不同材料组合及配比下类岩石试件单轴压缩损伤破坏过程分析

doi:10.13722/j.cnki.jrme.2022.0303

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (5676 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要井下大尺寸真实岩芯难以获取且数量有限，通常采用类比法在室内制作类岩石材料试件模拟实际煤岩，以此开展水压致裂试验。为精确研究类岩石材料试件的力学特性，以水泥、石英砂、石膏和煤粉为原材料浇筑不同组合及配比的类岩石材料试件，通过单轴压缩试验，探究水膏比、砂胶比以及煤粉对试件力学特性及破坏形态的影响。结果表明：水泥–石英砂–石膏试件的抗压强度随水膏比的增加而增大，随砂胶比的增加而减小；砂胶比对试件抗压强度的影响更为显著，砂胶比与水膏比分别为0.33，0.75，1和0.5，1，2时，试件抗压强度由23.19 MPa降至19.14 MPa；同种类岩石材料试件随水膏比增加峰值破坏时间提前，试件内部损伤程度加剧，水膏比由0.5增大至2，声发射累计振铃计数增大约5.1倍，宏观上表现为裂缝增多；相对石英砂、石膏而言，煤粉会加剧试件裂隙发育程度进而弱化其力学性质，保证配比不变，用煤粉分别代替水泥–石英砂–石膏试件中的石英砂、石膏，试件在峰值破坏时的最大声发射振铃计数分别为替换前的1.5和2倍，表面由较规整的裂缝变为更加发育贯通的裂缝；试件破坏后裂缝在其表面两侧呈反拱形分布，为X状共轭斜面剪切破坏，最大主应变较大值位于试件裂缝处，试件表面产生裂缝情况与声发射监测数据描述现象基本吻合。

	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

关键词 ：岩石力学, 类岩石材料, 单轴压缩, 声发射, 全场应变测量系统, 裂隙扩展, 破坏形态

Abstract：Due to the difficulty of obtaining large size real cores in the well and the limited number，the analog method is usually used to make rock-like material specimens in the laboratory to simulate the actual coal rock，so as to carry out the hydraulic fracturing test. In order to accurately explore the mechanical properties of rock-like material specimens，cement，quartz sand，plaster，and coal powder were used as raw materials to cast specimens with different combinations and ratios. Through uniaxial compression test to explore the effects of cement-plaster ratio，sand-binder ratio and coal powder on the mechanical properties and destruction form of the specimens. The results show that the compressive strength of cement-quartz sand-plaster specimen increases with the increase of cement-plaster ratio，and decreases with the increase of sand-binder ratio；The sand-binder ratio has a more significant effect on the compressive strength of the specimen. When the sand-binder ratio and the cement-plaster ratio are 0.33，0.75，1 and 0.5，1，and 2，respectively，the specimen compressive strength decreases from 23.19 MPa to 19.14 MPa；The peak failure time of the same type of rock-like material specimens is advanced with the increase of the cement-plaster ratio，and the internal damage degree of the specimen intensifies. The cement-plaster ratio increases from 0.5 to 2，and the acoustic emission ringing count increases by about 5.1 times，macroscopically，it is manifested as increased cracks in the specimen，Compared with quartz sand and plaster，Coal powder will aggravate the development of cracks in the specimen and weaken its mechanical properties，so as to ensure that the ratio remains unchanged，and replacing quartz sand and plaster in cement-quartz sand-plaster specimens with coal powder，the maximum acoustic emission ringing count of the specimen at peak failure is 1.5 times and 2 times that before replacement，respectively，and the surface changes from more regular cracks to more developed through cracks；After the specimen is damaged，the cracks are distributed in reverse arches on both sides of the specimen surface，which is the X-shaped conjugate inclined plane shear failure，and the maximum principal strain is located at the crack of the specimen，which the cracks on the surface of the specimen are basically consistent with the phenomenon described by the acoustic emission monitoring data.

