岩石真三轴加载破坏的热–声前兆信息链初探

doi:10.13722/j.cnki.jrme.2020.0984

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (19607 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Sudden instability of hard brittle rock often brings disastrous consequences，so it is very meaningful to study the precursor information of sudden instability of hard brittle rock. In this paper，the true triaxial loading tests of red sandstone samples under different intermediate principal stress conditions are carried out. The thermal infrared thermal imaging evolution and temperature characteristics during rock fracture are studied adopting infrared thermal imaging technology，and the crack propagation source，crack propagation trend，acoustic emission characteristics and fracture evolution mechanism of rock under true triaxial loading are analyzed by using the acoustic emission and high-speed video technology. A non-contact pre-warning index of rock fracture based on thermal infrared is proposed，which can give early warning of rock failure before the abnormal temperature change caused by rock fracture. The results show that there are four kinds of precursory information before rock fracture，which are thermal infrared temperature precursory，acoustic emission precursory，thermal image anomaly precursory and rock macro crack precursory. The occurrence times of the thermal infrared temperature precursor and the acoustic emission precursor are relatively early，which can give priority to the early warning of rock failure. The occurrence times of the thermal image anomaly precursor and the macro crack precursor are relatively late， close to the specimen failure. Thermal image anomaly can indicate the potential fracture area of rock. In this paper，the thermoacoustic precursory information chain of hard brittle rock is established from the internal，external，temporal and spatial aspects of rock. The related research can provide a useful reference for the analysis and prevention of sudden rock failure.

Key words： rock mechanics rock fracture true-triaxial tests acoustic emission thermal infrared thermo-acoustic precursor

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Guoqing1
	ZHANG Yan1
	LI Yang1
	PAN Yuangui1
	JIN Changyu2

Cite this article:

CHEN Guoqing1,ZHANG Yan1,LI Yang1, et al. Thermal-acoustic precursor information chain of rock failure under true triaxial loading[J]. , 2021, 40(9): 1764-1776.

URL:

http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2020.0984 OR http://rockmech.whrsm.ac.cn/EN/Y2021/V40/I9/1764

