水利学报2017，Vol.48Issue(2)：175-183,9.DOI:10.13243/j.cnki.slxb.20160361
锦屏一级高拱坝整体稳定物理与数值模拟综合分析
Experimental and numerical comprehensive analysis on overall stability of Jinping Ⅰ high arch dam
摘要
Abstract
The overall stability of the high arch dam is one of the key issues in construction of the project.Geo-mechanical model test and numerical calculation are the main methods to study this issue.JinpingⅠ high arch dam is featured with complicated geologic structures of various types of faults,dykes,joints and fissures,and its overall stability is greatly influenced by these structures.It has great dam height and huge capacity of the reservoir,and the reinforcement was difficult.In this paper,firstly,the evaluation basis for the safety factor of dam stability is established based on the comprehensive method.Than adopted the methods of 3D geo-mechanical model test and 3D nonlinear FEM calculation to study the overall stability of Jinping Ⅰ high arch dam under the condition of reinforced foundation.The workability of the arch dam under normal conditions,and the deformation characteristics,failure patterns and mechanisms of the dam abutment and foundation are obtained.The analysis shows that the overall stability of safety coefficient is 5.2～6.0 by comprehensive model test and 5.98 by comprehensive FEM computation.The overall stability of Jinping Ⅰ high arch dam is evaluated synthetically by combining the results of the two methods.The research results provide an important scientific basis for monitoring and safe operation of the project.It also can provide a reference for the stability analysis of other high arch dams.关键词
高拱坝工程/整体稳定性/物理模拟/数值计算/综合分析Key words
high arch dam project/overall stability/physical simulation/numerical calculation/comprehensive analysis分类
建筑与水利引用本文复制引用
杨宝全,张林,陈媛,陈建叶,董建华..锦屏一级高拱坝整体稳定物理与数值模拟综合分析[J].水利学报,2017,48(2):175-183,9.基金项目
国家自然科学基金项目(51409179,51379139) （51409179,51379139）
四川大学“优秀青年教师海外访学计划”项目 （）
