工程地质学报Issue(2)：187-193,7.DOI:10.13544/j.cnki.jeg.2015.02.001
汶川地震灾区滑坡风险区划研究
STUDY ON WENCHUAN EARTHQUAKE-INDUCED LANDSLIDE RISK ZONATION
摘要
Abstract
Landslides that are occurred during the earthquake are called seismic-landslides.This paper discusses the difference between the earthquake-induced landslide risk zonation and the general landslide risk zonation.It considers that some factors related to earthquake should be taken into the consideration in earthquake-induced landslide risk zonation.They include the distance between the landslide location and epicenter and the fault's buffer distance.They can reflect the role of earthquake dynamic energy to landslide formation.However,it is hard to reflect the earthquake effect in the vulnerability assessment.Five factors including landslide density,population density,road density,building density,and cultivated land density are adopted to evaluate the study area vulnerability.Finally,the contributing weight model is adopted to evaluate the landslide risk.The result shows that the higher and the high risk region are accounting for 9.03%and 1 4.61%of the whole study area respectively.This demonstrates that the disaster area after the Wenchuan Earthquake is still facing the landslide hazard threats.In the meizoseismal area,the counties of Beichuan,Qiangchuan,Dujiangyan,and Pengzhou should be regarded as the main landslide risk prevention areas.After field sampling and validation,the results are proved to be consistent with the actual Wenchuan earthquake regions.Thus,the method in this paper is reliable.关键词
汶川地震/极震区/滑坡/风险Key words
Wenchuan Earthquake/Meizoseismal area/Landslide/Risk分类
天文与地球科学引用本文复制引用
乔建平,王萌,吴彩燕..汶川地震灾区滑坡风险区划研究[J].工程地质学报,2015,(2):187-193,7.基金项目
“十二五”科技支撑计划项目（2011 BAK12B01），973项目（2010CB731504），科技部重点国际合作项目（2013DFA21720）资助． （）
