某水电站拱坝横缝灌后张开原因分析  

Analysis on Opening of Transverse Joints after Grouting in an Arch Dam

作　　者：杨骁勇 文豪 王继刚 

机构地区：[1]国电大渡河流域水电开发有限公司库坝管理中心,四川乐山614900 [2]中国电建集团西北勘测设计院安全监测中心,陕西西安710065

出　　处：《水电与新能源》2014年第12期44-47,59,共5页Hydropower and New Energy

摘　　要：某水电站拱坝横缝在接缝灌浆完成后,部分横缝不同程度地张开,通过分析坝体各部位的应力应变和开合度等监测数据,研究拱坝施工期结构特点、温度变化、施工干扰等因素对横缝张开的影响,初步确定了导致横缝灌浆后张开的主要原因,并提出了相应的改进措施,对本工程下一阶段的施工和类似工程具有一定的借鉴意义。In the arch dam in a hydropower station , opening of the transverse joints are observed in some places after the joint grouting is finished .Based on the monitoring data about stress , strain and opening of the dam body , effects of the structural characteristics , changes of temperature and the construction interference in construction period on the opening of transverse joints are analyzed .Main reasons for this opening is determined .Some countermeasures are then proposed accordingly .

关 键 词：双曲拱坝 横缝 接缝灌浆 开合度 原因分析 

分 类 号：TV543[水利工程—水利水电工程] TV642.4