| 混凝土水化热对深井冻结壁冻融规律影响的实测研究 |
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| 引用本文： | 余波江,汪仁和,李栋伟. 混凝土水化热对深井冻结壁冻融规律影响的实测研究[J]. 煤炭工程, 2011, 0(10): 80-82 |
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| 作者姓名： | 余波江 汪仁和 李栋伟 |
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| 作者单位： | 安徽理工大学土木建筑学院,安徽淮南,232001 |
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| 基金项目： | 高等学校博士学科点专项科研基金(200803610004) |
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| 摘 要： | 根据冻结井筒大体积混凝土水化热现场实测结果，获得混凝土水化热对冻结壁的影响规律：由于井壁混凝土水化热影响冻结壁融化0.2-0.4m，约为外壁厚度的0.43-0.5倍，重新冻结后产生回冻冻胀力0.45-0.80MPa。结合对实测数据的分析和ADINA有限元程序的数值模拟，得出了冻结壁融化深度与时间的关系曲线，对指导深井冻结壁设计与施工具有重要的指导意义。
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| 关 键 词： | 混凝土水化热 深井冻结壁 ADINA FEM 冻融温度场 |
Site Measuring Study on Hydrated Thermal of Concrete Affected to frost draw law of Freezing Shaft Wall in Deep Mine Shaft |
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| YU Bo-jiang,WANG Ren-he,LI Dong-wei. Site Measuring Study on Hydrated Thermal of Concrete Affected to frost draw law of Freezing Shaft Wall in Deep Mine Shaft[J]. Coal Engineering, 2011, 0(10): 80-82 |
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| Authors: | YU Bo-jiang WANG Ren-he LI Dong-wei |
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| Affiliation: | YU Bo-jiang,WANG Ren-he,LI Dong-wei(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,China) |
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| Abstract: | According to the site measured results of the large volume concrete hydration thermal in the mine freezing shaft,the influence law of the concrete hydration thermal to the mine freezing shaft was obtained.The hydration thermal of the mine shaft concrete could affect the freezing wall thawing with 0.2~0.4m,which would be 0.43~0.5 times of the thickness of the mine shaft outer wall.The refreezing swelling force occurred from the refreezing would be 0.45~0.80MPa.With the analysis on the site measured data and ... |
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| Keywords: | hydrated thermal of concrete freezing shaft wall in deep mine shaft freezing and thawing temperature field Freezing and thawing law |
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