冻融灰岩单轴声发射损伤特性试验研究

doi:10.13722/j.cnki.jrme.2021.0307

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Abstract In order to explore the evolution law of mechanical properties of limestone and progressive damage characteristics of internal meso structure under the effects of freeze-thaw and uniaxial load，the uniaxial compression and acoustic emission monitoring tests of limestone with different freeze-thaw cycles were carried out. Firstly，the physical and mechanical parameters evolution law was obtained. Then，the correlation between acoustic emission signal and microcrack activity in freeze-thaw limestone was analyzed. Meanwhile，the damage cumulative change rule was quantitatively studied. Finally，the deterioration mechanism of freeze-thaw damage of limestone was clarified. The results show that the uniaxial compressive strength，elastic modulus and Poisson?s ratio of limestone decrease gradually with the increase of freeze-thaw cycles，and accompanied with the final discount rate to 61.43%，48.42% and 17.33%，respectively. However，there is gradual increase in the peak strain. The acoustic emission ringing count change process can be divided into calm stage，growth stage，and steep increase stage. As the increase of freeze-thaw cycles，the uniaxial acoustic emission signal of limestone is active with the local high-density released characteristics，and the acoustic emission b value presents a “V”-shaped change. Meanwhile，the local sudden drop of the dynamic b value indicates that large-scale cracks have been generated. Moreover，the type of internal microcracks in the limestone converts from shear to tensile，which contributes to the failure change from shear to split. The damage variables of limestone，which presents with a trend of abrupt or gradual mutation after 0，10 and 20 freeze-thaw cycles，increase gradually after 40，60 and 80 freeze-thaw cycles. In addition，the main causes of freeze-thaw damage of limestone are the volume expansion of pore and fissure structures caused by water-ice transformation，meso hydraulic fracture caused by local ice accretion and the free hydrodynamic response.

Key words： rock mechanics freeze-thaw cycle uniaxial compression acoustic emission damage deterioration mechanism

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	Articles by authors
	SONG Yanqi1
	2
	MA Hongfa2
	LIU Jichen2
	LI Xiangshang2
	ZHENG Junjie2
	FU Hang2

Cite this article:

SONG Yanqi1,2,MA Hongfa2, et al. Experimental investigation on the damage characteristics of freeze-thaw limestone by the uniaxial compression and acoustic emission monitoring tests[J]. , 2022, 41(S1): 2603-2614.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2021.0307 OR https://rockmech.whrsm.ac.cn/EN/Y2022/V41/IS1/2603