[25]	NADAI A. Theory of flow and fracture of solids[M]. New York：McGraw-Hill，1950：94-108.
[20]	CHANG C，HAIMSON B. A failure criterion for rocks based on true triaxial testing[J]. Rock Mechanics and Rock Engineering，2012，45：1 007-1 010.
[26]	MOGI K. Fracture and flow of rocks under high triaxial compression[J]. Journal of Geophysical Research，1971，76：1 255- 1 269.
[1]	张艳博，于光远，田宝柱，等. 花岗岩破裂过程声发射主频多元前兆信息识别[J]. 采矿与安全工程学报，2017，34(2)：355-362. (ZHANG Yanbo，YU Guangyuan，TIAN Baozhu，et al. Identification of multiple precursor information of acoustic emission dominant frequency in the process of granite failure[J]. Journal of Mining and Safety Engineering，2017，34(2)：355-362.(in Chinese))
[4]	李杨，袁安营. 不同岩性煤岩体声发射特征参数及破坏前兆信息研究[J]. 煤炭工程，2018，50(12)：86-89.(LI Yang，YUAN Anying. Research on AE characteristic parameters and damage precursor information of coal and rock mass with different lithology[J]. Coal Engineering，2018，50(12)：86-89.(in Chinese))
[6]	王创业，常新科，刘沂琳. 花岗岩破裂全过程声发射时频域信号特征及前兆识别信息[J]. 长江科学院院报，2020，30(3)：82-89. (WANG Chuangye，CHANG Xinke，LIU Yilin. Time and frequency domain characteristics and damage precursor identification information of acoustic emission signals during granite loading[J] Journal of Yangtze River Scientific Research Institute，2020，30(3)：82-89.(in Chinese))
[8]	陈国庆，唐鹏，李光明，等. 岩桥直剪试验声发射频谱特征及主破裂前兆分析[J]. 岩土力学，2019，40(5)：1 649-1 656.(CHEN Guoqin，TANG Peng，LI Guangming，et al. Analysis of acoustic emission frequency spectrum characteristics and main fracture precursor of rock bridge in direct shear test[J]. Rock and Soil Mechanics，2019，40(5)：1 649-1 656.(in Chinese))
[11]	熊伟. 不同水温浸泡后花岗岩单轴压缩下红外温度场特性研究[硕士学位论文][D]. 赣州：江西理工大学，2017.(XIONG Wei. Study on infrared temperature filed characteristics of granite under uniaxial compression after different water temperature soaking[M. S. Thesis][D]. Ganzhou：Jiangxi University of Science and Technology，2017.(in Chinese))
[21]	YOU M Q. True-triaxial strength criteria for rock[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46：115-127.
[9]	吴贤振，高祥，刘祥鑫，等. 饱水粉砂岩破裂过程中红外温度突变异常[J]. 煤炭学报，2015，40(2)：328-336.(WU Zhenxian，GAO Xiang，LIU Xiangxin，et al. Abnormality of infrared temperature mutation in the process of saturated siltstone failure[J]. Journal of China Coal Society，2015，40(2)：328-336.(in Chinese))
[14]	陈国庆，潘元贵，张国政，等. 节理岩桥裂纹扩展的热红外前兆信息研究[J]. 岩土工程学报，2019，41(10)：1 817-1 826.(CHEN Guoqin，PAN Yuangui，ZHANG Guozheng，et al. Thermal infrared precursor information of crack propagation for rock bridges[J]. Chinese Journal of Geotechnical Engineering，2019，41(10)：1 817-1 826.(in Chinese))
[16]	张艳博，刘翠萍，梁鹏，等. 水对粉砂岩受力破裂红外辐射温度敏感性实验[J]. 辽宁工程技术大学学报：自然科学版，2016，35(3)：259-264.(ZHANG Yanbo，LIU Cuiping，LIANG Peng，et al. Experiment study of water to the sensitivity of siltstone infrared radiation temperature in stress rupture[J]. Journal of Liaoning Technical University：Natural Science，2016，35(3)：259-264.(in Chinese))
[18]	SU G S，FENG X T，WANG J H，et al. Experimental study of remotely triggered rockburst induced by a tunnel axial dynamic disturbance under true-triaxial conditions[J]. Rock Mechanics and Rock Engineering，2017，50：2 207-2 226.
[19]	FENG X T，KONG R，YANG C X，et al. A three-dimensional failure criterion for hard rocks under true triaxial compression[J]. Rock Mechanics and Rock Engineering，2020，53(1)：103-111.
[24]	YIN G Z，JIANG C B，WANG J G，XU J，et al. A new experimental apparatus for coal and gas outburst simulation[J]. Rock Mechanics and Rock Engineering，2016，49(5)：2 005-2 013.
[28]	ZHANG Y，FENG X T，YANG C X，et al. Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy[J]. International Journal of Rock Mechanics and Mining Sciences，2019，117：150-161.
