摘要
文中滑坡位于四川地震灾害极重县平武县黑水场镇,属于中型滑坡,该滑坡在汶川"5.12"地震后有较大的变形,且坡体局部已有裂缝及滑塌现象,在"9.23"暴雨后进一步发生变形,且蠕滑现象加剧,目前以坡体局部滑动或崩塌为主,该地区余震频发,加之在暴雨的共同影响作用下,滑坡极有可能失稳,一旦失稳将会对山下多户居民的生命财产造成严重损失。本文在野外调查、钻探和室内试验等资料的基础上,对位于地震区的该滑坡进行了机理分析和稳定性计算,最后提出了防治措施建议。该滑坡是"汶川5.12"地震过程中产生变形破坏的典型实例,从计算到滑坡模型的建立,参数的选用都具有一定的代表性。
The landslide is situated at the severe earthquake-stricken area—the town of Heishuichang,Pingwu County in Sichuan,which belongs to middle-sized landslide.There has been large deformation after the＂5.12＂earthquake.In addition,fractures can be found in some parts of the landslide and slumping hap-pen partially.The landslide deforms furthermore after the＂9.23＂storm and creeps more seriously.Re-cently,the sliding is mainly in the form of partial slipping and collapse.Under the influence of frequent af-ter-shock and storm,the landslide in this area is of high possibility to lose the stability,which will cause large quantities of severe losses for the near-by residents’lives and properties.Based on the field survey,drilling,laboratory experiments,etc.,firstly the paper analyzes the mechanism and the stability of the landslide in quake-stricken area.And then it chooses the section to calculate and finally puts forwards the preventive measures.As a survey example,the parameters chosen for calculation and model-building are highly typical and representative.
出处
《中国矿业》
北大核心
2010年第9期109-112,共4页
China Mining Magazine
关键词
地震滑坡
敏感性
稳定性
防治措施
earthquake landslide
sensitivity
stability
preventive measures
