摘要
2013年4月20日四川省芦山县发生7.0级地震。震后,我研究团队立即开展了地震次生山地灾害的实地调查及稳定性评估工作。研究区内先锋滑坡位于4.20地震重灾区雅安宝兴县陇东镇先锋村,该点为巨型古滑坡,其规模约1.8×108 m3,局部复活,复活体规模约4×106 m3有可能堵塞西河河道,影响宝兴至永富的公路畅通,对先锋村共170户1 168人的生命财产安全构成潜在威胁。汶川地震后,先锋滑坡已进行了工程治理。然而,庐山地震后,先锋滑坡内滑面受到了较为严重的扰动,通过现场调查,滑坡不仅对滑坡前缘的西河造成威胁,同样对老场村居民点构成巨大威胁。通过对先锋滑坡的实地调查及其稳定性分析,对先锋滑坡提出了护坡排固的综合防治措施。
An Ms7.0earthquake,focal depth of 13km,happened in Lushan,Sichuan,on April 20th,2013.After the quake,we immediately have taken a survey to the resulted and potential mountain hazards,and stability evaluation.Pioneer landslide located in Pioneer village Baoxing county which is the heavy hazard area with 4.20earthquake-hit.The point of giant ancient landslides with the range about 1.8×108 m3.It is the local resurrection and the resurrection body size of about 4×106 m3.It is likely to block the Xihe River,and affect the road traffic from Baoxing to Yongfu.It is also a potential threaten to the total of 170households, 1 168people's life and safety in Pioneer village.After the Wenchuan earthquake,the pioneer landslide had been made by prevented construction.After the Lushan earthquake,however,the pioneer landslide's sliding surface was suffered seriously.Through field investigation,the landslide not only is a threat to the front part of Xihe River,also pose a great threat to the people settlement in Laochang village.The authors put forward some comprehensive measures on slope protection and solidation through the field investigation and analyzing the stability of the Pioneer landslide.
出处
《长春工程学院学报（自然科学版）》
2013年第4期84-88,共5页
Journal of Changchun Institute of Technology：Natural Sciences Edition
关键词
芦山地震
滑坡
稳定性
防治措施
Lushan earthquake
landslide
stability
prevention and control measures
