泥质盐岩单轴蠕变寿命研究

许宏发; 马语卿; 杨耀然; 吕亚茹; 耿汉生

doi:10.21656/1000-0887.390230

泥质盐岩单轴蠕变寿命研究

doi: 10.21656/1000-0887.390230

陆军工程大学爆炸冲击防灾减灾国家重点实验室, 南京 210007

基金项目: 江苏省自然科学基金（BK20171399）

详细信息

作者简介:
许宏发（1964—），男，教授，博士，博士生导师（通讯作者. E-mail: xuhongfa1@sina.com）.

中图分类号: TU45
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出版历程
- 收稿日期: 2018-08-31
- 修回日期: 2019-03-21
- 刊出日期: 2019-05-01

Creep Lifetime Evaluation of Muddy Salt Rock

State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing 210007, P.R.China

摘要

摘要: 岩石流变力学的研究中，蠕变寿命是一个重要问题.由于长期蠕变试验资料的缺乏，难以估计蠕变破坏时间.该文进行了泥质盐岩单轴全应力应变压缩试验，并采用陈氏加载法进行了单轴蠕变试验.对蠕变曲线进行了处理，获得了不同应力水平下的蠕变曲线簇，进而得到了等时应力-应变曲线簇.通过拟合分析，建立了等时应力-应变曲线割线模量随时间变化关系模型和等时应力应变曲线的数学模型.对等时应力应变曲线与全应力-应变曲线之间的关系进行了分析，获得了蠕变破坏强度和破坏应变分别与蠕变寿命之间的数学表达式.该文研究成果可以估计泥质盐岩的蠕变寿命、长期强度、长期模量、蠕变破坏线和蠕变终止线，对相关岩石流变寿命的估计具有借鉴意义.
- 泥质盐岩 /
- 蠕变寿命 /
- 时效强度 /
- 时效模量 /
- 蠕变破坏线 /
- 蠕变终止线
Abstract: The creep life is an important problem in the research of rock rheology. For the lack of long-term creep experiment data, the creep rupture time is difficult to estimate. The complete stress-strain uniaxial compression experiment of the muddy salt rock was conducted, and the uniaxial creep test with the Chen method was done. The creep curve cluster under different stress levels was gained through processing of the creep curves, thereby the isochronal stress-strain curve cluster was obtained. Based on the fitting analysis, the variation law for the secant modulus of isochronal stress-strain curves with time and the mathematical model for isochronal stress-strain curves were established. The relationship between isochronal stress-strain curves and the complete stress-strain curve was considered to get the mathematical expressions of the creep failure strength and failure strain with the creep lifetime respectively. The research results can be used to estimate the creep lifetime, the long-term strength, the long-term elastic modulus, the creep failure line and the termination line of muddy salt rock, also make a reference for the estimation of the creep lifetime of similar rocks.
- muddy salt rock /
- creep lifetime /
- long-term strength /
- long-term modulus /
- creep failure line /
- creep termination line

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参考文献(24)

