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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)
Baosong Ma
Baosong Ma
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This paper deals with the orientation ability of clay minerals and its effects on landslides using the result of x-ray diffraction for clay mineral in sliding-zone soil. At first, the basic measured principles for the orientable arrangement of clay minerals were discussed and the methods of the quantitative appraisement for the orientation ability of clay minerals are given. And then, according to the result of x-ray diffraction of the clay minerals in the sliding-zone soil, the orientation ability of clay minerals had been quantitatively analyzed and calculated. Results show that the sliding-zone soil has the orientation ability of clay minerals, expansibility and shrinkage as well as homogeneity of expansion and shrinkage under the action of water. They may cause the continuous reduction of shear strength and structural stability of sliding-zone soil and form landslide because of the expansibility and shrinkage of clay minerals themselves, reversibility and circulation of expansion and shrinkage of sliding-zone soil. Finally, a case study is used to illustrate its application.

Method of Quantitative Appraisement for the Orientation Ability
Effects of Orientability of Clay Minerals in the Sliding-Zone Soil on Landslides
Case Study
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