| 掺入膨胀剂桩受力机理的试验研究 |
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| 引用本文： | 崔江余,郭永刚.掺入膨胀剂桩受力机理的试验研究[J].岩土力学,1998,19(2):49-53. |
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| 作者姓名： | 崔江余 郭永刚 |
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| 作者单位： | 太原理工大学数力系!030024(崔江余)，中国水利水电科学研究院抗震所!北京100044(郭永刚) |
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| 摘 要： | 对掺入膨胀剂的混凝土灌注桩受力机理进行了试验研究，通过对几组普通桩（不掺膨胀剂）和掺入膨胀剂的混凝土灌注桩试验结果分析，发现由于膨胀剂的膨胀作用，使灌注桩的承载性能发生了较大的变化，桩侧摩阻力和桩端阻力均得到提高；在相同荷载作用下，掺入膨胀剂的桩可明显减小桩顶沉降量，并使桩端阻力得以提前发挥。
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| 关 键 词： | 膨胀剂 刺入破坏 摩擦桩 端承摩擦桩 |
The Experiment Research of Bearing-force Mechanism of Concrete Pile with Expansion Agent |
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| Cui Jiangyu, Guo Yonggang.The Experiment Research of Bearing-force Mechanism of Concrete Pile with Expansion Agent[J].Rock and Soil Mechanics,1998,19(2):49-53. |
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| Authors: | Cui Jiangyu Guo Yonggang |
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| Abstract: | In this paper, bearing-force mechanism of concrete pile with expansion agent have been studied by model test. The test results for groups of commonly used concrete pile (no expansion agent) and concrete pile with expansion agent have been analysed and compared. Results show the bearing capacity have been changed because of the effects of expansion agent. Ultimate pile load is obviously increased. The failure characteristics of the concrete pile with expansion agent have also been changed in many aspects. |
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| Keywords: | expansion agent punching failure friction pile point bearing friction pile |
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