Key words： rock mechanics rock-like material uniaxial compression acoustic emission full field strain measurement system fissure expansion destruction form

引用本文:

冯国瑞1，2，3，4，樊一江1，2，3，4，王朋飞1，2，3，4，郭军1，2，3，4，文晓泽1，2，3，4，. 不同材料组合及配比下类岩石试件单轴压缩损伤破坏过程分析[J]. 岩石力学与工程学报, 2023, 42(S1): 3377-3390.
FENG Gourui1，2，3，4，FAN Yijiang1，2，3，4，WANG Pengfei1，2，3，4，GUO Jun1，2，3，4，WEN Xiaoze1，2，3，4，QIAN Ruipeng1，2，3，4，ZHU Linjun1，2，3，4，ZHANG Pengfei1，2，3，4. Analysis of damage and failure process of rock-like specimens under uniaxial compression with different material combinations and ratios. , 2023, 42(S1): 3377-3390.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2022.0303 或 http://rockmech.whrsm.ac.cn/CN/Y2023/V42/IS1/3377

[6]	黄炳香，赵兴龙，陈树亮，等. 坚硬顶板水压致裂控制理论与成套技术[J]. 岩石力学与工程学报，2017，36(12)：2 954-2 970. (HUANG Bingxiang，ZHAO Xinglong，CHEN Shuliang，et al. Theory and technology of controlling hard roof with hydraulic fracturing in underground mining[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(12)：2 954-2 970.(in Chinese))
[16]	鞠杨，任张瑜，郑江韬，等. 岩石灾变非连续结构与多物理场效应的透明解析与透明推演[J]. 煤炭学报，2022，47(1)：210-232.(JU Yang，REN Zhangyu，ZHENG Jiangtao，et al. Transparentized solutions and interpretation for the effects of discontinuous structures and multiphysics on rock failure[J]. Journal of China Coal Society，2022，47(1)：210-232.(in Chinese))
[26]	孔令强，孙景民. 模拟煤体的相似材料配比试验研究[J]. 露天采矿技术，2007，(4)：33-34.(KONG Lingqiang，SUN Jingmin. Study of the ratio of similar materials for simulating coal[J]. Opencast Mining Technology，2007，(4)：33-34.(in Chinese))
[36]	夏冬，杨天鸿，徐涛，等. 浸水时间对饱水岩石损伤破坏过程中声发射特征影响的试验[J]. 煤炭学报，2015，40(增2)：337-345.(XIA Dong，YANG Tianhong，XU Tao，et al. Experimental study on AE properties during the damage process of water-saturated rock specimens based on time effect[J]. Journal of China Coal Society，2015，40(Supp.2)：337-345.(in Chinese))
[32]	蔺海晓，杜春志. 煤岩拟三轴水力压裂实验研究[J]. 煤炭学报，2011，36(11)：1 801-1 805.(LIN Haixiao，DU Chunzhi. Experimental research on the quasi three-axis hydraulic fracturing of coal[J]. Journal of China Coal Society，2011，36(11)：1 801-1 805.(in Chinese))
[2]	冯国瑞，白锦文，史旭东，等. 遗留煤柱群链式失稳的关键柱理论及其应用展望[J]. 煤炭学报，2021，46(1)：164-179.(FENG Guorui，BAI Jinwen，SHI Xudong，et al. Key pillar theory in the chain failure of residual coal pillars and its application prospect[J]. Journal of China Coal Society，2021，46(1)：164-179.(in Chinese))
[5]	刘文静，李刚，梁少剑，等. 特厚煤层坚硬顶板水力压裂控制技术研究[J]. 煤炭工程，2021，53(11)：67-72.(LIU Wenjing，LI Gang，LIANG Shaojian，et al. Control technology of hard roof hydraulic fracturing in extra-thick coal seam[J]. Coal Engineering，2021，53(11)：67-72.(in Chinese))
