期刊文献+

基于强度折减理论的水位下降坝坡稳定性分析 被引量:5

Stability Analysis of Dam Slope During Rapid Drawdown with Strength Reduction
下载PDF
导出
摘要 为了能够准确地分析某水库在水位下降期坝坡的稳定性,基于非饱和土流固耦合理论和强度折减有限元法,利用Geo Studio数值模拟软件进行数值模拟,根据模拟结果对该水库在水位下降的情况下进行了边坡稳定性分析。结果表明:水位下降时,由于坝体孔隙水压力消散较慢,水位滞后于库内水位,从坝顶到迎水坡坡脚形成了塑性应变联通区域,特征点位移突变且位移等值线分布密集,表明此处为可能潜在最危险滑动面,并基于强度折减法确定了安全系数值。 In order to accurately analyze the stability of the dam slope during the drop of water level,based on fluidsolid coupling theory of unsaturated soil and strength reduction finite element method,this research adopted the numerical simulation software Geostudio. The numerical simulation model was developed and the dam seepage was analyzed during the water falling period. The results indicates that pore water pressure in the dam body dissipates slower in the calculation area,lagging behind the water falling level,plastic strain area creates from the dam crest to the foot of the upper stream batter,feature point displacement suddenly changes and the displacement contour distributes closely,which indicates that it is the most potential dangerous sliding surface and the safety factor was then determined based on strength reduction method.
作者 费野 占否平 FEI Ye ZHAN Fouping(Hebei Research Institute of Construction and C, eotechnical Investigation Co., Ltd., Shijiazhuang, Hebei 050031, China)
出处 《水利与建筑工程学报》 2017年第1期214-218,共5页 Journal of Water Resources and Architectural Engineering
关键词 库水位下降 坝坡稳定 流固耦合 强度折减法 安全系数 rapid drawdown of reservoir level stability of dam slope fluid-solid coupling strength reduction factor of safety
  • 相关文献

参考文献10

二级参考文献92

共引文献406

同被引文献52

引证文献5

二级引证文献19

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部