摘要
日本四国地区分布有大量具有独特地质条件和活动特征的结晶片岩滑坡。长期的实地观测结果表明,季节性的集中降雨是影响此类滑坡活动的主要因素。文章基于对此类滑坡活动观测资料和降雨资料的综合分析,阐述了结晶片岩滑坡的活动特点以及集中降雨对其的影响作用。通过对有效雨量和滑坡位移等反映降雨影响和滑坡活动状况参数的分析,揭示了集中降雨与滑坡活动之间的关系,并且确定了对该地区滑坡活动产生影响的降雨特征,为此类滑坡灾害的防治与管理提供了依据和评价指标。
There are many large landslides in the crystalline schist region of Shikoku Island, Japan, which have been revealed and are being monitored by on - site monitoring system. The seasonal continuous high- intensity rainfall plays a key rule in provoking landslide movement. This paper introduces the characteristics of this kind of landslide movement and investigates the influence of intense rainfall on the activities of crystalline schist landslide by examining rainfall and displacement of four typical landslides. By calculating and defining the effective rainfall and the relative landslide displacement, the relationship between rainfall and rainfall- induced landslide movement is analyzed. Different types of rainfall are identified for the landslide prevention and risk management of this region.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2010年第2期99-103,共5页
Hydrogeology & Engineering Geology
基金
国家自然科学基金(50679014)
博士后科研基金(20060390981)
国家"十一五"科技支撑计划重点项目(2006BAC04B01)
教育部留学回国人员科研启动基金联合资助
关键词
结晶片岩
滑坡
集中降雨
有效雨量
相对滑动位移
crystalline schist
landslide
intense rainfall
effective rainfall
relative landslide displacement
