新疆某水库砂砾石混凝土面板坝设计及变形评价  

Design and Deformation Evaluation of a Sand Gravel Concrete Faceplate Dam for a Reservoir in Xinjiang

作　　者：秦文保 QIN Wenbao(XPCC Surveying&Designing Institute(Group)Co.,Ltd.,Urumqi 830000 China)

机构地区：[1]新疆兵团勘测设计院(集团)有限责任公司,新疆乌鲁木齐830000

出　　处：《云南水力发电》2023年第11期135-138,共4页Yunnan Water Power

基　　金：国家自然科学基金——雅砻江联合基金重点项目(L11765203)。

摘　　要：鉴于该工程混凝土面板砂砾石坝坝料总体上偏细,为合理控制砂砾石填筑变形量,在坝料设计过程中对各个填筑料提出适合指标,同时,在坝内设计设置排水烟囱,确保坝内水快速排出.通过建立大坝、砂砾石覆盖层、防渗体的有限元模型,填筑料静力本构采用邓肯张E-B模型,分析了坝体变形能力.结果表明:坝体在竣工期、正常运行期时的变形规律合理.防渗体应力满足规范要求,周边缝变形量满足设计所提允许值.结合计算分析成果可知设计方案合理.The overall material for the concrete faced gravel dam of this project is relatively fine.In order to reasonably control the deformation of sand and gravel filling,suitable indicators are proposed for each filling material during the dam material design process.At the same time,drainage chimneys are designed and installed inside the dam to ensure rapid drainage of water inside the dam.By establishing a finite element model of the dam,gravel cover layer,and anti-seepage body,the static constitutive model of the filling material was used to analyze the deformation capacity of the dam body using Duncan Zhang E-B model.The results indicate that the deformation pattern of the dam body during the completion and normal operation periods is reasonable.The stress of the anti-seepage body meets the requirements of the specifications,and the deformation of the surrounding joints meets the allowable values provided in the design.Based on the calculation and analysis results,it can be concluded that the design scheme is reasonable.

关 键 词：混凝土面板砂砾石坝 变形控制 有限元分析 邓肯张E-B模型 

分 类 号：TV641[水利工程—水利水电工程]