INFLUENCE OF RAIN INFILTRATION ON SLOPE FAILURE OF EMBANKMENT

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  • Zhu Wei
    社団法人 土木学会 日本大学大学院生産工学研究科
  • Yamamura Kazuya
    社団法人 土木学会 日本大学 生産工学部土木工学科
  • Ishida Tetsuro
    社団法人 土木学会 東洋大学 工学部環境建設学科

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  • 降雨浸透が盛土の斜面崩壊に及ぼす影響
  • コウウ シントウ ガ モリド ノ シャメン ホウカイ ニ オヨボス エイキョウ

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Abstract

It is necessary to clarify the phenomena of rain infiltration and the consequential effect of seepage upon slope stability, as slope failure of embankment due to rain is acompound problem of seepage and stability. The rain infiltration into embankment is influenced by soil factors such as type of soil and degree of compaction. It is also influenced by such factors as rainfall intensity or pattern and shape of embankment. These factors combine to create differences in pore water pressure, degree of saturation, even if the same amount of rain is infiltrated, and in influencing stability of embankment. Through the analyses of saturated-unsaturated seepage flow utilizing the full scale model test results, the influences of rain infiltration into embankment on slope stability under various conditions have been examined.

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