砂岩加载过程中的细观损伤试验研究

doi:10.13722/j.cnki.jrme.2018.1087

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

Download: PDF (1035 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To study the meso-damage characteristics of sedimentary rocks，compression tests were carried out on sandstones under specific high confining pressures using the triaxial compression equipment. Scanning electron microscopy and energy spectrum analyzer were used to investigate micro behaviours of samples after compression，and the image-processing technique was adopted to analyze the meso-damage information of sandstones. The results indicate that，in the case of 30 MPa of the confining pressure，the stress-strain curves exhibit no evident yielding，and the plastic deformation and the meso-damage factor continue to increase and the sandstone strength gradually deteriorates with increasing the axial stress prior to exceeding the uniaxial compressive strength. The meso-damage factor obeys the Gauss function distribution，and the meso-damage gradually propagates from the edge of the surface to the center with increasing the axial stress. The three meso-structures within sandstone samples mainly exhibit as two forms of meso-morphology，e.g. sand and cement，and the damage of the sample begins from the cement and then transfers to the sand. Three components of sandstone including oxygen，silicon and aluminum respectively distribute throughout the sample，in the high-strength area and in the low-strength area.

Key words： rock mechanics plastic deformation meso-damage damage factor micro-crack elemental analysis

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	TANG Hai
	YI Shuai
	YUAN Chao
	WANG Jianlong
	DING Ansong
	ZHAO Zhiwei

Cite this article:

TANG Hai,YI Shuai,YUAN Chao, et al. Experimental study on meso-damage of sandstone during loading process#br#[J]. , 2019, 38(3): 487-498.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.1087 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/I3/487

