层理性页岩断裂韧性的加载速率效应试验研究

doi:10.13722/j.cnki.jrme.2017.1421

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (547 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为探究不同加载速率对层理性页岩的I型断裂韧性影响规律，对3种类型的页岩试件(Crack-arrester型、Crack-splitter型、Crack-divider型)进行三点弯曲的断裂韧性试验。结果表明：(1) 页岩的I型断裂韧性随加载速率的变化规律为正相关关系，即随着加载速率增加，I型断裂韧性逐渐增大。加载速率对岩石断裂韧性的影响主要是岩石内部损伤发展和演化的作用时间。(2) 层理方向对页岩的I型断裂韧性有一定影响，相同基质的层状岩石，由于其层理引起的结构方向上的差异，会造成抵抗断裂能力的不同。(3) Crack-divider型的断裂韧性最大，Crack-splitter型的断裂韧性最小，Crack-arrester型的断裂韧性居于前两者之间。主要是由于页岩层理面胶结程度好，基质体完整且强度较高。(4) 对于层理面胶结程度与基质体完整性较好的页岩，其Crack-splitter型与Crack- splitter型的I型断裂韧性相差较小。(5) 层理方向对岩石I型断裂韧性大小的影响与其UCS值测试相应证，可以用垂直层理和平行层理的UCS值相对大小来评估Crack-arrester型和Crack-divider型的I型断裂韧性的相对大小。

	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
	吕有厂1
	2

关键词 ：岩石力学, 断裂韧性, 加载速率, 页岩, 层理方向, 半圆盘三点弯曲

Abstract：In order to explore the influence of different loading rates on toughness of mode I fracture of layered shale，three types of shale specimens(Crack-arrester，Crack-splitter，Crack-divider) were tested for fracture toughness by using three point bending test. The toughness of mode I fracture of shale is positively correlated with the loading rate, i.e.，the toughness of mode I fracture increases gradually with the increasing of loading rate. The effect of loading rate on the fracture toughness of rock is mainly the duration of action of the damage development in the rock. The bedding direction has certain influence on the toughness of mode I fracture of shale. Layered rocks of the same matrix，due to the difference in structural orientation caused by its bedding，can result in differences in the resistance to fracturing. The Crack-divider type has the highest fracture toughness，the Crack-splitter type has the lowest fracture toughness，and the fracture toughness of Crack-arrester type is in between. This is mainly due to that the shale bedding surface is not obvious，the matrix body is complete and has high strength. For the shale with less obvious bedding and better integrity，the toughness of mode I fracture of Crack-splitter type and Crack-splitter type has little difference. The effect of layering direction on the toughness of mode I fracture of rocks corresponding to UCS Test. The relative toughness magnitude of mode I fracture of Crack-arrester and Crack-divider types can be determined by the relative values of UCS for vertical and parallel bedding.

Key words： rock mechanics mode I fracture toughness loading rate shale bedding direction semi-circular bend

引用本文:

吕有厂1，2. 层理性页岩断裂韧性的加载速率效应试验研究[J]. 岩石力学与工程学报, 2018, 37(6): 1359-1370.
LYU Youchang1，2. Effect of bedding plane direction on fracture toughness of shale under different loading rates. , 2018, 37(6): 1359-1370.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2017.1421 或 http://www.rockmech.org/CN/Y2018/V37/I6/1359