[7]	邓广哲，王世斌，黄炳香. 煤岩水压裂缝扩展行为特性研究[J]. 岩石力学与工程学报，2004，23(20)：3 489-3 493.(DENG Guangzhe，WANG Shibin，HUANG Bingxiang. Research on behavior character of crack development induced by hydraulic fracturing in coal- rockmass[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(20)：3 489-3 493.(in Chinese))
[10]	衡帅，杨春和，郭印同，等. 层理对页岩水力裂缝扩展的影响研究[J]. 岩石力学与工程学报，2015，34(2)：228-237.(HENG Shuai，YANG Chunhe，GUO Yintong，et al. Influence of bedding on planes hydraulic fractures Propagation in shale formations[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(2)：228-237.(in Chinese))
[12]	张帆，马耕，冯丹. 大尺寸真三轴煤岩水力压裂模拟试验与裂缝扩展分析[J]. 岩土力学，2019，40(5)：1 890-1 897.(ZHANG Fan，MA Geng，FENG Dan. Hydraulic fracturing simulation test and fracture propagation analysis of large-scale coal rock under true triaxial conditions[J]. Rock and Soil Mechanics，2019，40(5)：1 890-1 897.(in Chinese))
[15]	ANDRA N，CHRIS M，DEREK E，et al. Healing of simulated fault gouges aided by pressure solution：Results from rock analogue experiments[J]. Journal of Geophysical Research Solid Earth，2008，113(B4)：1-15.
[8]	石欣雨，文国军，白江浩，等. 煤岩水力压裂裂缝扩展物理模拟实验[J]. 煤炭学报，2016，41(5)：1 145-1 151.(SHI Xinyu，WEN Guojun，BAI Jianghao，et al. A physical simulation experiment on fracture propagation of coal petrography in hydraulic fracturing[J]. Journal of China Coal Society，2016，41(5)：1 145-1 151.(in Chinese))
[17]	付世豪，侯冰，夏阳，等. 多岩性组合层状储层一体化压裂裂缝扩展试验研究[J]. 煤炭学报，2021，46(增1)：377-384.(FU Shihao，HOU Bing，XIA Yang，et al. Experimental research on hydraulic fracture propagation in integrated fracturing for layered formation with multi-lithology combination[J]. Journal of China Coal Society，2021，46(Supp.1)：377-384.(in Chinese))
[18]	洛锋，杨本生，郝彬彬，等. 相似材料单轴压缩力学性能及强度误差来源分析[J]. 采矿与安全工程学报，2013，30(1)：93-99.(LUO Feng，YANG Bensheng，HAO Binbin，et al. Mechanical properties of similar material under uniaxial compression and the strength error sources[J]. Journal of Mining and Safety Engineering，2013，30(1)：93-99.(in Chinese))
[20]	刘永莉，周文佐，郭斌，等. 相似模型实验中泥灰岩相似材料研究[J]. 岩石力学与工程学报，2020，39(增1)：2 795-2 803.(LIU Yongli，ZHOU Wenzuo，GUO Bin，et al. Study on marl similar materials in similar simulation test[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(Supp.1)：2 795-2 803.(in Chinese))
[22]	EINSTEIN H H，VENEZIANO D，BAECHER G B，et al. The effect of discontinuity persistence on rock slope stability[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1983，20(5)：227-236.