[29]	ZHANG Y，FENG X T，YANG C X，et al. Evaluation method of rock brittleness under true triaxial stress states based on pre-peak deformation characteristic and post-peak energy evolution[J]. Rock Mechanics and Rock Engineering，2021，54：1 277-1 291.
[2]	张艳博，梁鹏，孙林，等. 单轴压缩下饱水花岗岩破裂过程声发射频谱特征试验研究[J]. 岩土力学，2019，40(7)：2 497-2 506.(ZHANG Yanbo，LIANG Peng，SUN Lin，et al. Spectral characteristics of AE in the process of saturated granite fracture under uniaxial compression[J]. Rock and Soil Mechanics，2019，40(7)：2 497-2 506.(in Chinese))
[3]	刘倩颖，张茹，高明忠，等. 煤卸荷过程中声发射特征及综合破坏前兆分析[J]. 四川大学学报：工程科学版，2016，48(2)：67-74.(LIU Qianying，ZHANG Ru，GAO Mingzhong，et al. Acoustic emission characteristics and comprehensive failure precursors of coal under unloading conditions[J]. Journal of Sichuan University：Engineering Science，2016，48(2)：67-74.(in Chinese))
[5]	王泽鹏，顾义磊，李清淼，等. 不同围压下页岩声发射及破裂前兆信息研究[J]. 地下空间与工程学报，2018，14(1)：78-85.(WANG Zepeng，GU Yilei，LI Qingmiao，et al. Research on confining pressure effect on acoustic emission of shale and its main fracture precursor information[J]. Chinese Journal of Underground Space and Engineering，2018，14(1)：78-85.(in Chinese))
[7]	宋朝阳，纪洪广，张月征，等. 不同粒度弱胶结砂岩声发射信号源与其临界破坏前兆信息判识研究[J]. 煤炭学报，2020，45(1)：1-10.(SONG Chaoyang，JI Hongguang，ZHANG Yuezheng，et al. Study on acoustic emission signal sources and critical failure precursors of weakly consolidated sandstone with different grain sizesv[J]. Journal of China Coal Society，2020，45(1)：1-10.(in Chinese))
[10]	吴贤振，高祥，赵奎，等. 岩石破裂过程中红外温度场瞬时变化异常探究[J]. 岩石力学与工程学报，2016，35(8)：1 578-1 594. (WU Xianzhen，GAO Xiang，ZHAO Kui，et al. Abnormality of transient infrared temperature field(ITF) in the process of rock failure[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(8)：1 578-1 594.(in Chinese))
[12]	张垚. 黄砂岩单轴加载红外辐射特征实验研究[硕士学位论文][D]. 徐州：中国矿业大学，2017.(ZHANG Yao. Experiment study on the characteristics of infrared thermal radiation of yellow sandstone specimens under uniaxial loading[M. S. Thesis][D]. Xuzhou：China University of Mining and Technology，2017.(in Chinese))
[13]	赵毅鑫，姜耀东，祝捷，等. 煤岩组合体变形破坏前兆信息的试验研究[J]. 岩石力学与工程学报，2008，27(2)：339-346.(ZHAO Yixin，JIANG Yaodong，ZHU Jie，et al. Experimental study on precursory information of deformations of coal-rock composite samples before failure[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(2)：339-346.(in Chinese))
[15]	徐忠印，刘善军，吴立新. 岩石变形破裂红外与微波辐射变化特征对比研究[J]. 东北大学学报：自然科学版，2015，36(12)：1 738- 1 742.(XU Zhongyin，LIU Shanjun，WU Lixin. Comparative study on the variation features of infrared and microwave radiation in deformation and fracture process of rock[J]. Journal of Northeastern University：Natural Science，2015，36(12)：1 738-1 742.(in Chinese))
[17]	周子龙，常银，蔡鑫. 不同加载速率下岩石红外辐射效应的试验研究[J]. 中南大学学报：自然科学版，2019，50(5)：1 127-1 134. (ZHOU Zilong，CHANG Yin，CAI Xin. Experimental study of infrared radiation effects of rock with different loading rates[J]. Journal of Central South University：Science and Technology，2019，50(5)：1 127-1 134.(in Chinese))
[22]	SHI L，LI X，BAI B，et al. A Mogi-type true triaxial testing apparatus for rocks with two moveable frames in horizontal layout for providing orthogonal loads[J]. Geotechnical Testing Journal，2017，40：542-558.
[23]	HE M C，MIAO J L，FENG J L. Rock burst process of limestone and its acoustic emission characteristics under true-triaxial unloading conditions[J]. International Journal of Rock Mechanics and Mining Sciences，2010，47(2)：286-298.
[27]	FENG X T，KONG R，ZHANG X W，et al. Experimental study of failure differences in hard rock under true triaxial compression[J]. Rock Mechanics and Rock Engineering，2019，52：2 109-2 122.