[1]	〖JP2〗GUILLOPE M, POIRIER J P. Dynamic recrystallization during creep of single-crystalline halite: an experimental study[J]. Journal of Geophysical Research Atmospheres,1979,84(10): 5557-5567.
[2]	〖JP2〗SZCZEPANIK S D. Time-dependent acousticemission studies on potash[C]// The 32nd US Symposium on Rock Mechanics(USRMS).Norman, Oklahoma, USA, 1991.
[3]	CARTER N L, HORSEMAN S T, RUSSELL J E. Rheology of rocksalt[J]. Journal of Structural Geology,1993,15(10): 1257-1272.
[4]	YANG C H, DAEMEN J J K, YIN J H. Experimental investigation of creep behavior of salt rock[J]. International Journal of Rock Mechanics and Mining Sciences,1999,36(2): 233-242.
[5]	YANG C H, BEI S, DAEMEN J J K, et al. Analysis of stress relaxation behavior of salt rock[C]//The 37th US Symposium on Rock Mechanics.Vail, Colorado, 1999.
[6]	〖JP2〗杨春和, 陈锋, 曾义金. 盐岩蠕变损伤关系研究[J]. 岩石力学与工程学报, 2002,21(11): 1602-1604.(YANG Chunhe, CHEN Feng, ZENG Yijin. Investigation on creep damage constitutive theory of salt rock[J]. Chinese Journal of Rock Mechanics and Engineering,2002,21(11): 1602-1604.(in Chinese))
[7]	杨春和, 高小平, 吴文. 盐岩时效特性实验研究与理论分析[J]. 辽宁工程技术大学学报, 2004,23(6): 764-766.(YANG Chunhe, GAO Xiaoping, WU Wen. Experiment studies and theoretic analysis of time dependent properties of rock salt[J]. Journal of Liaoning Technical University,2004,23(6): 764-766.(in Chinese))
[8]	LUX K H, HOU Z M. New developments in mechanical safety analysis of repositories in rock salt[C]// Proceeding of the International Conference on Radioactive Waste Disposal.Berlin: Springer Verlag, 2000: 281-286.
[9]	ZHOU H W, WANG C P, HAN B B. A creep constitutive model for salt rock based on fractional derivatives[J]. International Journal of Rock Mechanics & Mining Science,2011,48(1): 116-121.
[10]	王贵君. 一种盐岩流变损伤模型[J]. 岩土力学, 2003,24(S): 81-84.(WANG Guijun. A constitutive creep damage model for saline rocks[J]. Rock and Soil Mechanics,2003,24(S): 81-84.(in Chinese))
[11]	唐明明, 王芝银, 丁国生, 等. 含夹层盐岩蠕变特性试验及其本构关系[J]. 煤炭学报, 2010,35(1): 42-45.(TANG Mingming, WANG Zhiyin, DING Guosheng, et al. Creep property experiment and constitutive relation of salt mudstone interlaye[J]. Journal of China Coal Society,2010,35(1): 42-45.(in Chinese))
[12]	HOU Z M. Mechanical and hydraulic behavior of rock salt in the excavation disturbed zone around underground facilities[J]. International Journal of Rock Mechanics and Mining Sciences,2003,40(5): 725-738.
[13]	RAN L N, ZHANG H B, WANG Z Y. Rock long-term strength parameters determination of a salt cavern gas storage[J]. Applied Mechanics and Materials,2013,353/356: 1685-1688.
[14]	吴斐, 谢和平, 刘建锋, 等. 分数阶黏弹塑性蠕变模型试验研究[J]. 岩石力学与工程学报, 2014,33(5): 964-970.(WU Fei, XIE Heping, LIU Jianfeng, et al. Experimental study of fractional viscoelastic-plastic creep model[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(5): 964-970.(in Chinese))
[15]	胡其志, 冯夏庭, 周辉. 考虑温度损伤的盐岩蠕变本构关系研究[J]. 岩土力学, 2009,30(8): 2245-2248.(HU Qizhi, FENG Xiating, ZHOU Hui. Study of creep model of rock salt with thermal damage considered[J]. Rock and Soil Mechanics,2009,30(8): 2245-2248.(in Chinese))
[16]	王来贵, 李磊, 刘学, 等. 基于岩石长期稳定性的工程寿命预估研究[J]. 中国地质灾害与防治学报, 2010,21(3): 97-100.(WANG Laigui, LI Lei, LIU Xue, et al. Life expectation of an rock engineered slope based on the long-term stability[J]. The Chinese Journal of Geological Hazard and Control,2010,21(3): 97-100.(in Chinese))
[17]	SHIN K, OKUBO S, FUKUI K, et al. Variation in strength and creep life of six Japanese rocks[J]. International Journal of Rock Mechanics and Mining Sciences,2005,42(2): 251-260.
[18]	WANG J X, ZHANG K, LIANG W M, et al. Experimental study on creep life of granite under direct uniaxial tension[J]. Advanced Materials Research,2012,598: 293-298.
[19]	许宏发, 柏准, 齐亮亮, 等. 基于全应力-应变曲线的软岩蠕变寿命估计[J]. 岩土力学, 2018,39(6): 1973-1980.(XU Hongfa, BAI Zhun, QI Liangliang, et al. Creep life estimation of soft rock based on the complete stress-strain curve[J]. Rock and Soil Mechanics,2018,39(6): 1973-1980.(in Chinese))
[20]	MA Linjian, XU Hongfa, TONG Quan, et al. Post-yield plastic frictional parameters of a rock salt using the concept of mobilized strength[J]. Engineering Geology,2014,177: 25-31.
[21]	刘雄. 岩石流变学概论[M]. 北京: 地质出版社, 1994.(LIU Xiong. Introduction to Rock Rheology Mechanics [M]. Beijing: Geological Publishing House, 1994.(in Chinese))
[22]	周德培, 朱本珍, 毛坚强. 流变力学原理及其在岩土工程中的应用[M]. 成都: 西南交通大学出版社, 1995.(ZHOU Depei, ZHU Benzhen, MAO Jianqiang. Principle of Rheological Mechanics and Its Application in Geotechnical Engineerin[M]. Chengdu: Southwest Jiaotong University Press, 1995.(in Chinese))
[23]	GOODMAN R E. Introduction to Rock Mechanics [M]. 2nd ed. New York: John Wiley & Sons, 1989.
[24]	周维垣. 高等岩石力学[M]. 北京：水利电力出版社, 1990.(ZHOU Weiyuan. Advanced Rock Mechanics [M]. Beijing: Water & Power Press, 1990.(in Chinese))