広島県における最近の降雨特性と花崗岩斜面の崩壊 : 1999年6月29日広島県豪雨災害を例として(<小特集>気象変動と地盤工学)

概要

論文の詳細を見る
The 1999 heavy rainfall disaster in Hiroshima is discussed in this paper in relation with recent rainfall characteristics. AMeDAS data for the period of the past 20 years had not shown y meteorological change that resulted in such an unusual rainfall in Hiroshima The 1999 rainfall the field surveys of slope failures in Hiroshima and Kure cities, sliding occurred between weakly weathered granite rock and strongly weathered rock (Masado). Then a series of direct shear tests was carried out to examine the shear strength mobilized between the granite rock and Masado. The test results obtained from the experiments indicated that the contact surface between the granite rock and Masado could sufficiently developed into a slip surface inducing slope failure when it had a heavy rainfall.
社団法人地盤工学会の論文
2001-01-01