摘要
重点介绍采用极限平衡法对重力坝的抗滑稳定分析,主要核算坝体沿坝基面或地基深层软弱结构面抗滑稳定的安全度。该法简明方便,从目前国内外工程实践来看,该法可作为评定混凝土重力坝坝体和坝基抗滑稳定的可行方法。牛栏沟水电站在竣工验收中认定:"目前上下坝各坝段是稳定的,结构是安全的;大坝防渗效果良好;近坝库岸稳定,大坝运行正常"。
The summary places emphasis on performing the analysis of gravity dam stability agamst sttamg using the limit equilibrium method and on checking the degree of safety of the dam stability against sliding along the dam foundation face or deep foundation soft rock discontinuities. The method is simple and easy, which can be used to assess the stability against sliding of a concrete gravity dam and its foundation pit as viewed from the engineering practice at home and abroad at present. The completion acceptance report of Niulangou hydropower plant confirms that at the present time all the dam sections of both upper and lower dams are stable, their structures are safe; the dam is of good seepage control; the reservoir banks close to the dam are stable and the dam is under proper operation.
出处
《云南水力发电》
2014年第2期38-42,142,共6页
Yunnan Water Power
关键词
失稳
抗滑稳定
极限平衡法
加固
instability
stability against sliding
limit equilibrium method
reinforcement
