摘要
乳源县位于南岭山脉南段,地质环境复杂多样,属地质灾害多发区域。区内地质灾害隐患点共计586处,主要为崩塌和滑坡,分别为320和257处,地面塌陷和泥石流9处。县域内地质灾害的形成与地形地貌条件、易崩易滑地层的集中分布等内部因素及强降雨等外部诱发因素关系密切。乳源县地质灾害成灾类型多样,滑坡成灾模式为蠕滑-地表开裂成灾,崩塌成灾模式为高位崩塌落石成灾和崩塌直接压覆成灾,泥石流成灾模式为压埋摧毁成灾,地面塌陷成灾模式为扩张式成灾。
Located in the southern part of Nanling Mountain Range,Ruyuan County has a complex and diversified geological environment,and is a geological disaster-prone area.There are a total of 586 hidden sites of historical geological disasters in the area,including 320 collapses and 257 landslides.The formation mechanism of geological disasters in the county is closely related to internal factors inducing topographic and geomorphological conditions,the concentrated distribution of collapse-prone strata,and external factors inducing heavy rainfall.There are various types of geological disasters in Ruyuan County,including landslide disaster modes as creep-slip-surface cracking disaster mode;collapse disaster modes as high level collapse rockfall disaster mode and direct compression disaster mode;debris flow disaster mode as buried destruction disaster mode;and ground collapse disaster mode as expanding disaster mode.
作者
全守奖
QUAN Shoujiang(Guangdong Institute of Nuclear Industry Geological Survey,Guangzhou 510800,Guangdong,China)
出处
《资源信息与工程》
2024年第5期46-48,56,共4页
Resource Information and Engineering
关键词
地质灾害
形成机理
成灾模式
乳源县
geological disasters
formation mechanism
disaster mode
Ruyuan County
