斜面への雨水浸透と安定性について

概要

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In order to prevent slope disaster, it is important to clarify a mechanism of slope failure during heavy rainfall. In this paper, we firstly carry out a field survey due to rainwater infiltration and observe an advance of a wetting front. Secondly, we apply a seepage flow analysis and a stability analysis taking account the seepage force to actually slope. Through this study, the following results were obtained. 1) The wetting front level reached to the depth of more than 3.0m from the surface at a rainfall of 285mm. 2) Computation of a depth of a wetting front is possible with proposed equation. 3) Slope stability during heavy rainfall is influenced by the seepage force.
長崎大学工学部,Faculty of Engineering, Nagasaki Universityの論文