摘要
以200m级高的光照混凝土重力坝12号典型溢流坝段为研究对象,借助于结点虚流量法、排水子结构和排水孔开关器技术,用三维渗流有限单元法,计算分析大坝渗流场各主要影响因素的作用,研究坝体和坝基的渗流特性,经过对比和综合分析,得出坝基的优选渗控方案,并评估设计扬压力水头图形的可靠性、合理性和安全性.
With the No.12 typical overflow dam section of the Guangzhao concrete gravity dam of 200m in height as an object for study, the main factors affecting the seepage field around the dam were analyzed by use of the method of nodal virtual flow rate, the techniques of drainage substructures and drainage hole switches, and the 3-D finite element method. Through comprehensive analysis of the characteristics of seepage through the dam body and dam foundation, an optimal scheme for seepage control of the dam foundation was proposed, and the reliability, rationality, and safety of the water head figure for the designed uplift were evaluated. Furthermore, some reasonable suggestions were put forward.
出处
《水利水电科技进展》
CSCD
2004年第5期37-40,共4页
Advances in Science and Technology of Water Resources
关键词
重力坝
渗控方案
排水子结构
数值模拟
gravity dam
seepage control scheme
drainage substructure
numerical simulation
