摘要
重力坝岸坡坝段在开挖建基面时由于其地形限制而形成台阶式建基面,与河床坝段相比,岸坡坝段的稳定性分析更为复杂,针对台阶式岸坡坝段的稳定计算研究较少,基于重力坝岸坡坝段受力特性,结合毕肖普法、克莱法,推导出一种岸坡坝段的三维稳定分析方法,并以澜沧江干流上的某重力坝的左岸#11坝段为例,采用该方法进行建基面的稳定性分析。结果表明,#11坝段的稳定安全系数符合规范要求,证明推导出的稳定分析方法在台阶式岸坡坝段上的应用是可行的。
The stability analysis of the bank slope dam section of gravity dam is more complex than that of the riverbed dam section.At present,there are few studies on the stability calculation of the step slope dam section.In this paper,a three-dimensional stability analysis method of gravity dam bank section is derived based on the mechanical characteristics of gravity dam bank section combined with Bishop method and Clay method.Taking the#11 dam section on the left bank of a gravity dam on the main stream of Lancangjiang River as an example,the stability analysis of the foundation is carried out.The results show that the stability safety factor of the#11 dam section meets the requirements of the code,which proves that the application of the stability analysis method deduced in the stepped bank slope dam section is feasible.
作者
陈飞
卢晓春
陈博夫
冯程鑫
CHEN Fei;LU Xiao-chun;CHEN Bo-fu;FENG Cheng-xin(College of Hydraulic and Environmental Engineering,China Three Gorges University,Yichang 443002,China;College of Water Conservancy and Hydropower,Hohai University,Nanjing 210098,China)
出处
《水电能源科学》
北大核心
2019年第11期96-99,45,共5页
Water Resources and Power
基金
国家自然科学基金青年科学基金项目(51509142)
国家重点研发计划(2017YFC1501103)
关键词
岸坡坝段
三维稳定
安全系数
极限平衡
bank slope dam section
three-dimensional stability
safety factor
limit equilibrium
