Scanning Electronic Microscope Tests for Rock Micro-Rupture Mechanism and Fracture Characteristic of Phyllite
详细信息
- 责任者：Zheng Da (State Key Laboratory of Geohazard Prevention and Geoenvironment Protection ; Chengdu 610059 ; China) ; Ju Nengpan
- 刊名：Journal of Engineering Geology
- 出版年：2011
- 卷期：19(3)
- 关键词：岩石破碎机理 ; rock fragmentation mechanism ; 断裂力学 ; fracture mechanics ; 千枚岩 ; phyllite
- 页码：p.317-322
- 图表：6 illus., 3 tables, 12 refs.
- 分类号：1702
- issnNo：ISSN1004-9665
- isbnNo：CN11-3249/P
摘要
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 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.
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