节理分布形式对交叉节理岩体动态力学特性与破坏模式影响研究

doi:10.13722/j.cnki.jrme.2022.1303

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

Download: PDF (5608 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to reveal the influence mechanism of intersecting joints on the dynamic strength and failure mode of rock mass，the dynamic mechanical behavior of rock mass with intersecting joints under different joint distribution forms was studied，considering the angle，penetration degree of intersecting joints，penetration degree of main joints and strain rate，etc. Influenced by the parameters，the split Hopkinson pressure bar(SHPB) impact test was carried out，and a high-speed camera was set to record the failure process of the sample in real time. The dynamic mechanical properties，energy dissipation and crack initiation-failure laws of the cross-jointed rock mass were analyzed. The research results show that：(1) with the increase of joint angle and(main) joint penetration，the dynamic compressive strength and elastic modulus of cross-jointed rock mass show a downward trend，and there is an obvious rate correlation. (2) The main cracks of the sample always occur along the main joint surface，and change from wing cracks to wing cracks and coplanar cracks with the increase of penetration. The crack initiation and connection modes are different in different joint distribution forms. The main three failure modes are splitting tensile failure along the loading direction，tensile failure along the prefabricated joint surface and tensile-shear composite failure along the prefabricated joint surface. (3) With the increase of the penetration and included angle of the main joints，the length of the joint surface of the incident wave front increases，the transmission energy through the joint surface decreases，and the damage degree of the sample increases，resulting in a sudden increase of the dissipated energy.

Key words： rock mechanics cross-joint rock split Hopkinson pressure bar(SHPB) energy dissipation failure mode

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.1303 OR https://rockmech.whrsm.ac.cn/EN/Y2024/V43/I1/90

