C]//Proceedings of the Crack Propagation Symposium.[S. l.]：[s. n.]，1961：8-26.
[1]	GROSS D，SEELIG T. Fracture mechanics：with an introduction to micromechanics[M]. [S. l.]：Springer，2011：22-38.
[2]	BURDEKIN F M，STONE D E W. The crack opening displacement approach to fracture mechanics in yielding materials[J]. The Journal of Strain Analysis for Engineering Design，1966，1(2)：145-153.
[3]	WELLS A A. Unstable crack propagation in metals： cleavage and fast fracture[C]//Proceedings of the crack propagation symposium.[S. l.]：[s. n.]，1961：820-830.
[4]	赵宝云. 岩石拉压蠕变特性研究及其在地下大空间洞室施工控制中的应用[博士学位论文][D]. 重庆：重庆大学，2011.(ZHAO Baoyun. Study on the rock creep behaviors andits applications in construction control of underground large space cavern[Ph. D. Thesis][D]. Chongqing：College of Civil Engineering，Chongqing University，2011.(in Chinese))
[5]	薛凯喜，赵宝云，刘东燕，等. 岩石非线性拉，压蠕变模型及其参数识别[J]. 煤炭学报，2011，36(9)：1440-1444.(XUE Kaixi，ZHAO Baoyun，LIU Dongyan，et al. Nonlinear creep model of rock in tensile or compressive stress and its parameter identification[J]. Journal of China Coal Society，2011，36(9)：1440-1444.(in Chinese))
[6]	赵宝云，刘东燕，朱可善，等. 重庆红砂岩单轴直接拉伸蠕变特性试验研究[J]. 岩石力学与工程学报，2010，30(6)：3960-3965.(ZHAO Baoyun，LIU Dongyan，ZHU Keshan，et al. Experimental research on creep characteristics of Chongqing red sandstone under direct tension[J]. Chinese Journal of Rock Mechanics and Engineering，2010，30(6)：3960-3965.(in Chines))
[7]	陈有亮，孙钧. 岩石的流变断裂特性[J]. 岩石力学与工程学报，1996，15(4)：323-327.(CHEN Youliang，SUN Jun. Creep fracture of rock[J]. Chinese Journal of Rock Mechanics and Engineering，1996，15(4)：323-327.(in Chinese))
[8]	CHEN YL，SUN J. A criterion for crack initiation and propagation in intact rocks under creep condition[J]. Journal of Coal Science andEngineering(China)，2004，9(2)：1-4.