[25]	许林峰，张向阳，王鸿儒. 基于量纲分析的岩石相似材料配比研究[J]. 煤矿安全，2019，50(3)：44-48.(XU Linfeng，ZHANG Xiangyang，WANG Hongru. Study on proportion of rock similar materials based on dimensional analysis[J]. Safety in Coal Mines，2019，50(3)：44-48.(in Chinese))
[27]	刘晓云，叶义成，王其虎，等. 单轴压缩下不同强度组合复合岩体相似材料试件力学特性研究[J]. 岩土力学，2017，38(增2)：183-190.(LIU Xiaoyun，YE Yicheng，WANG Qihu，et al. Mechanical properties of similar material specimens of composite rock masses with different strengths under uniaxial compression[J]. Rock and Soil Mechanics，2017，38(Supp.2)：183-190.(in Chinese))
[28]	王其洲，叶海旺，李宁，等. 煤系软岩相似模拟材料配比实验及其强度变化规律[J]. 实验技术与管理，2021，38(9)：77-82. (WANG Qizhou，YE Haiwang，LI Ning，et al. Proportioning experiment and strength variation law of similar simulation materials for soft rock of coal measures[J]. Experimental Technology and Management，2021，38(9)：77-82.(in Chinese))
[30]	杜春志. 煤层水压致裂理论及应用研究[博士学位论文][D]. 徐州：中国矿业大学，2008.(DU Chunzhi. Study on theoretics of hydraulic fracturing in coal bed and its applications[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2008.(in Chinese))
[35]	陈江湛，曹函，孙平贺，等. 三轴加载下煤岩脉冲水力压裂扩缝机制研究[J]. 岩土力学，2017，38(4)：1 023-1 031.(CHEN Jiangzhan，CAO Han，SUN Pinghe，et al. Experimental study of impact of crustal stress on fracture pressure and hydraulic fracture[J]. Rock and Soil Mechanics，2017，38(4)：1 023-1 031.(in Chinese))
[37]	冯国瑞，文晓泽，郭军，等. 含水率对煤样声发射特征和碎块分布特征影响的试验研究[J]. 中南大学学报：自然科学版，2021，52(8)：2 910-2 918.(FENG Gourui，WEN Xiaoze，GUO Jun，et al. Study on influence of moisture content on coal sample AE properties and fragment distribution characteristics[J]. Journal of Central South University：Science and Technology，2021，52(8)：2 910-2 918.(in Chinese))
[38]	颜志丰. 山西晋城地区煤岩力学性质及煤储层压裂模拟研究[博士学位论文][D]. 北京：中国地质大学(北京)，2009.(YAN Zhifeng. Research of the coal mechanical properties and coal reservoir fracturing simulation in Jincheng district，Shanxi Province[Ph. D. Thesis][D]. Beijing：China University of Geosciences(Beijing)，2009.(in Chinese))
[1]	冯国瑞，张玉江，白锦文，等. 遗留煤炭资源开采岩层控制研究进展与发展前景[J]. 中国科学基金，2021，35(6)：924-932.(FENG Guorui，ZAHNG Yujiang，BAI Jinwen，et al. Research progress and development prospects of rock strata control in the mining of residual coal resources[J]. Bulletin of National Natural Science Foundation of China，2021，35(6)：924-932.(in Chinese))
[9]	范铁刚，张广清. 注液速率及压裂液黏度对煤层水力裂缝形态的影响[J]. 中国石油大学学报：自然科学版，2014，38(4)：117-123.(FAN Tiegang，ZHANG Guangqing. Influence of injection rate and fracturing fluid viscosity on hydraulic fracture geometry in coal[J]. Journal of China University of Petroleum：Natural Science，2014，38(4)：117-123.(in Chinese))
[11]	姜婷婷，张建华，黄刚. 煤岩水力压裂裂缝扩展形态试验研究[J]. 岩土力学，2018，39(10)：3 677-3 684.(JIANG Tingting，ZHANG Jianhua，HUANG Gang. Experimental study of fracture geometry during hydraulic fracturing in coal[J]. Rock and Soil Mechanics，2018，39(10)：3 677-3 684.(in Chinese))
