长混凝土坝坝顶位移监测方案对比分析  

Comparative Study on Crest Displacement Monitoring Scheme of Long Concrete Dam

作　　者：周鹤翔[1] ZHOU Hexiang(Powerchina 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：《西北水电》2020年第S02期127-130,135,共5页Northwest Hydropower

摘　　要：文章分析了引张线法、视准线法、交会法、真空激光准直系统等监测手段在混凝土坝位移监测中的技术特点及优缺点。基于某混凝土坝案例,从安全可靠性、效能、成本3方面对比分析监测方案优劣,总结了混凝土坝位移监测在方案拟定、方案比选的方面关键问题。In this paper,the technical characteristics,advantages and disadvantages of tension wire alignment,collimation line method,intersection method and vacuum laser collimation system in the displacement monitoring of concrete gravity dams are analyzed.Based on the case of a long concrete dam,the advantages and disadvantages of several monitoring plans are compared from the aspects of safety reliability,efficiency and cost.The key issues of displacement monitoring for concrete dams in plan making and selecting are summarized.

关 键 词：混凝土坝 大坝水平位移 引张线法 视准线法 真空激光准直系统 

分 类 号：TV698.1[水利工程—水利水电工程]