动静加载条件下花岗岩声发射b值特征的研究

doi:10.13722/j.cnki.jrme.2016.0272

摘要
图/表
参考文献(28)
相关文章 (15)

全文: PDF (1654 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要通过分离式霍普金森压杆(SHPB)试验系统及MTS322型试验机分别对花岗岩试件进行冲击加载和不同加载速率单轴压缩的声发射试验研究，对比分析不同加载条件下岩石破裂的声发射b值特性。结果表明：冲击荷载下岩石声发射b值要小于静载，且随着加载速率的增加b值逐渐减小。在不同加载速率的单轴压缩试验中，动态b值的波动幅度随加载速率的增加而变大，各试件的b值在达到峰值应力时均有明显的减小。此外，在冲击荷载下，破碎程度低的试件b值较小，而破碎程度高的试件b值较大，因此，b值可以作为冲击荷载下岩石破碎程度的一个评价指标。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	刘希灵
	潘梦成
	李夕兵
	王金鹏

关键词 ：岩石力学, 岩石声发射, b值, 分离式霍普金森压杆, 加载速率, 岩石破碎程度

Abstract：In order to study the b-value characteristics of rock acoustic emission(AE) under different loading conditions，the split Hopkinson pressure bar(SHPB) system and MTS322 servo-controlled rock mechanical test system were employed respectively to carry out the impact loading tests and uniaxial compression tests at different loading rates. The results show that b-value under impact loading is smaller than the one under static loading，and the b-value decreases gradually with the increase of loading rate. In the uniaxial compression tests at different loading rates，the fluctuation range of dynamic b-value increases with the increase of loading rate，and the b-value decreases sharply as load reaches the peak stress of specimen. Furthermore，in impact loading tests，the fragmentation of specimen varies cause of the differences of their strength and composition，and the b-value is larger when the degree of fragmentation is higher，therefore，the b-value can be used as a fragmentation evaluation index of rock under impact loading.

Key words： rock mechanics rock acoustic emission b-value split Hopkinson pressure bar(SHPB) loading rate rock fragmentation

引用本文:

刘希灵，潘梦成，李夕兵，王金鹏. 动静加载条件下花岗岩声发射b值特征的研究[J]. 岩石力学与工程学报, 2017, 36(S1): 3148-3155.
LIU Xiling，PAN Mengcheng，LI Xibing，WANG Jinpeng. Acoustic emission b-value characteristics of granite under dynamic loading and static loading. , 2017, 36(S1): 3148-3155.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2016.0272 或 https://rockmech.whrsm.ac.cn/CN/Y2017/V36/IS1/3148

