大坝砼面板裂缝处理应用与研究  

Processing of Cracks on Concrete Dam

作　　者：李文鹏[1] 李连喜[1] 张增涛[1] 

机构地区：[1]新疆水利水电勘测设计研究院勘测总队,新疆昌吉831100

出　　处：《长江科学院院报》2010年第9期70-73,82,共5页Journal of Changjiang River Scientific Research Institute

摘　　要：混凝土结构的裂缝是不可避免的,产生裂缝的原因错综复杂,形式多样。大坝砼面板的裂缝直接影响到面板的耐久性和使用寿命,进行适当处理十分必要。介绍了某工程砼面板裂缝的分布及其特点,初步分析了形成裂缝的原因;参考类似工程的经验,提出了两类裂缝的不同处理标准;介绍了裂缝处理的4种主要材料的性能指标和适用范围;阐述了2类裂缝处理的施工工艺、质量控制及效果检测。Cracks in concrete structures are unavoidable, the reasons occurring cracks are complex, and their forms are multiplex. Because cracks in the dam concrete panels would directly affect the durability and service life of the panel, appropriate treatment is necessary. The paper introduces the distribution and characteristics of cracks on the concrete panels of some project, gives a preliminary analysis on the formation of cracks; it refers the experience of similar projects, proposes different treatment standards of two types of cracks; and it describes the performance indexes and their application scopes of four major materials used in concrete crack treatment, and represents the construction processes, quality controls and effectiveness detection of two types of cracks.

关 键 词：面板裂缝 裂缝特点 裂缝处理 表面封闭 化学灌浆 

分 类 号：TV544[水利工程—水利水电工程]