基于应力归还控制的岩石荷载速率依存性研究

doi:10.13722/j.cnki.jrme.2015.1194

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Abstract The loading rate dependence of class I and class II rocks was investigated with the stress-feedback method. This method was executed on the servo-controlled testing machine with varied-resistance technology. The complete stress-strain curves were obtained with the stress-feedback method，and the testing machine was very stable at the post-failure region. The tests under the constant loading-rate，alternate loading-rate and loading-unloading- reloading were carried out with the stress-feedback method for class I rocks (Tage tuff，Ogino tuff) and class II rocks (Emochi andesite，Jingkou sandstone) and the elastic and inelastic strains were successfully separated from the loading-unloading-reloading test. The relationship between the inelastic strain and stress was obtained. Experimental results indicate the notable loading rate dependency of strength，failure strain，Young?s modulus and failure life span. Three methods were proposed to calculate the constant n of loading rate dependence at the pre-failure region.

Key words： rock mechanics stress-feedback controlling varied-resistance technology loading rate dependency inelastic strain constant of loading rate dependency

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	Articles by authors
	ZHANG Hailong1
	2
	XU Jiang1
	OKUBO Seisuke1
	PENG Shoujian1
	TANG Yang1
	ZHAO Kai1
	CHEN Cancan1
	MA Shumin1

Cite this article:

ZHANG Hailong1,2,XU Jiang1, et al. Research on loading-rate dependence of rocks by stress-feedback controlling method[J]. , 2017, 36(1): 93-106.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.1194 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/I1/93

[1]	雷鸣，羽柴公博，福井胜则，等. 强度破坏点后岩石应力-应变曲线荷载速率依存性研究[J]. 岩石力学与工程学报，2010，29(6)：1 123-1 131.(LEI M，HASHIBA K，FUKUI K，et al. Loading rate dependency of stress-strain curve in post-failure region of rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(6)： 1 123-1 131.(in Chinese))
[2]	WAWERSIK W，FAIRHURST C. A study of brittle rock fracture in laboratory compression experiments[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1970，7(5)：561-575.
[3]	OKUBO S，NISHIMATSU Y. Uniaxial compression testing using a linear combination of stress and strain as the control variable[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1985，22(5)：323-330.
[4]	PAN P Z，FENG X T，HUDSON J A. Numerical simulations of Class I and Class II uniaxial compression curves using an elasto-plastic cellular automaton and a linear combination of stress and strain as the control method[J]. International Journal of Rock Mechanics and Mining Sciences，2006，43(7)：1 109-1 117.
[5]	BAZANT Z P， BAI S， GETTU R. Fracture of rock： effect of loading rate[J]. Engineering Fracture Mechanics，1993，45(3)：393-398.
[6]	MA L，DAEMEN J J K. Strain rate dependent strength and stress-strain characteristics of a welded tuff[J]. Bull Engineer and Geology Environment，2006，65(3)：221-230.
[7]	YANG J H. Effect of displacement loading rate on mechanical properties of sandstone[J]. Electronic Journal of Geotechnical Engineering，2015，20(2)：591-602.
[8]	JEONG H S，KANG S S，OBARA Y. Influence of surrounding environments and strain rates on strength of rocks under uniaxial compression[J]. International Journal of the Japanese Committee for Rock Mechanics，2008，4(1)：21-24.
[9]	KHAMRAT S，FUENKAJORN K. Effects of loading rate and pore pressure on compressive strength of rocks[C]// The 11st International Conference on Mining，Materials and Petroleum Engineering. [S. l.]：[s. n.]，2013：11-13.
[10]	OKUBO S，FUKU K，NISHIMATSU Y. Control performance of servo-controlled testing machines in compression and creep tests[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1993，30(3)：247-255.
[11]	OKUBO S，NISHIMATSU Y，HE C. Loading rate dependence of Class II rock behavior in uniaxial and triaxial compression tests—an application of a proposed new control method[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1990，27(6)：559-562.
[12]	OKUBO S，GAO X J，FUKUI K. Deformation characteristics and a physical model for porous rocks under air-dried and water-saturated conditions[J]. Journal of the Mining and Materials Processing Institute of Japan，2005，121(12)：583-589.
[13]	OKUBO S，FUKUI K，GAO X J. Rheological behaviour and model for porous rocks under air-dried and water-saturated conditions[J]. The Open Civil Engineering Journal，2008，2(1)：88-98.
[14]	HASHIBA K，FUKUI K. Index of loading-rate dependency of rock strength[J]. International Journal of Rock Mechanics and Engineering，2015，48(2)：859-865.
[15]	HASHIBA K，OKUBO S，FUKUI K. A new testing method for investigating the loading rate dependency of peak and residual rock strength[J]. International Journal of Rock Mechanics and Mining Sciences，2006，43(6)：894-904.
[16]	HASHIBA K，LEI M，OKUBO S，et al. Strength recovery and loading-rate dependency of fractured rock[J]. Journal of the Mining and Materials Processing Institute of Japan，2009，125(9)：481-488.
[17]	OKUBO S，FUKUI K. An analytical investigation of a variable- compliance-type constitutive equation[J]. Rock Mechanics and Rock Engineering，2006，39(3)：233-253.
[18]	金丰年. 岩石的时间效应[博士学位论文][D]. 上海：同济大学，1993.(JING Fengnian. Time-depentent behaviour of rock[Ph. D. Thesis][D]. Shanghai：Tongji University，1993.(in Chinese))
[19]	OKUBO S，NISHIMATSU Y，FUKUI K. Complete creep curves under uniaxial compression[J]. Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1991，28(1)：77-82.
[20]	OKUBO S，ZHANG HL K，XU J，et al. Numerical simulation on generalized relaxation of Sanjome andesite[J]. Journal of the Mining and Materials Processing Institute of Japan，2014，130(8)：428-433.
[21]	LEI M，HASHIBA K，OKUBO S，et al. Loading rate dependency of rock in indirect tension test[C]// the 12nd Japan Symposium on Rock Mechanics and 29th Western Japan Symposium on Rock Engineering. [S. l.]：[s. n.]，2008.