[1]	DAN J. Evaluation of hydrocarbon generation and storage in the Barnett shale[R]. Texas：Humble Geochemical Services Division，2004.
[3]	侯鹏，高峰，杨玉贵，等. 黑色页岩巴西劈裂破坏的层理效应研究及能量分析[J]. 岩土工程学报，2016，38(5)：930-937.(HOU Peng，GAO Feng，YANG Yugui，et al. Effect of bedding orientation on failure of black shale under Brazilian tests and energy analysis[J]. Chinese Journal of Geotechnical Engineering，2016，38(5)：930-937.(in Chinese))
[7]	杜梦萍，潘鹏志，纪维伟，等. 炭质页岩巴西劈裂载荷下破坏过程的时空特征研究[J]. 岩土力学，2016，37(12)：3 437-3 446.(DU Mengping，PAN Pengzhi，JI Weiwei，et al，Time-space laws of failure process of carbonaceous shale in Brazilian split test[J]. Rock and Soil Mechanics，2016，37(12)：3 437-3 446.(in Chinese))
[9]	陈勉，张艳，金洐，等. 加载速率对不同岩性岩石Kaiser效应影响的试验研究[J]. 岩石力学与工程学报，2009，28(增1)：2 599-2 603.(CHEN Mian，ZHANG Yan，JIN Yan，et al. Experimental study of influence of loading rate on Kaiser effect of different lithological rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(Supp.1)：2 599-2 603.(in Chinese))
[10]	曹安业，井广成，窦林名，等. 不同加载速率下岩样损伤演化的声发射特征研究[J]. 采矿与安全工程学报，2015，32(6)：923-928.(CAO Anye，JING Guangcheng，DOU Linming，et al. Damage evolution law based on acoustic emission of sandy mudstone under different uniaxial loading rate[J]. Journal of Mining and Safety Engineering，2015，32(6)：923-928.(in Chinese))
[13]	ZUO J P，XIE H P，DAI F，et al. Three-point bending test investigation of the fracture behavior of siltstone after thermal treatment[J]. International Journal of Rock Mechanics and Mining Sciences，2014，70(9)：133-143.
[5]	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 planes on hydraulic fracture propagation in shale formations[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(2)：228-237.(in Chinese))
[15]	ZHANG Q B，ZHAO J. Effect of loading rate on fracture toughness and failure micromechanisms in marble[J]. Engineering Fracture Mechanics，2013，102(2)：288-309.
[2]	LEE Y K，PIETRUSZCZAK S. Application of critical plane approach to the prediction of strength anisotropy in transversely isotropic rock masses[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(4)：513-523.
[4]	杨志鹏，何柏，谢凌志，等. 基于巴西劈裂试验的页岩强度与破坏模式研究[J]. 岩土工程学报，2015，36(12)：3 447-3 456.(YANG Zhipeng，HE Bai，XIE Lingzhi，et al. Strength and failure modes of shale based on Brazilian test[J]. Chinese Journal of Geotechnical Engineering，2015，36(12)：3 447-3 456.(in Chinese))
[6]	衡帅，杨春和，曾义金，等. 页岩水力压裂裂缝形态的试验研究[J]. 岩土工程学报，2014，36(7)：1 243-1 251.(HENG Shuai，YANG Chunhe，ZENG Yijin，et al. Experimental study on the hydraulic fracture geometry of shale[J]. Chinese Journal of Geotechnical Engineering，2014，36(7)：1 243-1 251.(in Chinese))
[11]	尹乾，靖洪文，苏海健，等. 含纵向裂隙砂岩的强度劣化与加载速率效应[J]. 采矿与安全工程学报，2016，33(1)：128-133.(YIN Qian，JING Hongwen，SU Haijian，et al. Strength degradation and loading rate effect of sandstone containing a longitudinal fissure[J]. Journal of Mining and Safety Engineering，2016，33(1)：128-133.(in Chinese))
[17]	GAN F，YONG K，TAO M，et al. The influence of temperature on mode I fracture toughness and fracture characteristics of sandstone[J]. Rock Mechanics and Rock Engineering，2017，50(8)：2 007-2 019.
[19]	张财贵，周妍，杨井瑞，等. 用SHPB径向冲击边裂纹平台圆环(ECFR)的动态断裂实验[J]. 煤炭学报，2015，40(5)：1 037-1 046. (ZHANG Caigui，ZHOU Yan，YANG Jingrui，et al. Dynamic fracture test of edge cracked flattened ring(ECFR) diametrically impacted with SHPB[J]. Journal of China Coal Society，2015，40(5)：1 037-1 046. (in Chinese))
[20]	崔智丽，宫能平，经来旺. 岩石非理想裂纹圆盘试件动态断裂韧性测试的有限元分析及试验研究[J]. 岩土力学，2015，36(3)：694-702.(CUI Zhili，GONG Nengping，JING Laiwang，et al. Experiment and finite element analysis of rock dynamic fracture toughness test on nonideal crack disc specimens[J]. Rock and Soil Mechanics，2015，36(3)：694-702.(in Chinese))
[21]	宫凤强，陆道辉，李夕兵，等. 动力扰动下预静载硬岩断裂的增韧和减韧效应[J]. 岩石力学与工程学报，2014，33(9)：1 905-1 915. (GONG Fengqiang，LU Daohui，LI Xibing，et al. Toughness increasing or decreasing effect of hard rock fracture with pre-static loading under dynamic disturbance[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(9)：1 905-1 915.(in Chinese))
