| 三岔挤扩灌注桩与直孔桩的工程应用及现场试验对比分析 |
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| 引用本文： | 田文野. 三岔挤扩灌注桩与直孔桩的工程应用及现场试验对比分析[J]. 特种结构, 2012, 29(2): 112-117,58 |
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| 作者姓名： | 田文野 |
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| 作者单位： | 北京市市政工程设计研究总院 100082 |
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| 摘 要： | 本文对实际工程中三岔挤扩灌注桩(简称DX桩)与直孔桩的抗压试验数据进行了对比分析,分析表明由于三岔挤扩灌注桩有承力盘或承力岔,其受力呈现为摩擦端承桩受力模式,相比直孔桩其具有承载能力大、沉降小的良好受力性能,三岔挤扩灌注桩具有很好的工程应用前景。
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| 关 键 词： | 三岔挤扩桩 DX桩 直孔桩 承力岔 承力盘 |
Engineering Applications and On-site Experimental Comparative Analysis of DX Piles and Isometric Section Piles |
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| Tian Wenye. Engineering Applications and On-site Experimental Comparative Analysis of DX Piles and Isometric Section Piles[J]. Special Structures, 2012, 29(2): 112-117,58 |
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| Authors: | Tian Wenye |
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| Affiliation: | Tian Wenye (Beijing General Municipal Engineering Design and Research Institute,100082) |
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| Abstract: | The tested data between cast-in-place piles with expanded branches and bells by 3-way extruding arms （ DX piles ） and isometric section piles were analyzed and contrasted in this paper. DX piles present friction and multi- point bearing piles modes because DX piles have branches bearings and bell bearings. Therefore, DX piles take on big- ger bearing capacity and less sedimentation than isometric section piles. DX piles can be widely applied to bridge-foun- dation engineering. |
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| Keywords: | Cast-in-place piles with expanded branches and bells by 3-way extruding arms DX piles Isomet-ric section piles Branch bearing Bell bearing |
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