Japan Society for Natural Disaster Science NII-Electronic Library Service
Abstract
A field survey of rainwater infiltration and an observation of wetting front are carried out. A seepage flow analysis and a stability analysis of actual slope taking the seepage force in account, reveals that the wetting front reaches the depth of more than 3.0m from the surface when the total rainfall attains 285mm, that rainwater infiltration can be sufficiently simulated with the vertically one-dimensional equation, and that slope stability during heavy rainfall is much influenced by the seepage force. A field survey of rainwater infiltration and an observation of wetting front are carried out. A seepage flow analysis and a stability analysis of actual slope taking the seepage force in account, reveals that the wetting front reaches the depth of more than 3.0m from the surface when the total rainfall attains 285mm, that rainwater infiltration can be sufficiently simulated with the vertically one-dimensional equation, and that slope stability during heavy rainfall is much influenced by the seepage force.
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