[1]	BLAKE W. Microseismic applications for mining—a practical guide[R]. [S. l.]：Bureau of Mines，U.S. Department of the Interior，1982.
[2]	GUTENBER B，RICHTER C F. Frequency of earthquakes in California[J]. Bulletin of The Seismological Society of America，1944，34(4)：185-188.
[3]	李元辉，刘建坡，赵兴东，等. 岩石破裂过程中的声发射b值及分形特征研究[J]. 岩土力学，2009，30(9)：2 559-2 563.(LI Yuanhui，LIU Jianpo，ZHAO Xingdong，et al. Study on b-value and fractal dimension of acoustic emission during rock failure process[J]. Rock and Soil Mechanics，2009，30(9)：2 559-2 563.(in Chinese))
[4]	MOGI K. Study of elastic shocks caused by the fracture of heterogeneous materials and its relations to earthquakes phenomena[J]. Bulletin of the Earthquake Research Institute，1962，40(1)：125-173.
[5]	徐子杰，齐庆新，李宏艳，等. 不同应力水平下大理石蠕变损伤声发射特性[J]. 煤炭学报，2014，39(增1)：70-74.(XU Zijie，QI Qingxin，LI Hongyan，et al. Marble creep damage and acoustic emission characteristics under different stress levels[J]. Journal of China Coal Society，2014，39(Supp.1)：70-74.(in Chinese))
[6]	茂木清夫. 日本的地震预报[M]. 庄灿涛译. 北京：地震出版社，1986：103-108.(MOGI K. Earthquake prediction in Japan[M]. Translated by ZHUANG Cantao. Beijing：Seismological Press，1986：103-108.(in Chinese))
[7]	WARRENN W，LATHAMG V. An experimental study of thermally induced microfracturing and its relation to volcanic seismicity[J]. Journal of Geophysical Research，1970，75(23)：4 455-4 464.
[8]	方亚如，蔡戴恩，刘晓红，等. 含水岩石破裂前的声发射b值变化[J]. 地震，1986，(2)：1-6.(FANG Yaru，CAI Daien，LIU Xiaohong，et al. The change of b-value of acoustic emission before ruptures of water-bearing[J]. Earthquake，1986，(2)：1-6.(in Chinese))
[9]	SHIOTANI T，FUJII K，AOKI T，et al. Evaluation of progressive failure using AE sources and improved b-value on slope model tests[C]// Progress in Acoustic Emission VII. Tokyo：Japanese Society for Non-Destructive Inspection，1999：529-534.
[10]	RAOMV M S，LAKSHMIK J P. Analysis of b-value and improved b-value of acoustic emissions accompanying rock fracture[J]. Current Science，2005，89(9)：1 577-1 582.
[11]	秦四清，李造鼎. 岩石声发射事件在空间上的分形分布研究[J]. 应用声学，1992，11(4)：19-21.(QIN Siqing，LI Zhaoding. Research on the fractal spatial distribution in space of rock acoustic emission events[J]. Applied Acoustics，1992，11(4)：19-21.(in Chinese))
[12]	张黎明，马绍琼，任明远，等. 不同围压下岩石破坏过程的声发射频率及b值特征[J]. 岩石力学与工程学报，2015，34(10)：2 057- 2 063.(ZHANG Liming，MA Shaoqiong，REN Mingyuan，et al. Acoustic emission frequency and b value characteristics in rock failure process under various confining pressures[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(10)：2 057-2 063.(in Chinese))
[13]	赵小平，陈淑芬. 基于声发射振幅分布的裂隙岩体破坏演化过程[J]. 岩石力学与工程学报，2015，34(增1)：3 012-3 017.(ZHAO Xiaoping，CHEN Shufen. Failure evolution process of fractured rockmass based on amplitude of acoustic emission[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(Supp.1)：3 012-3 017. (in Chinese))
[14]	LEI X L. Typical phases of pre-failure damage in granitic rocks under differential compression[C]// Geological Society of London. [S. l.]：[s. n.]，2006：11-29.
[15]	李宏艳，康立军，徐子杰，等. 不同冲击倾向煤体失稳破坏声发射先兆信息分析[J]. 煤炭学报，2014，39(2)：384-388.(LI Hongyan，KANG Lijun，XU Zijie，et al. Precursor information analysis on acoustic emission of coal with different outburst proneness[J]. Journal of China Coal Society，2014，39(2)：384-388.(in Chinese))
[16]	李全林，陈锦标，于渌，等. b值时空扫描—监视破坏性地震孕育过程的一种手段[J]. 地球物理学报，1978，21(2)：101-125.(LI Quanlin，CHEN Jinbiao，YU Lu，et al. Time and space scanning of b-value—a method for monitoring the development of catastrophic earthquakes[J]. Chinese Journal of Geophysics，1978，21(2)：101-125.(in Chinese))
[17]	COLOMBO I S，MAIN I G，FORDE M C. Assessing damage of reinforced concrete beam using“b-value”analysis of acoustic emission signals[J]. Journal of Materials in Civil Engineering，2003，15(3)：280-286.
[18]	SAGAR R V，PRASAD B K R，KUMAR S S. Comparison of acoustic emission b-values with strains in reinforced concrete beams for damage evaluation[J]. Bridge Engineering，2012，165(BE4)：233-244.
[19]	曾正文，马瑾，刘力强，等. 岩石破裂扩展过程中的声发射b值动态特征及意义[J]. 地震地质，1995，17(1)：7-11.(ZENG Zhengwen，MA Jin，LIU Liqiang，et al. AE b-value dynamic features during rockmass fracturing and their significances[J]. Seismology and Geology，1995，17(1)：7-11.(in Chinese))
[20]	王其胜，万国香，李夕兵. 动静组合加载下岩石破坏的声发射实验[J]. 爆炸与冲击，2010，30(3)：247-253.(WANG Qisheng，WAN Guoxiang，LI Xibing. Acoustic emission experiment of rock failure under coupled static-dynamic load[J]. Explosion and Shock Waves，2010，30(3)：247-253.(in Chinese))
[21]	LIU X L，LI X B，HONG L，et al. Acoustic emission characteristics of rock under impact loading[J]. Journal of Central South University，2015，22(9)：3 571-3 577.
[22]	BENSON P M，VINCIGUERRA S，MEREDITH P，et al. Laboratory simulation of volcano seismicity[J]. Science，2008，322(5899)：249-252.
[23]	BURLINI L，VINCIGUERRA S，TORO G D，et al. Seismicity preceding volcanic eruptions：New experimental insights[J]. Geology，2007，35(2)：183-186.
[24]	VINOGRADOV S D. Acoustic observations in collieries of the kizelsk coal basin[J]. Bulletin of the Academy of Sciences of the USSR：Geophysics Series，1957，(6)：126-131.
[25]	VINOGRADOV S D. Experimental study of the distribution of the number of fractures in respect to the energy liberated by the destruction of rocks[J]. Bulletin of the Academy of Sciences of the USSR：Geophysics Series，1962，(2)：171-180.
[26]	许金余，刘石. 大理岩冲击加载试验碎块的分形特征分析[J]. 岩土力学，2012，33(11)：3 225-3 229.(XU Jinyu，LIU Shi. Research on fractal characteristics of marble fragments subjected to impact loading[J]. Rock and Soil Mechanics，2012，33(11)：3 225-3 229.(in Chinese))
[27]	AKIK. A probabilistic synthesis of precursory phenomena，in earthquake prediction[M]. Washington D. C.：[s. n.]，1981：566-574.
[28]	彭成斌，陈颙. 分数维理论在地震科学中的应用[J]. 西北地震学报，1990，12(4)：84-87.(PENG Chengbin，CHEN Yong. Application of fractal theory in seismic science[J]. Northwestern Seismological Journal，1990，12(4)：84-87.(in Chinese))