| Vol.10-1 |
| 雨水浸透を考慮した斜面安定性の評価手法について Study on Slope Stability Analysis by Considering Rainwater Infiltration |
| 調 修二* ・ 久楽 勝行** ・ 伊勢田 哲也*** ・ 棚橋 由彦*** Shuji SHIRABE*, Katsuyuki KUTARA**, Tetsuya ISEDA*** and Yoshihiko TANABASHI*** |
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.
【キーワード】：浸透，斜面安定，浸透力
Key words: infiltration, slope stability, seepage force.
*基礎地盤コンサルタンツ（株）長崎事務所
Nagasaki Office, Kisojiban Consultants Co., Ltd.
**建設省土木研究所土質研究室
Public Works Research Institute, Ministry of Construction
***長崎大学工学部土木工学科
Dapartment of Civil Engineering, Faculty of Engineering, Nagasaki University
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