| 冻结井筒高强混凝土水化热规律研究 |
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| 引用本文： | 刘为国.冻结井筒高强混凝土水化热规律研究[J].煤炭科学技术,2008,36(3):51-52. |
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| 作者姓名： | 刘为国 |
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| 作者单位： | 安徽理工大学,安徽,淮南,232001 |
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| 摘 要： | 为了研究冻结井筒高强混凝土水化热规律,对井壁高强混凝土的水化放热规律作了试验研究,并结合有限元数值模拟分析发现:混凝土水化热对冻结壁的影响范围在0.5 m以内;井壁混凝土在浇筑后25～40d才进入负温养护,深冻结井井壁高强高性能混凝土的水化热最高温升一般发生在20～35h,比水利工程等大体积普通混凝土的最高温升提前了3～4d.
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| 关 键 词： | 高强混凝土 水化热 有限元 冻结井筒 |
| 文章编号： | 0253-2336(2008)03-0051-02 |
| 修稿时间： | 2007年10月15 |
Research on hydratation heat law of high strength concrete in mine freezing shaft |
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| LIU Wei-guo.Research on hydratation heat law of high strength concrete in mine freezing shaft[J].Coal Science and Technology,2008,36(3):51-52. |
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| Authors: | LIU Wei-guo |
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| Affiliation: | LIU Wei-guo(Anhui University of Science , Technology,Huainan 232001,China) |
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| Abstract: | In order to research the hydratation heat law of the high strength concrete in the mine freezing shaft, an experiment research was conducted on the hydratation heat law of the high strength concrete in the mine freezing shaft.In combined with the finite element numerical simulation analysis, it was found that the influence scope of the high strength concrete in the mine freezing shaft was within 0.5 m.After 25~40 days of the concrete pouring in the mine freezing shaft, the minus temperature curing of the co... |
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| Keywords: | high strength concrete hydratation heat finite element mine freezing shaft |
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