岑威钧, 王修信. Analysis on the Stress and Deformation Characters of Core Wall Type Earth-rockfill Dam on the Collapsible Foundation[J]. 2008, (1): 42-44+63.
岑威钧, 王修信. Analysis on the Stress and Deformation Characters of Core Wall Type Earth-rockfill Dam on the Collapsible Foundation[J]. 2008, (1): 42-44+63.DOI:
湿陷性地基上心墙土石坝应力变形特性分析
摘要
利用非线性有限元法
对某湿陷性地基上土石坝进行结构分析。计算中考虑了渗流的作用和土石料的湿陷效应。研究表明
较为深厚和软弱的地基上的心墙坝的变形分布较一般土石坝复杂
应力分布也相对不规则。当地基伴有湿陷性时
这种复杂和不规则程度会进一步加剧
进而影响大坝的安全性。因此
在对这类大坝进行设计时
应充分考虑这些不利因素。
Abstract
The nonlinear finite element method is applied to calculate the stress and deformation of a core wall type earth-rockfill dam on collapsible foundation.In the calculation the seepage and collapsible behaviors of soil-rockfill are considered during the first water impounding.The distribution of deformation and stress of the soil-rockfill dam on deep
soft and collapsible foundation will become more difficult than on the general foundation conditions.The disadvantage conditions must be forecasted sufficiently for the designers.