Anisotropy of magnetic susceptibility analysis of deformed kaolinite: implications for evaluating landslides

被引：17

作者：

Mamtani, Manish A. ^{[1
]}

Sengupta, Aniruddha ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Geol & Geophys, Kharagpur 721302, W Bengal, India

[2] Indian Inst Technol, Dept Civil Engn, Kharagpur 721302, W Bengal, India

来源：

INTERNATIONAL JOURNAL OF EARTH SCIENCES | 2009年 / 98卷 / 07期

关键词：

Anisotropy of magnetic susceptibility; Kaolinite; Deformation; Shear bands; Landslide; BOOM CLAY; STRAIN; EVOLUTION; BEHAVIOR; FABRICS; MODELS; BANDS; ZONE;

D O I：

10.1007/s00531-008-0336-x

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Plane strain tests were performed on seven kaolinite blocks, each of which developed shear bands. Anisotropy of magnetic susceptibility (AMS) analysis of the kaolinite reveals a threshold degree of magnetic anisotropy (P') exceeding which shear bands develop. Since P' is a strain-intensity gauge and soils are known to develop shear bands prior to landsliding, it is concluded that soil in every landslide-prone region must have its unique threshold P' exceeding which it develops shear bands before failing. Therefore, AMS monitoring of soil in landslide prone regions is proposed as a potential tool in the management of natural hazard zones.

引用

页码：1721 / 1725

页数：5

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