[19]	陈安敏，顾金才，沈俊，等. 地质力学模型试验技术应用研究[J]. 岩石力学与工程学报，2004，23(22)：3 785-3 789.(CHEN Anmin，GU Jincai，SHEN Jun，et al. Application study on the geomechanical model experiment techniques[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(22)：3 785-3 789.(in Chinese))
[21]	康向涛，黄滚，邓博知，等. 模拟原煤的相似材料试验研究[J]. 东北大学学报：自然科学版，2015，36(1)：138-142.(KANG Xiangtao，HUANG Gun，DENG Bozhi，et al. Experimental study on similar material for simulating raw coal[J]. Journal of Northeastern University：Natural Science，2015，36(1)：138-142.(in Chinese))
[3]	冯国瑞，张玉江，戚庭野，等. 中国遗煤开采现状及研究进展[J]. 煤炭学报，2020，45(1)：151-159.(FENG Guorui，ZAHNG Yujiang，QI Tingye，et al. Status and research progress for residual coal mining in China[J]. Journal of China Coal Society，2020，45(1)：151-159.(in Chinese))
[29]	姚琦，冯涛，王卫军，等. 矿山开采相似材料配比及力学试验研究[J]. 安全与环境学报，2017，17(6)：2 129-2 134.(YAO Qi，FENG Tao，WANG Weijun，et al. Mine mining similar material ratio and mechanical test research[J]. Journal of Safety and Environment，2017，17(6)：2 129-2 134.(in Chinese))
[31]	黄炳香. 煤岩体水力致裂弱化的理论与应用研究[博士学位论文][D]. 徐州：中国矿业大学，2009.(HUANG Bingxiang. Research on theroy and application of hydraulic fracture weakening for coal-rock mass[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2009.(in Chinese))
[4]	黄炳香，程庆迎，刘长友，等. 煤岩体水力致裂理论及其工艺技术框架[J]. 采矿与安全工程学报，2011，28(2)：167-173.(HUANG Bingxiang，CHENG Qingying，LIU Changyou，et al. Hydraulic fracturing theory of coal-rock mass and its technical framework[J]. Journal of Mining and Safety Engineering，2011，28(2)：167-173.(in Chinese))
[34]	张帆，马耕，刘晓，等. 煤岩水力压裂起裂压力和裂缝扩展机制实验研究[J]. 煤田地质与勘探，2017，45(6)：84-89.(ZHANG Fan，MA Geng，LIU Xiao，et al. Experimental study on initiation pressure and mechanism of fracture propagation of hydraulic fracturing in coal and rock mass[J]. Coal Geology and Exploration，2017，45(6)：84-89.(in Chinese))
[13]	考佳玮，金衍，付卫能，等. 注液方式对深层页岩裂缝形态影响实验研究[J]. 地下空间与工程学报，2019，15(1)：32-38.(KAO Jiawei，JIN Yan，FU Weineng，et al. Experiments research on the influence of injection method on hydraulic fracture morphology of deep shale[J]. Chinese Journal of Underground Space and Engineering，2019，15(1)：32-38.(in Chinese))
[39]	左建平，谢和平，吴爱民，等. 深部煤岩单体及组合体的破坏机制与力学特性研究[J]. 岩石力学与工程学报，2011，30(1)：84-92.(ZUO Jianping，XIE Heping，WU Aimin，et al. Investigation on failure mechanisms and mechanical behaviors of deep coal-rock single body and combined body[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(1)：84-92.(in Chinese))
[14]	TIEN Y M，KUO M C，JUANG C H，et al. An experimental investigation of the failure mechanism of simulated transversely isotropic rocks[J]. International Journal of Rock Mechanics and Mining Sciences，2006，43(8)：1 163-1 181.
