层间错动带剪切蠕变试验及蠕变模型研究

doi:10.13722/j.cnki.jrme.2020.0881

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Abstract The interlayer shear weakness zone(ISWZ) is a typical weak structural plane which controls the safety and stability of the dam foundation and underground caverns in Baihetan Hydropower Station. It is very important for the long-term stability of engineering surrounding rock mass to study the time-dependent mechanical effects. However，from the existing research results，there is little research on the creep characteristics of ISWZs in Baihetan. In this paper，the creep characteristics of undisturbed ISWZs¢ specimens in the Baihetan engineering area are studied through direct shear creep tests. The experimental results show that the undisturbed specimens of ISWZs present typical creep characteristics. The long-term shear strength of the ISWZs under various normal stresses is determined by isochronous curve cluster method. Finally，based on the element method and the yield surface creep model，a non-stationary viscoelastic-plastic creep model which can describe the instantaneous elasticity，stable creep and accelerated creep characteristics of ISWZs is established. The fitting results show that this creep model can well reflect the creep characteristics of ISWZs. The research results can provide a reference for further revealing the time-dependent law of ISWZs.

Key words： rock mechanics interlayer shear weakness zones direct shear creep experiments creep characteristics long-term strength non-stationary viscoelastic-plastic constitutive model

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	Articles by authors
	HAN Gang1
	2
	HOU Jing3
	ZHOU Hui1
	2
	ZHANG Chuanqing1
	2
	GAO Yang1
	2
	YANG Liu1
	2
	CHEN Pingzhi3

Cite this article:

HAN Gang1,2,HOU Jing3, et al. Shear creep experimental study on constitutive model of interlayer shear weakness zones[J]. , 2021, 40(5): 958-971.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.0881 OR https://rockmech.whrsm.ac.cn/EN/Y2021/V40/I5/958

