SCANNING ELECTRONIC MICROSCOPE TESTS FOR ROCK MICRO-RUPTURE MECHANISM AND FRACTURE CHARACTERISTIC OF PHYLLITE

ZHENG Da; JU Nengpan

Volume 19 Issue 3

Jul. 2011

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ZHENG Da, JU Nengpan. 2011: SCANNING ELECTRONIC MICROSCOPE TESTS FOR ROCK MICRO-RUPTURE MECHANISM AND FRACTURE CHARACTERISTIC OF PHYLLITE. JOURNAL OF ENGINEERING GEOLOGY, 19(3): 317-322.

Citation:

ZHENG Da, JU Nengpan. 2011: SCANNING ELECTRONIC MICROSCOPE TESTS FOR ROCK MICRO-RUPTURE MECHANISM AND FRACTURE CHARACTERISTIC OF PHYLLITE. JOURNAL OF ENGINEERING GEOLOGY, 19(3): 317-322.

ZHENG Da, JU Nengpan. 2011: SCANNING ELECTRONIC MICROSCOPE TESTS FOR ROCK MICRO-RUPTURE MECHANISM AND FRACTURE CHARACTERISTIC OF PHYLLITE. JOURNAL OF ENGINEERING GEOLOGY, 19(3): 317-322.

Citation:

ZHENG Da, JU Nengpan. 2011: SCANNING ELECTRONIC MICROSCOPE TESTS FOR ROCK MICRO-RUPTURE MECHANISM AND FRACTURE CHARACTERISTIC OF PHYLLITE. JOURNAL OF ENGINEERING GEOLOGY, 19(3): 317-322.

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SCANNING ELECTRONIC MICROSCOPE TESTS FOR ROCK MICRO-RUPTURE MECHANISM AND FRACTURE CHARACTERISTIC OF PHYLLITE

State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu 610059

Received Date: 2012-08-20
Rev Recd Date: 2011-05-08
Publish Date: 2011-06-25

Abstract

Abstract

Macroscopic fractures of rocks are strongly linked to their microstructures and micro-defects.It is one of difficult problems of rock fracture mechanics to establish more intuitive relationship between rock microscopic mechanism and macro rupture.This paper uses the sericite phyllite and siliceous plate phyllite of Middle Devonian series on upriver of Jinsha River as the research object.The micro-rupture properties of rock are judged and the relation between the form and mechanism of phyllite micro-rupture and mineral component is revealed through scanning electronic microscope and mechanical tests.The sericite phyllite shows micro-scratch micro-fracture fracture which is a typical micro-brittle shear.The forms of micro-fracture have both pull-off rupture caused by intergranular fracture and the micro-shear rupture,belonging to the micro-fracture mechanism of the coexistence of the tension and shear fracture.The physical meaning of rock fracture is analyzed with the combination of mechanic characteristics of macroscopic fracture.The evidence is acquired to establish the link between rock micro-rupture mechanism and macroscopic fracture analysis.
- Phyllite,
- Micro-rupture,
- Mineral composition,
- Macroscopic fracture

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References

[1] 冯涛, 谢学斌,潘长良.岩爆岩石断裂机理的电镜分析
[J].中南工业大学学报, 1999, 30 (2): 14~17.
Feng Tao,Xie Xuebin,Pan Changliang.Fracture mechanism analysis for burst rock with electron scanning microscope.Journal of Central South University of Technology(Natural Science), 1999, 30 (2): 14~17.

[2] 刘小明, 李焯芬.岩石断口微观机理分析与实验研究
[J].岩石力学与工程学报, 1997, 16 (6): 509~513.
Liu Xiaoming,Li Zhuofen.Microfailure mechanism analysis and test study for rock failure surface.Chinese Journal of Rock Mechanics and Engineering, 1997, 16 (6): 509~513.

[3] Priest S.D,J.A.Hudson.Discontinuity of spacing in rocks,Int.J.Rock Mech.Sci.and Geomech.Abstracts.1976,Vol.13.

[4] Ipohorski M,Lippo M Ⅰ,Castillo-Guerra R,et al.Failure analysis of a steam valve stem.Materials Characterization, 2003, 50 : 23~30.

[5] 钟群鹏, 赵子华.断口学
[M].北京: 高等教育出版社, 2006.
Zhong Qunpeng,Zhao Zihua.Fractures.Beijing: Higher Education Press, 2006.

[6] 李先炜, 兰勇瑞,邹浚兴.岩石断口分析
[J].中国矿业大学学报, 1983,(1): 15~21.
Li Xianwei,Lan Yongrui,Zou Junxing.A study of rock fractures.Journal of China University of Mining & Technology, 1983,(1): 15~21.

[7] 谭以安. 岩爆岩石断口扫描电镜分析及岩爆渐进破坏过程
[J].电子显微报, 1989, 8 (2): 41~47.
Tan Yian.Analysis of fractured face of rock burst with scanning electron microscope and its progressive failure process.Journal of Chinese Electron Microscopy Society, 1989, 8 (2): 41~47.

[8] 蔡国军. 澜沧江小湾水电站坝基岩体结构面发育机理及其工程地质特征研究 .成都理工大学硕士学位论文, 2008.
Cai Guojun.Study on Genesis and Engineering Geological Characteristics of the Rock Mass Discontinuities in the Dam Foundation of Xiaowan Hydropower Station of Lancang River.Chengdu: Chengdu University of Technology, 2008.

[9] 谢和平, 陈至达.岩石断裂的微观机理分析
[J].煤炭学报, 1989, 14 (2): 57~66.
Xie Heping,Chen Zhida.Microfailure mechanism analysis for rock failure.Journal of Coal Science and Engineering, 1989, 14 (2): 57~66.

[10] 代革联, 李新虎.岩石加卸荷破坏细观机理CT实时分析
[J].工程地质学报, 2003, 12 (1): 104~108.
Dai Gelian,Li Xinhu.Ct real time testing of meso-failure mechanisms of rock under loading and unloading conditions.Journal of Engineering Geology, 2003, 12 (1): 104~108.

[11] 何满潮, 景海河,孙晓明.软岩工程地质力学研究进展
[J].工程地质学报, 2000, 8 (1): 46~62.
He Manchao,Jing Haihe,Sun Xiaoming.Research progress of soft rock engineering geomechanics in China coal mine.Journal of Engineering Geology, 2000, 8 (1): 46~62.

[12] 周应华, 周德培,封志军.三种红层岩石常规三轴压缩下的强度与变形特性研究
[J].工程地质学报, 2005, 13 (4): 477~480.
Zhou Yinghua,Zhou Depei,Feng Zhiju.Strength and deformation of three types of red beds under conventional triaxial compression.Journal of Engineering Geology, 2005, 13 (4): 477~480.