基于FLAC3D的万家口子高拱坝整体稳定安全度研究  

Stabilization Safety Degree for Wanjiakou High Arch Dam Based on FLAC3D

作　　者：唐浩[1,2] 蔡德所[3,4,5] 解凌飞[2] 

机构地区：[1]武汉大学土木建筑工程学院,湖北武汉430070 [2]广西电力工业勘察设计研究院,广西南宁530023 [3]三峡大学水利与环境学院,湖北宜昌443002 [4]广西大学土木建筑工程学院,广西南宁530004 [5]广西水利电力勘测设计研究院,广西南宁530023

出　　处：《广西师范大学学报（自然科学版）》2012年第4期184-192,共9页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(50809017);中央分成水资源费资助项目(2010-2011)

摘　　要：采用三维快速拉格朗日法软件FLAC3D对万家口子高碾压混凝土拱坝坝基加固处理方案进行坝体-坝基变形、应力分析。采用超载法研究大坝及坝基的渐进破坏过程和可能的失稳模式。研究结果表明坝体-坝基变形、应力满足规范要求,系统整体安全度为4.0,基本满足设计要求。极限承载力由坝踵处的Ⅳ类岩体、左岸坝肩不整合面和节理群的强度共同控制。This paper adopts FLAC3D software based on 3D fast Lagrangian method to calculate the deformation and stress of Wanjiakou High RCC Arch Dam. The water-level overcharge method is used to simulate the gradual destruction process and unstabilization model of the arch dam and base system. The results show that the deformation and stress of Wanjiakou High Arch Dam and base can meet the standard requirement. The overall stabilization safety degree of the system is 4.0 and can meet the design requirement. The limit loading capacity of the arch dam and base system is commonly controlled by the strength of IXI class rock in the dam heel,the unconformity surface and the joint groups in left bank abutment.

关 键 词：整体稳定安全度 超载法 FLAC3D 快速拉格朗日法 万家口子高拱坝 变形 应力 

分 类 号：TV642[水利工程—水利水电工程]