[1] 宋刚，洪望兵，陈长河，等. 白鹤滩水电站可研地下厂房洞室群围岩稳定工程地质研究报告[R]. 杭州：中国水电工程顾问集团华东勘测设计研究院，2011.(SONG Gang，HONG Wangbing，CHEN Changhe，et al. Engineering geology feasible study report on surrounding rock stabilization for underground powerhouse caverns of Baihetan Hydropower Station[R]. Hangzhou：HydroChina Huadong Engineering Corporation，2011.(in Chinese))
[2] 韩钢，周辉，陈建林，等. 白鹤滩水电站层间错动带工程地质特性[J]. 岩土力学，2019，40(9)：3 559–3 568.(HAN Gang，ZHOU Hui，CHEN Jianlin，et al. Engineering geological properties of interlayer staggered zones at Baihetan Hydropower Station[J]. Rock and Soil Mechanics，2019，40(9)：3 559–3 568.(in Chinese))
[3] 徐鼎平. 层间错动带抗剪度特性及其对洞室群整体稳定性影响的研究[博士学位论文][D]. 武汉：中国科学院武汉岩土力学研究所，2011.(XU Dingping. Study on the shear strength of interlayer shear weakness zone and its effect on the overall stability of cavern group[Ph. D. Thesis][D]. Wuhan：Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，2011.(in Chinese))
[4] 肖裕行，肖树芳. 层间剪切带法向分布和地层法向有序差异[J]. 水文地质工程地质，1996，23(5)：36–39.(XIAO Yuxing，XIAO Shufang. The normal spatial distribution and ordered difference of rock strata of interbedding shear zone[J]. Hydrogeology and Engineering Geology，1996，23(5)：36–39.(in Chinese))
[5] 肖树芳. 泥化夹层蠕变全过程的模型及微结构的变化[J]. 岩石力学与工程学报，1987，6(2)：113–122.(XIAO Shufang. The creep model of intercalated clay layers and change of their microstructure during creep[J]. Chinese Journal of Rock Mechanics and Engineering，1987，6(2)：113–122.(in Chinese))
[6] 丁秀丽，付敬，刘健，等. 软硬互层边坡岩体的蠕变特性研究及稳定性分析[J]. 岩石力学与工程学报，2005，24(19)：3 410–3 418. (DING Xiuli，FU Jing，LIU Jian，et al. Study on creep behavior of alternatively distributed soft and hard rock layers and slope stability analysis[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(19)：3 410–3 418.(in Chinese))
[7] 陈兴周，李建林，柴军瑞，等. 坝肩高边坡层间错动带剪切蠕变特性与模型研究[J]. 岩土工程学报，2013，35(9)：1 675–1 682.(CHEN Xingzhou，LI Jianlin，CHAI Junrui，et al. Shear creep characteristics and constitutive model for interlayer shear belt of high abutment slopes[J]. Chinese Journal of Geotechnical Engineering，2013，35(9)：1 675–1 682.(in Chinese))
[8] 程强，周德培，封志军. 典型红层软岩软弱夹层剪切蠕变性质研究[J]. 岩石力学与工程学报，2009，28(增1)：3 176–3 180.(CHENG Qiang，ZHOU Depei，FENG Zhijun. Research on shear creep properties of typical weak intercalation in redbed soft rock[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.l)： 3 176–3 180.(in Chinese))
[9] 王宇，李建林，刘锋. 坝基软弱夹层剪切蠕变及其长期强度试验研究[J]. 岩石力学与工程学报，2013，32(增2)：3 378–3 384. (WANG Yu，LI Jianlin，LIU Feng. Experimental research on shear creep and its long-term strength of weak intercalation in dam foundation[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(Supp.2)：3 378–3 384.(in Chinese))
[10] 徐瑞春，周建军. 红层与大坝[M]. 武汉：中国地质大学出版社，2010：4–5.(XU Ruichun，ZHOU Jianjun. Red bed and dam[M]. Wuhan：China University of Geosciences Press，2010：4–5.(in Chinese))
[11] 孙钧. 岩石流变力学及其工程应用研究的若干进展[J]. 岩石力学与工程学报，2007，26(6)：1 081–1 106.(SUN Jun. Rock rheological mechanics and its advance in engineering applications[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(6)：1 081–1 106.(in Chinese))
[12] JIA C J，XU W Y，WANG R B，et al. Experimental investigation on shear creep properties of undisturbed rock discontinuity in Baihetan Hydropower Station[J]. International Journal of Rock Mechanics and Mining Sciences，2018，104：27–33.
[13] ZHU S N，YIN Y P，LI B，et al. Shear creep characteristics of weak carbonaceous shale in thick layered Permian limestone，southwestern China[J]. Journal of Earth System Science，2019，128(2)：1–14.
[14] 林宗元. 岩土工程试验监测手册[M]. 北京：中国建筑工业出版社，2005：30–31.(LIN Zongyuan. Monitoring manual for geotechnical engineering test[M]. Beijing：China Architecture and Building Press，2005：30–31.(in Chinese))
