Recent eruption in 1991-1995 years of Unzen Volcano(Kyushu Island,Japan)has caught attention of many volcanologists because of dramatical consequences of the previos eruption in 1792,when more than 15000 people were p...Recent eruption in 1991-1995 years of Unzen Volcano(Kyushu Island,Japan)has caught attention of many volcanologists because of dramatical consequences of the previos eruption in 1792,when more than 15000 people were perished.So it is important to study this volcano and try to predict future eruptions and their possible damage.It is proved now,that magma hybridization processes展开更多
Even Unzen volcano has been declared to be in a state of relative dormancy,the latest formed lava lobe No.11 now represents a potential slope failure mass based on the latest research.This paper concentrates on the st...Even Unzen volcano has been declared to be in a state of relative dormancy,the latest formed lava lobe No.11 now represents a potential slope failure mass based on the latest research.This paper concentrates on the stability of the lava lobe No.11 and its possible critical sliding mass.It proposes geographic information systems (GIS) based three-dimensional (3D) slope stability analysis models.It uses a 3D locating approach to identify the 3D critical slip surface and to analyze the 3D stability of the lava lobe No.11.At the same time,the new 3D approach shows the effectiveness in selecting the range of the Monte Carlo random variables and locating the critical slip surface in different parts of the lava lobe No.11.The results are very valuable for judging the stability of the lava lobe and assigning the monitoring equipments.展开更多
文摘Recent eruption in 1991-1995 years of Unzen Volcano(Kyushu Island,Japan)has caught attention of many volcanologists because of dramatical consequences of the previos eruption in 1792,when more than 15000 people were perished.So it is important to study this volcano and try to predict future eruptions and their possible damage.It is proved now,that magma hybridization processes
基金Supported by the National Natural Science Foundation of China (40972229)provided by JSPS and Sabo Technical Center,Japan
文摘Even Unzen volcano has been declared to be in a state of relative dormancy,the latest formed lava lobe No.11 now represents a potential slope failure mass based on the latest research.This paper concentrates on the stability of the lava lobe No.11 and its possible critical sliding mass.It proposes geographic information systems (GIS) based three-dimensional (3D) slope stability analysis models.It uses a 3D locating approach to identify the 3D critical slip surface and to analyze the 3D stability of the lava lobe No.11.At the same time,the new 3D approach shows the effectiveness in selecting the range of the Monte Carlo random variables and locating the critical slip surface in different parts of the lava lobe No.11.The results are very valuable for judging the stability of the lava lobe and assigning the monitoring equipments.