[23]	龚爽，赵毅鑫. 层理对煤岩动态断裂及能量耗散规律影响的试验研究[J]. 岩石力学与工程学报，2017，36(增2)：3 721-3 731. (GONG Shuang，ZHAO Yixin. Effects of bedding on fracture characteristics and energy dissipation of coal under impact loading[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(Supp.2)：3 721-3 731.(in Chinese))
[27]	杨井瑞，张财贵，周妍，等. 用 CSTBD 试样确定砂岩的动态起裂和扩展韧度[J]. 爆炸与冲击，2014，34(3)：264-271.(YANG Jingrui，ZHANG Caigui，ZHOU Yan，et al. Determination of dynamic initiation toughness of sandstone using CSTBD specimens[J]. Explosion and Shock Waves，2014，34(3)：264-271.(in Chinese))
[29]	李彦伟，姜耀东，杨英明，等. 煤单轴抗压强度特性的加载速率效应研究[J]. 采矿与安全工程学报，2016，33(4)：754-760.(LI Yanwei，JIANG Yaodong，YANG Yingming，et al. Research on loading rate effect of uniaxial compressive strength of coal[J]. Journal of Mining and Safety Engineering，2016，33(4)：754-760.(in Chines))
[30]	毕井龙. 热-力耦合作用下油页岩断裂特性实验研究[硕士学位论文][D]. 太原：太原理工大学，2016.(BI Jinglong. Experimental study on fracture characteristics of oil shale under thermal-mechanical coupling field[M. S. Thesis][D]. Taiyuan：Taiyuan University of Technology，2016.(in Chinese))
[31]	武鹏飞，梁卫国，曹梦涛，等. 煤体在不同层理方位I型断裂特征试验研究[J]. 地下空间与工程学报，2017，13(增2)：538-545.(WU Pengfei，LIANG Weiguo，CAO Mengtao，et al. Experimental investigation on model I fracture characteristics of coal in different stratification orientation[J]. Chinese Journal of Underground Space and Engineering，2017，13(Supp.2)：538-545.(in Chinese))
[8]	杨仕教，曾晟，王和龙. 加载速率对石灰岩力学效应的试验研究[J]. 岩土工程学报，2005，27(7)：786-788.(YANG Shijiao，ZENG Sheng，WANG Helong. Experimental research on mechanical effects of loading rates on limestone[J]. Chinese Journal of Geotechnical Engineering，2005，27(7)：786-788.(in Chinese))
[12]	WONG R H C，CHAU K T，TANG C A，et al. Analysis of crack coalescence in rock-like materials containing three flaws part I：experimental approach[J]. International Journal of Rock Mechanics and Mining Sciences，2001，38(7)：909-924.
[14]	陈荣，郭弦，卢芳云，等. Stanstead 花岗岩动态断裂性能[J]. 岩石力学与工程学报，2010，29(2)：375-380.(CHEN Rong，GUO Xian，LU Fangyun，et al. Research on dynamic fracture behaviors of Stanstead granite[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(2)：375-380.(in Chinese))
[16]	BANKIM M，ASHUTOSH T，VIKRAM V，et al. Effects of strain rate on fracture toughness and energy release rate of gas shales[J]. Engineering Geology，2016，218(23)：39-49.
[18]	杨健锋，梁卫国，陈跃都，等. 不同水损伤程度下泥岩断裂力学特性试验研究[J]. 岩石力学与工程学报，2017，36(10)：2 431-2 440. (YANG Jianfeng，LIANG Weiguo，CHEN Yuedu，et al. Experiment research on the fracture mechanical characteristics of mudstone with different degree of water damage[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(10)：2 431-2 440.(in Chinese))
[22]	邓华锋，李建林，王宇，等. 砂岩I型断裂韧度及其与强度参数的相关性研究[J]. 岩土力学，2012，33(12)：3 585-3 591.(DENG Huafeng，LI Jianlin，WANG Yu，et al. Study on the mode-I fracture toughness and its correlation with strength parameters of sandstone[J]. Rock and Soil Mechanics，2012，33(12)：3 585-3 591.(in Chinese))
[24]	陈建国，邓金根，袁俊亮，等. 页岩储层I型和II型断裂韧性评价方法研究[J]. 岩石力学与工程学报，2015，34(6)：1 101-1 105. (CHEN Jianguo，DENG Jingen，YUAN Junliang，et al. Determination of fracture toughness of modes I and II of shale formation[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(6)：1 101- 1 105.(in Chinese))
[25]	KURUPPU M D，OBARA Y，AYATOLLAHI M R，et al. ISRM-suggested method for determining the mode I static fracture toughness using semi-circular bend specimen[J]. Rock Mechanics and Rock Engineering，2014，47(1)：267-274.
[26]	KATAOKA M，OBARA Y，KURUPPU M. Estimation of fracture toughness of anisotropic rocks by semi-circular bend(SCB) tests under water vapor pressure[J]. Rock Mechanics and Rock Engineering，2015，48(4)：1 353-1 367.
[28]	DAI F，XIA K W. Laboratory measurements of the rate dependence of the fracture toughness anisotropy of Barre granite[J]. International Journal of Rock Mechanics and Mining Sciences，2013，60(2)：57-65.
[32]	LI H X，XIAO X R. An approach on the mode-I fracture toughness anisotropy for materials with layered microstructures[J]. Engineering Fracture Mechanics，1995，52(4)：671-683.