摘要
某混凝土重力坝为了满足供水需求拟加高,通过计算分析重力坝加高后在各种工况下坝体和基础的应力规律及稳定性,特别是坝踵、坝趾,判断其拟定加高方案的可行性。计算结果表明,加高后坝体的应力分布整体上符合重力坝一般规律,用两种抗滑稳定分析方法计算的安全系数均能满足规范要求。因此,该加高方案安全可行。
In order to satisfy the demand on water supply, a concrete gravity dam is intended to be heightened. The stress distribution law and the stability of dam body and foundation under different operation conditions after heightening are calculated and analyzed herein, especially in the position of dam heel and toe, to determine the feasibility of heightening scheme. The results indicate that the overall stress distribution of heightening dam body accords with the general rule of gravity dam, and the safety factors which are calculated by using two anti-sliding stability analysis methods can meet the requirements of specification. Therefore, the heightening scheme is safe and feasible.
出处
《水力发电》
北大核心
2015年第4期46-49,共4页
Water Power
基金
国家自然科学基金资助项目(51379068
51139001)
江苏省杰出青年基金项目(BK20140039)
新世纪优秀人才支持计划资助项目(NCET-11-0628)
高等学校博士学科点专项科研基金项目(20120094110005)
关键词
重力坝
加高
应力
稳定性
gravity dam
heightening
stress
stability
