EARTHQUAKE INDUCED GEO-DISASTER CHAIN
A strong earthquake can cause a large number of landslides and avalanches,which can initiate causal geodisaster chains.A representative ring in disaster chain is that a coseismic landslide can block a river and form a landslide dam,which may burst and cause a catastrophic flood.In order to disclose the serious impacts of the geo-disaster chain induced by earthquake,this paper presented the form process of geo-disaster chain and proposed some cutting measures.According to the developing process,the geo-disaster chain from the 2008 Wenchuan earthquake was discussed.Two measures for cutting the chain are proposed,one is the landslide hazard map constructing on susceptibility analysis and the other is numerical simulation of debris flows for assessment of dangerous zone.The results of this study can help the authority make the right decision rapidly to take appropriate counter measures to reduce the risk of the geo-disaster chain or cut it directly.
earthquake landslide geo-disaster chain landslide hazard maps debris flows
GUANGQI CHEN YANGE LI YINGBIN ZHANG JIAN WU
Department of Civil and Structural Engineering,Kyushu University,Motooka 774,Nishi-ku,Fukuoka,819-03 Department of Civil and Structural Engineering,Kyushu University,Motooka 774,Nishi-ku,Fukuoka,819-03
国际会议
5th China-Japan Geotechnical Symposium(第五届中日岩土工程学术会议)
成都
英文
82-90
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）