“5.12”地震后通口河唐家山-邓家河段河道演变分析  

Analysis of fluvial processes of Tangjiashan-Dengjia Reach of Tongkou River after "5.12" Earthquake

作　　者：周静[1] 袁悦 

机构地区：[1]中国水电顾问集团成都勘测设计研究院,四川成都610072 [2]CPE西南分公司,四川成都610017

出　　处：《泥沙研究》2012年第6期26-32,共7页Journal of Sediment Research

基　　金：国家"5.12"地震灾后重建项目资助(A210KX)

摘　　要："5.12"地震造成唐家山-邓家河段震后滑坡、泥石流等次生灾害频发,尤其是唐家山堰塞湖泄洪和"9.24"魏家沟泥石流进入河道,河道边界条件的改变使该河段河道发生了剧烈的演变。本文分析了唐家山-邓家河段的平面河势、纵向、河床组成上的变化情况,并预测了该河道未来的演变趋势。本文成果对震后该河段综合整治、科学规划及地震遗址保护具有一定的现实意义。Severe fluvial processes occurred in Tangjiashan-Dengjia Reach of the Tongkou River after ＂5.12＂ Earthquake. The fluvial processes were mainly caused by the collapse of Tangjiashan avalanche dam and Wei- jiagou debris flow. In this article, the transversal and longitudinal changes and composition of the riverbed of Tangjiashan-Dengjia river reach are discussed;the fluvial trend in the future is forecasted. The result of this article is useful to integrated regulation of the reach and seismic site protection.

关 键 词：“5 12”地震 河道演变 唐家山堰塞坝 北川县城旧址 邓家 

分 类 号：TV223[水利工程—水工结构工程]