[1]	陈国庆，陈毅，孙祥，等. 开放型岩桥裂纹贯通机制及脆性破坏特征研究[J]. 岩土工程学报，2020，42(5)：908-915.(CHEN Guoqing，CHEN Yi，SUN Xiang，et al. Crack coalescence and brittle failure characteristics of open rock bridges[J]. Chinese Journal of Geotechnical Engineering，2020，42(5)：908-915.(in Chinese))
[2]	LIU L，LI H，LI X，et al. Underlying mechanisms of crack initiation for granitic rocks containing a single pre-existing flaw：insights from digital image correlation(DIC) analysis[J]. Rock Mechanics and Rock Engineering，2020，54(2)：857-873.
[3]	谢和平，鞠杨，黎立云. 基于能量耗散与释放原理的岩石强度与整体破坏准则[J]. 岩石力学与工程学报，2005，24(17)：3 003-3 010. (XIE Heping，JU Yang，LI Liyun. Criteria for strength and structural failure of rocks based on energy dissipation and energy release principles[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(17)：3 003-3 010.(in Chinese)
[4]	ZHOU Z，ZHAO Y，JIANG Y，et al. Dynamic behavior of rock during its post failure stage in SHPB tests[J]. Transactions of Nonferrous Metals Society of China，2017，27(1)：184-196.
[5]	QIU J，LI D，LI X，et al. Dynamic fracturing behavior of layered rock with different inclination angles in SHPB tests[J]. Shock and Vibration，2017，2017(8)：7687802
[6]	YI L，GANG W，XINPING L，et al. Analysis of energy dissipation and crack evolution law of sandstone under impact load[J]. International Journal of Rock Mechanics and Mining Sciences，2020，132：104359.
[7]	WANG G，LUO Y，LI X，et al. Study on dynamic mechanical properties and meso-damage mechanism of jointed rock under impact load[J]. European Journal of Environmental and Civil Engineering，2022，26(3)：1 141-1 157.
[8]	王奇智，夏开文，吴帮标，等. 预制平行双节理类岩石材料板动态破坏试验研究[J]. 天津大学学报：自然科学与工程技术版，2019，52(10)：1 099-1 108.(WANG Qizhi，XIA Kaiwen，WU Bangbiao，et al. Dynamic failure of simulated rock mass plate containing two parallel cracks[J]. Journal of Tianjin University：Science and Technology，2019，52(10)：1 099-1 108.(in Chinese))
[9]	WANG X，ZHU Z，ZHOU L，et al. Study on the effects of joints orientation and strength on failure behavior in shale specimen under impact loads[J]. International Journal of Impact Engineering，2022，163：104162.
[10]	李地元，韩震宇，孙小磊，等. 含预制裂隙大理岩SHPB动态力学破坏特性试验研究[J]. 岩石力学与工程学报，2017，36(12)：2 872-2 883.(LI Diyuan，HAN Zhenyu，SUN Xiaolei，et al. Characteristics of dynamic failure of marble with artificial flaws under split Hopkinson pressure bar tests[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(12)：2 872-2 883.(in Chinese))
[11]	潘博，汪旭光，徐振洋，等. 节理角度对岩石材料的动态响应影响研究[J]. 岩石力学与工程学报，2021，40(3)：566-575.(PAN Bo，WANG Xuyang，XU Zhenyang，et al. Research on the effect of joint angle on dynamic responses of rock materials[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(3)：566-575.(in Chinese))
[12]	温森，赵现伟，常玉林，等. 基于SHPB的复合岩样动态压缩破坏能量耗散分析[J]. 应用基础与工程科学学报，2021，29(2)：483-492.(WEN Seng，ZHAO Xianwei，CHANG Yulin，et al. Energy dissipation of dynamic failure of mixed rock specimens subject to SHPB compression[J]. Journal of Basic Science and Engineering，2021，29(2)：483-492.(in Chinese))
[13]	ZOU J P，HU X Y，JIAO Y Y，et al. Dynamic mechanical behaviors of rock's joints quantified by repeated impact loading experiments with digital imagery[J]. Rock Mechanics and Rock Engineering，2022，55(11)：7 035-7 048.
[14]	李成杰，徐颖，张宇婷，等. 冲击荷载下裂隙类煤岩组合体能量演化与分形特征研究[J]. 岩石力学与工程学报，2019，38(11)：2 231-2 241.(LI Chengjie，XU Ying，ZHANG Yuting，et al. Study on energy evolution and fractal characteristics of cracked coal-rock-like combined body under impact loading[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(11)：2 231-2 241.(in Chinese))
[15]	李晓锋，李海波，刘凯，等. 冲击荷载作用下岩石动态力学特性及破裂特征研究[J]. 岩石力学与工程学报，2017，36(10)：2 393-2 405.(LI Xiaofeng，LI Haibo，LIU Kai，et al. Dynamic properties and fracture characteristics of rocks subject to impact loading[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(10)：2 393-2 405.(in Chinese))
[16]	ZOU C J，WONG L N Y，LOO J J，et al. Different mechanical and cracking behaviors of single-flawed brittle gypsum specimens under dynamic and quasi-static loadings[J]. Engineering Geology，2016，201：71-84.
[17]	ZOU C J，WONG L N Y. Experimental studies on cracking processes and failure in marble under dynamic loading[J]. Engineering Geology，2014，173：19-31.
[18]	WU X，ZHANG L，SUN J，et al. Strength characteristics and failure mechanism of granite with cross cracks at different angles based on DIC method[J]. Advances in Materials Science and Engineering，2022，2022：1-9
[19]	王本鑫，金爱兵，孙浩，等. 基于DIC的含不同角度3D打印粗糙交叉节理试样破裂机制研究[J]. 岩土力学，2021，42(2)：439-450. WANG Benxin，JIN Aibing，SUN Hao，et al. Mechanical characteristics and fracture mechanism of 3D printed rock samples with cross joints[J]. Rock and Soil Mechanics，2021，42(2)：439-450.(in Chinese))
[20]	CHANG L F，KONIETZKY H，FRÜEHWIRT T. Strength anisotropy of rock with crossing joints，results of physical and numerical modeling with gypsum models[J]. Rock Mechanics and Rock Engineering，2019，52(7)：2 293-2 317.
[21]	李露露，高永涛，周喻，等. 单轴压缩条件下含三叉裂隙类岩石试样力学特性的细观研究[J]. 岩土力学，2018，39(10)：3 668-3 676. (LI Lulu，GAO Yongtao，ZHOU Yu，et al. Meso-scale modelling mechanical properties of rock-like material containing trident cracks under uniaxial compression[J]. Rock Mechanics and Rock Engineering，2018，39(10)：3 668-3 676.(in Chinese))
[22]	ZHANG Q B，ZHAO J. Determination of mechanical properties and full-field strain measurements of rock material under dynamic loads[J]. International Journal of Rock Mechanics and Mining Sciences，2013，60：423-439.
[23]	宫凤强，王进，李夕兵. 岩石压缩特性的率效应与动态增强因子统一模型[J]. 岩石力学与工程学报，2018，37(7)：1 586-1 595. (GONG Fengqiang，WANG Jin，LI Xibing. The rate effect of compression characteristics and a unified model of dynamic increasing factor for rock materials[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(7)：1 586-1 595.(in Chinese))
[24]	周永强，盛谦，李娜娜，等. 不同应变率下岩石材料强度和模量的动态增强因子模型研究[J]. 岩石力学与工程学报，2020，39(增2)：3 245-3 259.(ZHOU Yongqiang，SHENG Qian，LI Nana，et al. Dynamic increasing factor model for strength and modulus of rock materials at different strain rates[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(Supp.2)：3 245-3 259.(in Chinese))
[25]	GONG F Q，YE H，LUO Y. The effect of high loading rate on the behaviour and mechanical properties of coal-rock combined body[J]. Shock and Vibration，2018，2018：4374530(1-9).