[15] 周辉，陈珺，卢景景，等. 岩石多功能剪切试验测试系统研制[J]. 岩土力学，2018，39(3)：1 115–1 122.(ZHOU Hui，CHEN Jun，LU Jingjing，et al. Development of a multi-functional shear test system for rock[J]. Rock and Soil Mechanics，2018，39(3)：1 115– 1 122.(in Chinese))
[16] 中华人民共和国行业标准编写组. SL264—2001 水利水电工程岩石试验规程[S]. 北京：中国水利水电出版社，2001.(The Professional Standards Compilation Group of People¢s Republic of China. SL264—2001 Specification for rock tests in water conservancy and hydroelectric engineering[S]. Beijing：China Water Power Press，2001. (in Chinese))
[17] 中华人民共和国行业标准编写组. GB50487—2008 水利水电工程地质勘察规范[S]. 北京：中国计划出版社，2009.(The Professional Standards Compilation Group of People¢s Republic of China. GB50487— 2008 Code for engineering geological investigation of water resources and hydropower[S]. Beijing：China Planning Press，2009.(in Chinese))
[18] 唐良琴，刘东燕，聂德新. 软弱夹层力学参数取值规范分析[J]. 重庆大学学报，2011，34(12)：35–41.(TANG Liangqin，LIU Dongyan，NIE Dexin. Discussion on values criterion of strength parameters of weak intercalations[J]. Journal of Chongqing University，2011，34(12)：35–41.(in Chinese))
[19] 长江流域规划办公室. 岩石坝基工程地质[M]. 北京：中国水利电力出版社，1982：166–169.(Yangtze Valley Planning Office. Engineering geology of rock dam foundation[M]. Beijing：China Water Power Press，1982：166–169.(in Chinese))
[20] 徐湘涛. 金沙江白鹤滩水电站高边坡岩体力学特性及其稳定性研究[博士学位论文][D]. 成都：成都理工大学，2012.(XU Xiangtao，Research on rock mass mechanical characteristics and stability of high slope of Baihetan Hydropower Station[Ph. D. Thesis][D]. Chengdu：Chengdu University of Technology，2012.(in Chinese))
[21] 陈宗基，康文法. 岩石的封闭应力，蠕变和扩容及本构方程[J]. 岩石力学与工程学报，1991，10(4)：299–312.(TAN Tjongkie，KANG Wenfa，HUANG Jiepan. On the locked in stress，creep and dilatation of rocks，and the constitutive equations[J]. Chinese Journal of Rock Mechanics and Engineering，1991，10(4)：299–312.(in Chinese))
[22] 许东俊. 软弱岩体流变特性及长期强度测定法[J]. 岩土力学，1980，1(1)：40–53.(XU Dongjun. The rheological behavior of the wear rock mass and the method of determining long term¢s strength[J]. Rock and Soil Mechanics，1980，1(1)：40–53.(in Chinese))
[23] 刘晶辉，王山长，杨洪海. 软弱夹层流变试验长期强度确定方法[J]. 勘察科学技术，1996，(5)：3–7.(LIU Jinghui，WANG Shanchang，YANG Honghai. Method to determine the rheological test long term strength for soft intercalations[J]. Site Investigation Science and Technology，1996，(5)：3–7.(in Chinese))
[24] HUANG S L，ZHANG C Q，DING X L，et al. Viscoelastic-plastic constitutive model with non-constant parameters for brittle rock under high stress conditions[J]. European Journal of Environmental and Civil Engineering，2020，(3)：1–19.
[25] 阎岩，王思敬，王恩志. 基于西原模型的变参数蠕变方程[J]. 岩土力学，2010，31(10)：3 025–3 035.(YAN Yan，WANG Sijing，WANG Enzhi. Creep equation of variable parameters based on Nishihara model[J]. Rock and Soil Mechanics，2010，31(10)：3 025–3 035.(in Chinese))
[26] PERZYNA P. Fundamental problems in viscoplasticity[J]. Advances in Applied Mechanics，1966，9(C)：243–377.
[27] KABWE E，KARAKUS M，CHANDA E K. Creep constitutive model considering the overstress theory with an associative viscoplastic flow rule[J]. Computers and Geotechnics，2020，124：103629.
[28] YIN J H，ZHU J G，GRAHAM J. A new elastic viscoplastic model for time-dependent behaviour of normally and overconsolidated clays：theory and verification[J]. Canadian Geotechnical Journal，2002，39(1)：157–173.
[29] YIN Z Y，CHANG C S，KARSTUNEN M，et al. An anisotropic elastic-viscoplastic model for soft clays[J]. International Journal of Solids and Structures，2010，47(5)：665–677.
[30] LIINGAARD M，AUGUSTESEN A，LADE P V. Characterization of models for time-dependent behavior of soils[J]. International Journal of Geomechanics，2004，4(3)：157–177.