【摘要】 汶川5.12地震诱发了大量的次生地质灾害,直接威胁着劫后余生的灾区人民的性命。准确判断震后次生地质灾害的发展趋势,并采取相应的应急处理措施尤为重要。在对青川县田家坝滑坡现场调查的基础上,分析认为该滑坡为覆盖层拉裂松动滑坡,现阶段处于潜在不稳定状态,在暴雨和强烈余震情况下有较大的失稳可能;从滑坡运动学角度划定了滑坡失稳后的影响范围。采取了搬迁避让、裂缝填充处理和实施简易监测的应急处理措施,为震后灾区次生地质灾害的应急处理积累了经验。更多还原

【Abstract】 The "5·12" Wenchuan earthquake has induced many secondary geological disasters and directly threatens the life of the victims.So,it is very important to adequately understand secondary geological disaster and take effective emergency measures.This study is based on the field investigation of Tianjiaba landslide in Qingchuan County.The landslide is found to be an over burden landslide and is in latent instability,which is still in the instability during rainstorm and strong aftershock.The area influenced by the landslide is determined in view of landslide kinematics.The emergency measures of relocation,crack filling,and simple monitoring are taken.All the works are of important significance to the secondary geological disaster prevention after earthquake.更多还原