摘要
统计以往国内外土石坝的震害资料,分析地震对土石坝的破坏类型主要有滑坡、水平位移、渗漏、震陷、裂缝,面板与河谷接缝发生变位,面板间的施工缝错台、脱空及被挤压,坝顶防浪墙开裂和被挤压等。得到在地震荷载作用下,土石坝的震害类型主要有永久变形、滑坡失稳、液化、防渗体破坏和次生破坏等,而且这些震害常常不是单独出现,其机理也相互耦合。
The seismic damage data of earth and rockfill dams at home and abroad are analyzed,and the damage types of earth and rock dams are mainly landslides,horizontal displacement,leakage,seismic subsidence and cracks,and the joints between the panels and the valley are changed,the construction joints between the panels,the dislocation and the extrusion,the crack and the extrusion of the top of the dam,and so on.Under the action of seismic load,the earthquake damage types of earth rockfill dams mainly include permanent deformation,landslide instability,liquefaction,seepage prevention and secondary destruction,and these earthquake damage often do not appear separately,and their mechanism is coupled with each other.
作者
陈正
CHEN Zheng(Zhenjiang source building design Consulting Co.,Ltd.,Jiangsu Zhenjiang 212000,China)
出处
《科技视界》
2018年第34期196-197,共2页
Science & Technology Vision
关键词
震害
土石坝
破坏
Earthquake damage
Earth rock dam
Destruction
