Influences of Mineralogy and Water Content on the Mechanical Properties of Argillite

被引：67

作者：

Hu, D. W. ^{[1
]}

Zhang, F. ^{[1
,2
]}

Shao, J. F. ^{[1
]}

Gatmiri, B. ^{[3
]}

机构：

[1] Univ Lille, LML, UMR 8107, F-59655 Villeneuve Dascq, France

[2] Hubei Univ Technol, Wuhan, Peoples R China

[3] ANDRA, Chatenay Malabry, France

来源：

ROCK MECHANICS AND ROCK ENGINEERING | 2014年 / 47卷 / 01期

关键词：

Argillite; Claystone; Unsaturated rocks; Mineralogy; Water content; Micro-indentation; HYDROMECHANICAL BEHAVIOR; ELASTOPLASTIC DAMAGE; ROCKS; PERMEABILITY; DESATURATION; DESICCATION; SATURATION; CLAY;

D O I：

10.1007/s00603-013-0413-8

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Callovo-Oxfordian (Cox) argillite was investigated in the context of feasibility studies for an underground repository for nuclear waste. In this study, the influence of mineralogical composition and water content on the mechanical properties of the Cox argillite was investigated. The samples were drilled from three representative depths at which the rock formations have different mineralogical compositions. Micro-indentation and mini-compression tests were performed on samples with different water contents. The elastic and failure properties of argillite were determined and were found to be related to the mineralogical composition and water content. Both the elastic modulus and strength decrease with increasing clay and water contents.

引用

页码：157 / 166

页数：10

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