大坝混凝土的温度控制与防裂新措施  

Dam Concrete Temperature Control and New Anti-cracking Measures

作　　者：李万军[1] 

机构地区：[1]四川大学水利水电学院,四川成都610065

出　　处：《水电站设计》2006年第3期6-10,共5页Design of Hydroelectric Power Station

摘　　要：扼要叙述了温控设计的基本要点、混凝土特性对温度应力设计的影响。概述了提高大坝抗裂能力的主要因素,并从体积变形来研究温控问题。着重介绍了MgO混凝土筑坝技术、防裂补偿原理、基本特征、筑坝理论体系,并用实例说明了应用概况和效果。This paper gives a brief presentation of temperature control basic main points and effects of concrete properties on temperature stress. In the paper main factors for improving anti - cracking capability of concrete dams are described, temperature control problem is studied from volumetric changes of dam concrete, in particular MgO concrete dam construction technology, the anti - cracking principle, basic characteristics, dam construction theory system are presented and examples are given to illustrate effectiveness of its application.

关 键 词：大体积砼 温度应力 温控设计 MgO膨胀砼 防裂措施 

分 类 号：TV544[水利工程—水利水电工程]