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

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.