坝踵混凝土坝坝高对面板坝应力变形影响分析  

Influence of Dam Heel Concrete Dam Height on Stress and Deformation of Inlaid Concrete Face Rockfill Dam

作　　者：李思蕾 万克诚 王家元[1] LI Silei;WAN Kecheng;WANG Jiayuan(Northwest Engineering Corporation Limited,Xi’an 710065,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065

出　　处：《广东水利水电》2025年第2期44-50,共7页Guangdong Water Resources and Hydropower

摘　　要：基于三维有限元法,对不同混凝土坝坝高与常规混凝土面板坝设计方案进行对比分析,研究羊曲水电站混凝土坝高对镶嵌混凝土面板堆石坝的结构受力特征和应力变形的影响。结果表明:随着混凝土坝坝高的增加,堆石坝体、面板和混凝土坝的应力与变形均有所降低,尤其是面板的应力变形降低较为明显,接缝变形总体也有所减小。羊曲水电站工程常规面板坝和混凝土坝坝高为40 m、60 m、70 m时,镶嵌面板坝的应力与变形均在允许范围内,各方案技术上均可行。根据应力变形特性和面板坝工程技术经验,建议选择混凝土坝坝高为60 m的方案。Based on the three-dimensional finite element method,the influence of concrete dam height on the structural stress characteristics and stress deformation of inlaid concrete face rockfill dam is studied by comparing and analyzing the design schemes of different concrete dam heights and conventional concrete face rockfill dam.The results show that with the increase of concrete dam height,the stress and deformation of rockfill dam body,face slab and concrete dam are reduced,especially the stress and deformation of face slab are obviously reduced,and the joint deformation is also reduced.In this study,the stress and deformation of the conventional panel dam and the concrete dam dam with the height of 40 m,60 m and 70 m are all within the allowable range,and each scheme is technically feasible.Based on the stress deformation characteristics and technical experience in panel dam engineering,it is recommended to choose a concrete dam height scheme of 60 meters.

关 键 词：镶嵌混凝土面板堆石坝 混凝土坝 应力变形 有限元 

分 类 号：TV331[水利工程—水工结构工程]