STUDY ON TEMPERATURE CONTROL OF MASS CONCRETE IN XUANWU LAKE TUNNEL
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摘要: 根据胶凝材料水化热试验的数据,通过一定的理论假设,近似估算出混凝土墙体在各龄期、各部位的温差,并与温度实测数据进行了比较,证明了玄武湖隧道大体积混凝土的水化热引起内外最大温差在25℃以内,符合工程提出的要求。Abstract: According to the testing data of binding material hydration heat, temperature differences at every setting time and every part of the concrete walls can be estimated approximately by a certain theoretical hypothesis.It is proved that the maximal temperature differences of mass concrete in Xuanwu Lake Tunnel which caused by hydration heat were within 25℃,and they were accorded with the requirements proposed by engineering.
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Key words:
- tunnel /
- concrete /
- differences in temperature /
- crack
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[2] 朱伯芳,王同生,丁宝瑛.水工混凝土结构的温度应力与温度控制.北京:水利电力出版社,1976 马丽缓,姚燕,田培,等.国内外混凝土的收缩性能及抗裂性能试验研究方法评述.中国建筑技术,2001(1):27~31 [3] 刘江南,唐春.混凝土墙板的水化热温升计算浅探.南昌水专学报,2000(1):13~17 [4] 天津大学,同济大学,西安冶金建筑学院.传热学北京:中国建筑工业出版社,1980
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