水力发电学报2012，Vol.31Issue(3)：188-193,198,7.
复杂裂隙岩体天然渗流场反演分析
Back analysis of natural seepage field in complicated fractured rock mass
摘要
Abstract
Topographic and geologic conditions of hydropower engineering are often complicated,and rock mass is featured by various kinds of joints and fissures,so its permeability is zonal and anisotropic.A 3D finite element model is developed for such complicated rock mass conditions at the Dagangshan hydropower station and its seepage field is studied with this model in combination with a quadratic programming method,permeability tensor analysis method and free-surface-fixed meshing method.Back analysis based on comparison of the calculated and observed water levels is used to calculate the natural seepage field and determine its boundary conditions and seepage parameters.This work provides a basis for analysis of other operating conditions and optimal seepage control schemes.关键词
岩石学/天然渗流场/反演分析/裂隙岩体/各向异性/三维有限元法Key words
petrology/natural seepage field/back analysis/fractured rock mass/anisotropic/3D FEM分类
建筑与水利引用本文复制引用
段斌,张林,何江达,符文熹,陈刚..复杂裂隙岩体天然渗流场反演分析[J].水力发电学报,2012,31(3):188-193,198,7.基金项目
国家自然科学基金 （）
国家973重点基础研究发展计划 （）
