FIELD INVESTIGATIONS IN LANDSLIDE AREAS AND SHEARING STRENGTH OF SOIL FOR USE IN STABILITY ANALYSIS
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概要
- 論文の詳細を見る
To investigate seasonal variations in the groundwater level and pore water pressure in landslide areas, we made field invsetigations at several landslide areas. In addition, we conducted two kinds of ring shear test on soils taken from some of these areas in order to determine the fundamental strength parameters of the soils. Our main conclusions from the field and laboratory investigations are 1) The groundwater level and pore water pressure at the slip surface in landslide areas change seasonally, with marked increases after the snow-melting and heavy rainfall seasons. 2) Pore water pressures at the slip surfaces do not always coincide with hydraulic pressure values calculated from the groundwater level. Therefore, when making slope stability analyses and taking preventive measures against reslidings, pore water pressures should be measured directly all along the slip surface with piezoelectric meters. 3) Determination of strength parameters using a ring shear apparatus is useful in making stability analyses of slopes in land-slide areas.
- 日本自然災害学会の論文
著者
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Ogawa Shoji
Department Of Civil Engineering The Technological University Of Nagaoka
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Konagai K
Univ. Tokyo
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Ikeda Toshio
Department Of Electronic Engineering Faculty Of Engineering Tohoku University
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KAMEI Takeshi
Department of Geoscience, Faculty of Science and Engineering, Shimane University
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KONAGAI Kazuo
Department of Civil Engineering, The Technological University of Nagaoka
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Ikeda Toshio
Department Of Civil Engineering The Technological University Of Nagaoka
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Ikeda Toshio
Department Electronic Engineering Faculty Of Engineering Tohoku University
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Kamei Takeshi
Department Of Civil Engineering The Technological University Of Nagaoka
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