[1]	周幼吾，郭东信，邱国庆，等. 中国冻土[M]. 北京：科学出版社，2000：366-388.(ZHOU Youwu，GUO Dongxin，QIU Guoqing，et al. Chinese frozen soil[M]. Beijing：Science Press，2000：366-388.(in Chinese))
[2]	单仁亮，张蕾，杨昊，等. 饱水红砂岩冻融特性试验研究[J]. 中国矿业大学学报，2016，45(5)：923-929.(SHAN Renliang，ZHANG Lei，YANG Hao，et al. Experimental study of freeze-thaw properties of saturated red sandstone[J]. Journal of China University of Mining and Technology，2016，45(5)：923-929.(in Chinese))
[3]	黄诗冰，刘泉声，刘艳章，等. 低温热力耦合下岩体椭圆孔(裂)隙中冻胀力与冻胀开裂特征研究[J]. 岩土工程学报，2018，40(3)：459-467.(HUANG Shibing，LIU Quansheng，LIU Yanzhang，et al. Frost heaving pressure and characteristics of frost cracking in elliptical cavity(crack) of rock mass under coupled thermal-mechanical condition at low temperature[J]. Chinese Journal of Geotechnical Engineering，2018，40(3)：459-467.(in Chinese))
[4]	乔趁，李长洪，王宇，等. 冻融循环作用下中部锁固岩桥破坏试验研究[J]. 岩石力学与工程学报，2020，39(6)：1 094-1 103. (QIAO Chen，LI Changhong，WANG Yu，et al. Experimental study on failure of central rock bridge under freeze-thaw cycle[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(6)：1 094- 1 103.(in Chinese))
[5]	李平，唐旭海，刘泉声，等. 双裂隙类砂岩冻胀断裂特征与强度损失研究[J]. 岩石力学与工程学报，2020，39(1)：115-125.(LI Ping，TANG Xuhai，LIU Quansheng，et al. Experimental study on fracture characteristics and strength loss of intermittent fractured quasi-sandstone under freezing and thawing[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(1)：115-125.(in Chinese))
[6]	HUANG S B，CAI Y T，LIU Y Z，et al. Experimental and theoretical study on frost deformation and damage of red sandstones with different water contents[J]. Rock Mechanics and Rock Engineering，2021，54(8)：4 163-4 181.
[7]	杨更社，蒲毅彬. 冻融循环条件下岩石损伤扩展研究初探[J]. 煤炭学报，2002，27(4)：357-360.(YANG Gengshe，PU Yibin. Initial discussion on the damage propagation of rock under the frost and thaw condition[J]. Journal of China Coal Society，2002，27(4)：357-360. (in Chinese))
[8]	徐拴海，李宁，王晓东，等. 露天煤矿冻岩边坡饱和砂岩冻融损伤试验与劣化模型研究[J]. 岩石力学与工程学报，2016，35(12)：2 561-2 571.(XU Shuanhai，LI Ning，WANG Xiaodong，et al. Damage test and degradation model of saturated sandstone due to cyclic freezing and thawing of rock slopes of open-pit coal mine[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(12)：2 561-2 571.(in Chinese))
[9]	程桦，陈汉青，曹广勇，等. 多孔岩石冻融水分迁移损伤机制及试验验证[J]. 岩石力学与工程学报，2020，39(9)：1 739-1 749. (CHENG Ye，CHEN Hanqing，CAO Guangyong，et al. Damage mechanism of porous rock caused by moisture migration during freeze-thaw process and experimental verification[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(9)：1 739-1 749.(in Chinese))
[10]	申艳军，杨更社，王铭，等. 冻融循环过程中岩石热传导规律试验及理论分析[J]. 岩石力学与工程学报，2016，35(12)：2 417-2 425. (SHEN Yanjun，YANG Gengshe，WANG Ming，et al. Experimental and theoretical study on thermal conductivity of rock under cyclic freezing and thawing[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(12)：2 417-2 425.(in Chinese))
[11]	徐光苗，刘泉声. 岩石冻融破坏机理分析及冻融力学试验研究[J]. 岩石力学与工程学报，2005，24(17)：3 076-3 082.(XU Guangmiao，LIU Quansheng. Analysis of mechanism of rock failure due to freeze-thaw cycling and mechanical testing study on frozen-thawed rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(17)：3 076-3 082.(in Chinese))
[12]	杨秀荣，姜谙男，王善勇，等. 冻融循环条件下片麻岩蠕变特性试验研究[J]. 岩土力学，2019，40(11)：4 331-4 340.(YANG Xiurong，JIANG Annan，WANG Shanyong，et al. Experimental study on creep characteristics of gneiss under freeze-thaw cycles[J]. Chinese Journal of Rock and Soil Mechanics，2019，40(11)：4 331-4 340.(in Chinese))
[13]	贺晶晶，师俊平. 冻融后不同含水状态砂岩的剪切破坏特性[J]. 岩石力学与工程学报，2018，37(6)：1 350-1 358.(HE Jingjing，SHI Junping. Shear failure properties of sandstone with different moisture contents after cyclic freezing-thawing[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(6)：1 350-1 358.(in Chinese))
