摘要
高土石坝在蓄水后,坝体、坝基深厚覆盖层中的应力场与渗流场之间存在耦合作用。以建造在深厚覆盖层上的瀑布沟高心墙堆石坝为例,对蓄水后坝体的变形、应力、孔隙率、渗流量等要素的变化进行分析,量化研究了应力场和渗流场的耦合效应程度,结果表明考虑坝体和坝基深厚覆盖层的流固耦合效应,可以更加真实地反映高土石坝在蓄水后的工作性态。
The fluid-solid coupling effect exists in dam body and foundation of high earth-rock dam founded on deep overburden after reservoir impounding. Taking Pubugou high earth-rock dam as study case, the deformation, stress, porosity and seepage of dam after reservoir impounding are analyzed and the coupling effect of seepage field and stress field are quantitatively estimated. The calculation results show that there is obvious fluid-solid coupling effect in the dam and the performance of high earth-rock dam after reservoir impounding can be truly reflected after considering fluid-solid coupling effect.
出处
《水力发电》
北大核心
2014年第4期38-41,共4页
Water Power
基金
国家重点基础研究发展计划(973计划)(2013CB036404)
中国水利水电科学研究院专项(岩集1349)
关键词
深厚覆盖层
高土石坝
流固耦合效应
应力场
渗流场
瀑布沟水电站
deep overburden
high earth-rock dam
fluid-solid coupling effect
stress field
seepage field
Pubugou Hydropower Station