[1] 蒋宇，葛修润，任建喜. 岩石疲劳破坏过程中的变形规律及声发射特性[J]. 岩石力学与工程学报，2004，23(11)：1 810–1 814. (JIANG Yu，GE Xiurun，REN Jianxi. Deformation rules and acoustic emission characteristics of rocks in process of fatigue failure[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(11)：1 810–1 814.(in Chinese))
[2] KASSNER M，NEMAT-NASSER S，SUO Z G，et al. New directions in mechanics[J]. Mechanics of Materials，2005，37(2/3)：231–259.
[3] 倪骁慧，李晓娟，朱珍德. 不同频率循环荷载作用下花岗岩细观疲劳损伤特征研究[J]. 岩石力学与工程学报，2011，30(1)：164–169. (NI Xiaohu，LI Xiaojuan，ZHU Zhende. Characteristics of meso-damage of granite samples subjected to dynamic uniaxial cyclic loading with different frequencies[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(1)：164–169.(in Chinese))
[4] 蔡美峰，何满潮，刘东燕. 岩石力学与工程[M]. 北京：科学出版社，2002：449–457.(CAI Meifeng，HE Manchao，LIU Dongyan. Rock mechanics and engineering[M]. Beijing：Science Press，2002：449–457.(in Chinese))
[5] 陈新，杨强，李德建. 岩体裂隙网络各向异性损伤力学效应研究[M]. 北京：科学出版社，2016：64–70.(CHEN Xin，YANG Qiang，LI Dejian. Study on an-isotropic damage mechanics effect of fracture network in rock mass[M]. Beijing：Science Press，2016：64–70.(in Chinese))
[6] 袁超，唐海，屈延嗣. 岩石压缩条件下微裂纹扩展机制研究及数值模拟[J]. 矿业工程研究，2011，26(2)：13–17.(YUAN Chao，TANG Hai，QU Yansi. Study and numerical simulation of crack propagation in rock under compression[J]. Mineral Engineering Research，2011，26(2)：13–17.(in Chinese))
[7] 张国凯，李海波，夏祥，等. 岩石细观结构及参数对宏观力学特性及破坏演化的影响[J]. 岩石力学与工程学报，2016，35(7)：1 341–1 352.(ZHANG Guokai，LI Haibo，XIA Xiang，et al. Effects of microstructure and micro parameters on macro mechanical properties and failure of rock[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(7)：1 341–1 352.(in Chinese))
[8] 朱珍德，黄强，王剑波，等. 岩石变形劣化全过程细观试验与细观损伤力学模型研究[J]. 岩石力学与工程学报，2013，32(6)：1 167–1 175.(ZHU Zhende，HUANG Qiang，WANG Jianbo，et al. Mesoscopic experiment on degradation evolution of rock deformation and its meso-damage mechanics model[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(6)：1 167–1 175.(in Chinese))
[9] 宋朝阳. 弱胶结砂岩细观结构特征与变形破坏机理研究及应用[博士学位论文][D]. 北京：北京科技大学，2017.(SONG Chaoyang. The analysis and application of esoscopic structure characteristic and deformation and failure mechanism of weak cemented sandstone[Ph. D. Thesis][D]. Beijing：University of Science and Technology Beijing，2017.(in Chinese))
[10] 郑克洪. 基于X-Ray CT的煤矸颗粒细观结构及破损特性研究[博士学位论文][D]. 徐州：中国矿业大学，2016.(ZHEN Kehong. Study on meso-structure and damage characteristics for coal and gangue particles based on X-Ray CT[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2016.(in Chinese))
[11] 李晓娟，倪骁慧，孙斌祥，等. 粉砂岩三轴压缩条件下细观损伤特征的定量研究[J]. 煤炭学报，2012，37(4)：590–595.(LI Xiaojuan，NI Xiaohui，SUN Binxiang，et al. Quantitative study on meso-damage characteristics of siltstone under triaxial compression[J]. Journal of China Coal Society，2012，37(4)：590–595.(in Chinese))
[12] 倪骁慧，李晓娟，朱珍德，等. 不同频率循环荷载作用下花岗岩细观疲劳损伤量化试验研究[J]. 岩土力学，2012，33(2)：422–427.(NI Xiaohu，LI Xiaojuan，ZHU Zhende，et al. Quantitative test study of meso-damage of granite under cyclic load with different frequencies[J]. Rock and Soil Mechanics，2012，33(2)：422–427.(in Chinese))
[13] 惠兴田，王博. 煤矿采空区顶板防控技术研究[J]. 中国煤炭，2010，36(2)：52–54.(HUI Xingtian，WANG Bo. On coal mine gob roof protection and control technology[J]. China Coal，2010，36(2)：52–54.(in Chinese))
[14] 钱鸣高，石平五，许家林. 矿山压力与岩层控制[M]. 徐州：中国矿业大学出版社，2010：110–120.(QIAN Minggao，SHI Pingwu，XU Jialin. Mine pressure and strata control[M]. Xuzhou：China University of Mining and Technology Press，2010：110–120.(in Chinese))
[15] 宋青青，邱维理，张振春. 地质学基础[M]. 4版. 北京：高等教育出版社，2005：101–128.(SONG Qingqing，QIU Weili，ZHANG Zhenchun. Basic geology[M]. 4th ed. Beijing：Higher Education Press，2005：101–128.(in Chinese))
[16] M. E. 图克尔. 沉积岩的野外描述[M]. 韩书和译. 北京：地质出版社，1984：15–18.(TUCKER M E. Field description of sedimentary rocks[M]. Translated by HAN Shuhe. Beijing：Geological Publishing House，1984：15–18.(in Chinese))
[17] 冯增朝，赵阳升，段康廉. 岩石的细胞元特性及其非均质分布对岩石全曲线性态的影响[J]. 岩石力学与工程学报，2004，23(11)：1 819–1 823.(FENG Zengchao，ZHAO Yangsheng，DUAN Kanglian. Influence of rock cell characteristics and rock inhomogeneity parameter on complete curve of stress-strain[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(11)：1 819–1 823.(in Chinese))
[18] 刘宝琛. 实验断裂、损伤力学测试技术[M]. 北京：机械工业出版社，1994：28–29.(LIU Baochen. Measuring technique of experimental fracture and damage mechanics[M]. Beijing：Machinery Industry Press，1994：28–29.(in Chinese))
[19] 马天寿，陈平. 基于CT扫描技术研究页岩水化细观损伤特性[J]. 石油勘探与开发，2014，41(2)：227–234.(MA Tianshou，CHEN Ping. Study of meso-damage characteristics of shale hydration based on CT scanning technology[J]. Petroleum Exploration and Development，2014，41(2)：227–234.(in Chinese))
[20] 于庆磊，唐春安，唐世斌. 基于数字图像的岩石非均匀性表征技术及初步应用[J]. 岩石力学与工程学报，2007，26(3)：551–559. (YU Qinlei，TANG Chun?an，TANG Shibin. Digital image based characterization method of rock?s heterogeneity and its primary application[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(3)：551–559.(in Chinese))
[21] 王玉红. 计算机辅助设计CorolDRAW X6[M]. 北京：中国水利水电出版社，2014：42–64.(WANG Yuhong. Computer aided design CorolDRAW X6[M]. Beijing：China Water and Power Press，2014：42–64.(in Chinese))