[14]	许玉娟，周科平，李杰林，等. 冻融岩石核磁共振检测及冻融损伤机制分析[J]. 岩土力学，2012，33(10)：3 001-3 005.(XU Yujuan，ZHOU Keping，LI Jielin，et al. Study of rock NMR experiment and damage mechanism analysis under freeze-thaw condition[J]. Rock and Soil Mechanics，2012，33(10)：3 001-3 005.(in Chinese))
[15]	陈宇龙，张科，孙欢. 冻融循环作用下岩石表面裂纹扩展过程细观研究[J]. 土木工程学报，2019，52(增1)：1-7.(CHEN Yulong，ZHANG Ke，SUN Huan. Meso-research on the development of rock surface crack under freeze-thaw cycles[J]. China Civil Engineering Journal，2019，52(Supp.1)：1-7.(in Chinese))
[16]	SHKURATNIK V L，FILIMONOV Y L，KUCHURIN S V. Regularities of acoustic emission in coal samples under triaxial compression[J]. Journal of Mining Science，2005，41(1)：44-52.
[17]	ZHAO Y C，YANG T H，XU T，et al. Mechanical and energy release characteristics of different water-bearing sandstones under uniaxial compression[J]. International Journal of Damage Mechanics，2017，27(5)：640-656.
[18]	刘慧，蔺江昊，杨更社，等. 冻融循环作用下砂岩受拉损伤特性的声发射试验[J]. 采矿与安全工程学报，2020，38(1)：1-11.(LIU Hui，LIN Jianghao，YANG Gengshe，et al. Acoustic emission test on tensile damage characteristics of sandstone under freeze-thaw cycle[J]. Chinese Journal of Mining and Safety Engineering，2020，38(1)：1-11.(in Chinese))
[19]	付斌，周宗红，王海泉，等. 大理岩单轴循环加卸载破坏声发射先兆信息研究[J]. 煤炭学报，2016，41(8)：1 946-1 953.(FU Bin，ZHOU Zonghong，WANG Haiquan，et al. Precursor information study on acoustic emission characteristics of marble under uniaxial cyclic loading-unloading[J]. Journal of China Coal Society，2016，41(8)： 1 946-1 953.(in Chinese))
[20]	张国凯，李海波，王明洋，等. 岩石单轴压缩下损伤表征及演化规律对比研究[J]. 岩土工程学报，2019，41(6)：1 074-1 082.(ZHANG Guokai，LI Haibo，WANG Mingyang，et al. Comparative study on damage characterization and damage evolution of rock under uniaxial compression[J]. Chinese Journal of Geotechnical Engineering，2019，41(6)：1 074-1 082.(in Chinese))
[21]	陈绍杰，刘小岩，韩野，等. 充填膏体蠕变硬化特征与机制试验研究[J]. 岩石力学与工程学报，2016，35(3)：570-578.(CHEN Shaojie，LIU Xiaoyan，HAN Ye，et al. Experimental study of creep hardening characteristic and mechanism of filling paste[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(3)：570-578. (in Chinese))
[22]	方云，乔梁，陈星，等. 云冈石窟砂岩循环冻融试验研究[J]. 岩土力学，2014，35(9)：2 433-2 442.(FANG Yun，QIAO Liang，CHEN Xing，et al. Experimental study of freezing-thawing cycles on sandstone in Yungang grottos[J]. Rock and Soil Mechanics，2014，35(9)：2 433-2 442.(in Chinese))
[23]	GUTENBERG B，RICHTER C F. Frequency of earthquakes in California[J]. Bulletin of the Seismological Society of America，1944，34(4)：185-188.
[24]	张艳博，孙林，姚旭龙，等. 花岗岩破裂过程声发射关键信号时频特征试验研究[J]. 岩土力学，2020，41(1)：157-165.(ZHANG Yanbo，SUN Lin，YAO Xulong，et al. Experimental study of time-frequency characteristics of acoustic emission key signals during granite fracture[J]. Rock and Soil Mechanics，2020，41(1)：157-165.(in Chinese))
[25]	安定超，张盛，张旭龙，等. 岩石断裂过程区孕育规律与声发射特征试验研究[J]. 岩石力学与工程学报，2021，40(2)：290-301. (AN Dingchao，ZHANG Sheng，ZHANG Xulong，et al. Experimental study on incubation and acoustic emission characteristics of rock fracture process zones[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(2)：290-301.(in Chinese))
[26]	吴贤振，刘建伟，刘祥鑫，等. 岩石声发射振铃累计数与损伤本构模型的耦合关系探究[J]. 采矿与安全工程学报，2015，32(1)：28-34.(WU Xianzhen，LIU Jianwei，LIU Xiangxin，et al. Study on the coupled relationship between AE accumulative ring-down count and damage constitutive model of rock[J]. Chinese Journal of Mining and Safety Engineering，2015，32(1)：28-34.(in Chinese))
[27]	杨明辉，赵明华，曹文贵. 岩石损伤软化统计本构模型参数的确定方法[J]. 水利学报，2005，36(3)：345-349.(YANG Minghui，ZHAO Minghua，CAO Wengui. Method for determining the parameters of statistical damage softening constitutive model for rock[J]. Chinese Journal of Hydraulic Engineering，2005，36(3)：345-349.(in Chinese))
[28]	贾海梁，项伟，谭龙，等. 砂岩冻融损伤机制的理论分析和试验验证[J]. 岩石力学与工程学报，2016，35(5)：879-895.(JIA Hailiang，XIANG Wei，TAN Long，et al. Theoretical analysis and experimental verifications of frost damage mechanism of sandstone[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(5)：879-895.(in Chinese))