平原水库库区三维渗流分析方法及渗控措施研究  

Researches on Three Dimensional Seepage Analysis Method and Seepage Control Measures for Plain Reservoir

作　　者：李杰[1] 严俊[2] 蔡红[2] 贾洪刚[1] 

机构地区：[1]中国长江电力股份有限公司,湖北宜昌443000 [2]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100048

出　　处：《水力发电》2016年第2期33-37,共5页Water Power

基　　金：国家重点基础研究发展计划(973计划)(2014CB047004);国家青年自然科学基金资助项目(51409278);中国水利水电科学研究院专项(岩基本科研1243)

摘　　要：平原水库具有围坝轴线较长、地质条件较差、蓄水水头较低、筑坝土料匮乏等特点,在开展三维渗流分析时存在建模区域大、数值分析时间长等问题。为此,在结点虚流量法的基础上,通过加密高斯点技术有效缩减有限元模型规模,减少数值分析时间,并结合红兴水库工程实际,建立了库区大区域三维有限元分析模型,并通过多方案的比较分析,优化了平原水库渗控设计。分析结果表明,该方法能够很好地适用平原水库渗流问题,可为同类型工程渗流分析及渗控措施优化提供参考。There are typical characteristics for plain reservoirs, including long dam axis, poor geological conditions, low water- head and lack of damming material, and in related three-dimensional seepage analysis process, there would be some problems, such as large modeling area and long numerical analysis time. In order to solve above problems, the Gaussian point encryption technology is introduced into the nodal virtual flux method. A typical plain reservoirs project in Honxing is chosen to validate the applicability of modified method. The detailed three-dimensional finite element analysis model for the large area in this project is established. Based on the calculation results, the seepage control design is optimized through the multi-program comparative analysis. The analysis results show that the modified method can well solve the seepage problem of plain reservoir and support the seepage analysis and seepage control measure for similar engineering.

关 键 词：平原水库 渗流特点 渗流分析方法 渗控措施 

分 类 号：TU457[建筑科学—岩土工程] TV223.4[建筑科学—土工工程]