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積雪荷重が浅層地すべり地の水分浸透へ及ぼす影響Effects of Snow Load on the Infiltration Process into Landslide Masses

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Effects of Snow Load on the Ground Surface Layer of a Shallow Landslide

Hikaru OSAWA, Sumio MATSUURA, Takashi OKAMOTO, Yuki MATSUSHI, Tomomi TERAJIMA, Tatsuya SHIBASAKI We studied effects of snow load on the ground surface layer of a landslide in areas underlain by Neogene sedimentary rocks. According to the vertical profile of consolidation test results, almost all of the specimens were over consolidated states. We compare OCRs with OCRs considering the snow load (effective overburden pressure add 20 kN/m2), a layer of -1m from the ground level that is the most strongly affected by the snow load. We suppose a factor in changing of hydraulic conductivity, which is the volumetric change of the shallow underground part by the snow load.

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