TY - GEN
T1 - Earthquake-induced flow-type slope failures in volcanic sandy soils and tentative evaluation of the fluidization properties of soils
AU - Kazama, M.
AU - Kawai, T.
AU - Kim, J.
AU - Takagi, M.
AU - Morita, T.
AU - Unno, T.
N1 - Publisher Copyright:
© 2016 Taylor & Francis Group, London.
PY - 2015
Y1 - 2015
N2 - Japan has many experiences of mudflow-type failures of volcanic sandy soil slopes during earthquakes. Firstly in this paper, several major cases of the flow-type failures are outlined. In general, undisturbed pyroclastic deposits have high strength against to fluidization because of its cementation effect. However, once the deposits are disturbed to use as an earth fill materials, the shear strength of disturbed soils cannot be expected. Rather, the disturbed pyroclastic soils are weaker than ordinary sandy soils. Therefore, it is necessary to evaluate the fluidization property of disturbed pyroclastic sandy soils for mitigating mudflow disaster. In this study, we introduce a drum type testing machine to evaluate the fluidization property. Two kinds of volcanic sandy soils are used as a specimen sampled from volcanic area in Japan. In addition to this, the wireless multi sensor which can be installed in the movable soils is introduced.
AB - Japan has many experiences of mudflow-type failures of volcanic sandy soil slopes during earthquakes. Firstly in this paper, several major cases of the flow-type failures are outlined. In general, undisturbed pyroclastic deposits have high strength against to fluidization because of its cementation effect. However, once the deposits are disturbed to use as an earth fill materials, the shear strength of disturbed soils cannot be expected. Rather, the disturbed pyroclastic soils are weaker than ordinary sandy soils. Therefore, it is necessary to evaluate the fluidization property of disturbed pyroclastic sandy soils for mitigating mudflow disaster. In this study, we introduce a drum type testing machine to evaluate the fluidization property. Two kinds of volcanic sandy soils are used as a specimen sampled from volcanic area in Japan. In addition to this, the wireless multi sensor which can be installed in the movable soils is introduced.
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U2 - 10.1201/b18897-42
DO - 10.1201/b18897-42
M3 - Conference contribution
AN - SCOPUS:84949845041
SN - 9781138028869
T3 - Volcanic Rocks and Soils - Proceedings of the International Workshop on Volcanic Rocks and Soils, 2015
SP - 175
EP - 176
BT - Volcanic Rocks and Soils - Proceedings of the International Workshop on Volcanic Rocks and Soils, 2016
A2 - Rotonda, Tatiana
A2 - Cecconi, Manuela
A2 - Silvestri, Francesco
A2 - Tommasi, Paolo
PB - CRC Press/Balkema
T2 - International Workshop on Volcanic Rocks and Soils, 2015
Y2 - 24 September 2016 through 25 September 2016
ER -