[49]	李天斌，陈子全，陈国庆，等. 不同含水率作用下砂岩的能量机制研究[J]. 岩土力学，2015，36(增2)：229-236.(LI Tianbin，CHEN Ziquan，CHEN Guoqing，et al. An experimental study of energy mechanism of sandstone with different moisture contents[J]. Rock and Soil Mechanics，2015，36(Supp.2)：229-236.(in Chinese))
[23]	史小萌，刘保国，肖杰. 水泥和石膏胶结相似材料配比的确定方法[J]. 岩土力学，2015，36(5)：1 357-1 362.(SHI Xiaomeng，LIU Baoguo，XIAO Jie. A method for determining the ratio of similar materials with cement and plaster as bonding agents[J]. Rock and Soil Mechanics，2015，36(5)：1 357-1 362.(in Chinese))
[40]	吴志刚，康红普，李文洲，等. 不同取样深度对煤体力学性能及变化规律的实验室研究[J]. 煤矿开采，2017，22(5)：1-4.(WU Zhigang，KANG Hongpu，LI Wenzhou，et al. Experimental study of different sampling depth to coal mechanical property and its change rule[J]. Journal of Mining and Strata Control Engineering，2017，22(5)：1-4.(in Chinese))
[24]	耿晓阳，张子新. 砂岩相似材料制作方法研究[J]. 地下空间与工程学报，2015，11(1)：23-28.(GENG Xiaoyang，ZHANG Zixin. Study on preparation methods for similar materials of sandstone[J]. Chinese Journal of Underground Space and Engineering，2015，11(1)：23-28.(in Chinese))
[33]	马耕，张帆，刘晓，等. 地应力对破裂压力和水力裂缝影响的试验研究[J]. 岩土力学，2016，37(增2)：216-222.(MA Geng，ZHANG Fan，LIU Xiao，et al. Experimental study of impact of crustal stress on fracture pressure and hydraulic fracture[J]. Rock and Soil Mechanics，2016，37(Supp.2)：216-222.(in Chinese))
[41]	殷庆立，苏慕珍. 水泥基材料强度影响因素：分析与综述[J]. 硅酸盐通报，1999，(4)：60-63.(YIN Qingli，SU Muzhen. Factors affecting the strength of cement-based materials：analysis and review[J]. Bulletin of the Chinese Ceramic Society，1999，(4)：60-63.(in Chinese))
[43]	郝宪杰，刘继山，魏英楠，等. 2 000 m超深煤系储层力学及声发射特征的围压效应[J]. 中南大学学报：自然科学版，2021，52(8)：2 611-2 621.(HAO Xianjie，LIU Jishan，WEI Yingnan，et al. Effects of confining pressure on mechanical responses and acoustic characteristics of coal gas seams deeper than 2 000 m[J]. Journal of Central South University：Science and Technology，2021，52(8)： 2 611-2 621.(in Chinese))
[44]	王超圣，刘建锋，赵耀威，等. 北山花岗岩张拉力学性质及声发射特征研究[J]. 金属矿山，2022，(1)：178-184.(WANG Chaosheng，LIU Jianfeng，ZHAO Yaowei，et al. Study on tensile and acoustic emission characteristics of Beishan granite[J]. Metal Mine，2022，(1)：178-184.(in Chinese))
[46]	周子龙，李国楠，宁树理，等. 侧向扰动下高应力岩石的声发射特性与破坏机制[J]. 岩石力学与工程学报，2014，33(8)：1 720- 1 728.(ZHOU Zilong，LI Guonan，NING Shuli，et al. Acoustic emission characteristics and failure mechanism of high-stressed rocks under lateral disturbance[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(8)：1 720-1 728.(in Chinese))
[48]	郭育霞，赵永辉，冯国瑞，等. 矸石胶结充填体单轴压缩损伤破坏尺寸效应研究[J]. 岩石力学与工程学报，2021，40(12)：2 434- 2 444.(GUO Yuxia，ZHAO Yonghui，FENG Guorui，et al. Study on damage size effect of cemented gangue backfill body under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(12)：2 434-2 444.(in Chinese))
[50]	蒋景东，陈生水，徐婕，等. 不同含水状态下泥岩的力学性质及能量特征[J]. 煤炭学报，2018，43(8)：2 217-2 224.(JIANG Jingdong，CHEN Shengshui，XU Jie，et al. Mechanical properties and energy characteristics of mudstone under different containing moisture states[J]. Journal of China Coal Society，2018，43(8)： 2 217-2 224.(in Chinese))
