水利工程中大体积混凝土温控防裂措施研究  

Research on the Temperature Control and Crack Prevention Measures of Mass Concrete in Water Conservancy Engineering

作　　者：马己安 张鑫华[1] MA Ji'an;ZHANG Xinhua(Yangling Vocational and Technical College,Yangling,Shaanxi Province,712100 China)

机构地区：[1]杨凌职业技术学院,陕西杨凌712100

出　　处：《科技资讯》2023年第16期158-161,共4页Science & Technology Information

基　　金：杨凌职业技术学院科技创新项目“基于支持向量机的东庄大坝施工期温度监测数据关联规则挖掘与研究”(项目编号:ZK22-04);杨凌职业技术学院科技创新项目“预防大体积混凝土温度裂缝施工方法研究”(项目编号:ZK22-10);杨凌职业技术学院教育教学改革研究项目“基于东庄公司校企合作平台的‘双师型’教师工程实践能力提升研究与实践”(项目编号:JG22007)。

摘　　要：混凝土材料作为大型建筑物的主要建筑材料,因其原材料丰富、价格低廉、经久耐用等特点被广泛应用于工程建筑领域,其在水利工程中的应用更为普遍。对大体积混凝土建筑物,混凝土施工过程中的温度控制不当容易产生温度应力,当其超过允许指标后易产生温度裂缝,破坏建筑物的稳定性。因此,对于以混凝土作为主要材料的大坝,如何控制温度以避免产生温度裂缝是其在建造过程中的重要技术指标。该文结合实际工程就大体积混凝土浇筑过程中温度裂缝的产生原因与工程建设过程中混凝土温度控制的各项措施进行了讨论,希望对类似工程提供技术参考。As the main building material of large buildings,concrete materials are widely used in the field of engineering construction because of their rich raw materials,low price,durability and other characteristics,and their application in water conservancy engineering is more common.For mass concrete buildings,improper temperature control during concrete construction is easy to produce temperature stress,and it is easy to produce temperature cracks and damage the stability of the building when it exceeds the allowable index.Therefore,for dams with concrete as the main material,how to control temperature to avoid temperature cracks is an important technical index in the construction process.This paper discusses the causes of temperature cracks during mass concrete pouring and various measures for concrete temperature control during engineering construction in combination with practical projects,hoping to provide technical reference for similar projects.

关 键 词：大体积混凝土 温度控制 防裂 大坝 温度裂缝 

分 类 号：TV544[水利工程—水利水电工程]