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溢流坝加固改造之挡水墙结构形式比选
引用本文:唐杨1,田俊国2,唐卫国2,林锦霞3,王国炜4?. 溢流坝加固改造之挡水墙结构形式比选[J]. 厦门理工学院学报, 2022, 0(3): 64-68. DOI: doi:1019697/jcnki16734432202203009
作者姓名:唐杨1  田俊国2  唐卫国2  林锦霞3  王国炜4?
作者单位:(1 五峰土家族自治县农村公路管理所, 湖北 宜昌 443413; 2 国网湖北省电力有限公司五峰县供电公司, 湖北 宜昌 443413; 3 中国电建集团华东勘测设计研究院有限公司, 浙江 杭州 311122; 4 山东金衢设计咨询集团有限公司, 山东 济南 250014)
摘    要:为寻找合适的溢流坝挡水墙加固形式,以湖北省五峰县境内龙洞电站溢流坝改造项目为工程背景,采用Midas FEA建立有限元模型,对比分析砌体挡水墙和混凝土挡水墙的受力状态,比选最适宜的挡水墙结构形式。结果表明,砌体挡水墙无法满足结构的受力要求,其最大竖向拉应力达到砌体挡水墙弯曲抗拉强度平均值的2倍;混凝土挡水墙能够满足结构的受力要求,且有一定的安全储备。故采用混凝土挡水墙加固改造溢流坝,并在混凝土挡水墙的迎水面设置钢筋网,加大挡水墙的埋置深度。

关 键 词:溢流坝  加固改造  混凝土挡水墙  砌体挡水墙  结构受力  有限元分析

Comparison and Selection of Water Retaining Wall Structural Forms in Reinforcement and Reconstruction of Overflow Dams
TANG Yang,TIAN Junguo,TANG Weiguo,LIN Jinxia,WANG Guowei. Comparison and Selection of Water Retaining Wall Structural Forms in Reinforcement and Reconstruction of Overflow Dams[J]. Journal of Xiamen University of Technology, 2022, 0(3): 64-68. DOI: doi:1019697/jcnki16734432202203009
Authors:TANG Yang  TIAN Junguo  TANG Weiguo  LIN Jinxia  WANG Guowei
Affiliation:(1.Rural Highway Maintenance,Wufeng Tujia Autonomous County,Yichang 443413,China;2.Wufeng Power Supply,State Grid Hubei Electric Power Corporation,Yichang 443413,China;3.Power China Huadong Engineering Corporation,Hangzhou 311122,China;4.Shandong Jinqu Design Consulting,Jinan 250014,China)
Abstract:To find effective reinforcement for the overflow dam retaining wall,a finite element model was established using Midas FEA on the case of the overflow dam reconstruction project of Longdong Power Station in Wufeng County,Hubei Province,and masonry retaining wall and concrete retaining wall were compared and analyzed so that the most suitable structural form of the retaining wall was selected.The results show that the masonry retaining wall cannot meet the stress requirements of the structure,and its maximum vertical tensile stress is twice the average bending tensile strength of the masonry retaining wall,while the concrete retaining wall can meet the stress requirements of the structure with a certain safety reserve.Therefore,the overflow dam is reinforced and transformed with a concrete retaining wall with a steel mesh set on its upstream surface to increase the embedding depth of the retaining wall.
Keywords:overflow dam   reinforcement and reconstruction   concrete retaining wall   masonry retaining wall   structural stress   finite element analysis
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