[51]	邓绪彪，刘远征，邢矿，等. 基于声发射时空演化的岩石全应力-应变曲线阶段特征分析[J]. 岩石力学与工程学报，2018，37 (增2)：4 086-4 099.(DENG Xubiao，LIU Yuanzheng，XING Kuang，et al. Analysis based on AE space-time evolution characteristics for stage division of whole stress-strain curve of rock[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(Supp.2)：4 086-4 099.(in Chinese))
[53]	杨圣奇，刘相如，李玉寿. 单轴压缩下含孔洞裂隙砂岩力学特性试验分析[J]. 岩石力学与工程学报，2012，31(增2)：3 539-3 546. (YANG Shengqi，LIU Xiangru，LI Yushou. Experimental analysis of mechanical behavior of sandstone containing hole and fissure under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3 539-3 546.(in Chinese))
[54]	XING Y K，HUANG B X，NING E Q，et al. Quasi-static loading rate effects on fracture process zone develop-ment of mixed-mode(I-II) fractures in rock-like mate-rials[J]. Engineering Fracture Mechanics，2020，240：107365.
[56]	MIAO S T，PAN P Z，ZHAO X G，et al. Experimental study on damage and fracture characteristics of beishan granite subjected to high-temperature treatment with DIC and AE techniques[J]. Rock Mechanics and Rock Engineering，2021，54(2)：721-743.
[42]	程爱平，戴舒意，张玉山，等. 胶结充填体损伤演化尺寸效应研究[J]. 岩石力学与工程学报，2019，38(增1)：3 053-3 060. (CHENG Aiping，DAI Shunyi，ZHANG Yushan，et al. Study on size effect of damage evolution of cemented backfill[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(Supp.1)：3 053-3 060.(in Chinese))
[45]	赵康，何志伟，宁富金，等. 不同灰砂配比胶结材料组合体声发射特性[J]. 硅酸盐学报，2021，49(11)：2 462-2 469.(ZHAO Kang，HE Zhiwei，NING Fujin，et al. Acoustic emission characteristics of cementitious material with different cement-tailing ratio[J]. Journal of the Chinese Ceramic Society，2021，49(11)：2 462-2 469.(in Chinese))
[47]	秦虎，黄滚，王维忠. 不同含水率煤岩受压变形破坏全过程声发射特征试验研究[J]. 岩石力学与工程学报，2012，31(6)：1 115- 1 120.(QIN Hu，HUANG Gun，WANG Weizhong. Experimental study of acoustic emission characteristics of coal samples with different moisture contents in process of compression deformation and failure[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(6)：1 115-1 120.(in Chinese))
[57]	辛亚军，姬红英. 不同配比大尺度相似模拟试件单轴压缩实验研究[J]. 河南理工大学学报：自然科学版，2016，35(1)：30-36.(XIN Yajun，JI Hongying. Study on uniaxial compression experiments for different ratio and large-scale similar simulated specimens[J]. Journal of Henan Polytechnic University：Natural Science，2016，35(1)：30-36.(in Chinese))
[52]	刘建坡，徐世达，李元辉，等. 预制孔岩石破坏过程中的声发射时空演化特征研究[J]. 岩石力学与工程学报，2012，31(12)：2 538- 2 547.(LIU Jianpo，XU Shida，LI Yuanhui，et al. Studies of AE time-space evolution characteristics during failure process of rock specimens with prefabricated holes[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(12)：2 538-2 547.(in Chinese))
[55]	ZHAO C，ZHOU Y M，ZHAO C F，et al. Cracking processes and coalescence modes in rock-like specimens with two parallel pre-existing cracks[J]. Rock Mechanics and Rock Engineering，2018，51(11)：3 377-3 393.