四川都江堰红梅村滑坡复活成因与机制分析  

Causes and mechanism analysis of Hongmei village landslide,Sichuan province

作　　者：宋磊[1] 左三胜[1] 丁军 钟华介 张皓 

机构地区：[1]成都理工大学地质灾害防治与环境保护国家重点实验室,四川成都610059 [2]中国建筑西南勘察设计研究院有限公司,四川成都610081 [3]成都市地质环境监测站,四川成都610072

出　　处：《中国地质灾害与防治学报》2012年第2期34-37,共4页The Chinese Journal of Geological Hazard and Control

摘　　要："8.13"特大暴雨,红梅村滑坡复活,经过现场勘探及进一步分析表明:由于人们对老滑坡认识不足,坡体上的人类工程活动(如:修建房屋,公路等)形成的顶部堆载改变滑体原有的平衡且未对滑体作必要的防治措施,为滑坡的复活埋下隐患。"8.13"特大暴雨前该地区连续多天降雨,导致坡体处于近饱水状态,一方面增大了岩土体容重;另一方面增大滑移面剪应力和降低抗剪强度,从而"8.13"特大暴雨激发了滑坡的复活。HongMei village landslide revival along with ＂8.13＂ super large rainstorm, through spot exploration and further analysis suggests that firstly due to insufficient understanding of old landslide, slope of human engineering activities （such as： building, highway, etc） forming the top load change of sliding body original balance and not on the sliding body to make the necessary preventive measures for the landslide revival, bury next hidden trouble. And then ＂8. 13＂ heavy rain in the area before the continuous rain, lead to slope in nearly saturated state, on one hand increases the soil bulk density; on the other hand, increase the slip shear stress and reduce the shear strength; thus ＂8.13＂ rainstorm aroused the landslide revival.

关 键 词：红梅村滑坡复活 变形 成因 机制 

分 类 号：P642.22[天文地球—工程地质学]