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| 坝陵河大桥深嵌岩桩竖向承载力试验 | |
| 引用本文： | 龚成中,何春林,戴国亮.坝陵河大桥深嵌岩桩竖向承载力试验[J].建筑科学与工程学报,2011,28(4):43-47. |
| 作者姓名： | 龚成中 何春林 戴国亮 |
| 作者单位： | 1. 东南大学土木工程学院,江苏南京210096;淮阴工学院建筑工程学院,江苏淮安 223001 2. 淮阴工学院建筑工程学院,江苏淮安,223001 3. 东南大学土木工程学院,江苏南京,210096 |
| 基金项目： | “十一五”国家科技支撑计划项目(2008BAG07B01) |
| 摘 要： | 以贵州坝陵河大桥2根深嵌岩桩基为研究对象,利用自平衡测试技术检测了桩基的竖向承载力,对测试结果进行了讨论；分析了深嵌岩桩基的桩侧摩阻力、桩端阻力的发挥程度及其影响因素.研究结果表明:该地区大直径深嵌岩桩桩顶的荷载-位移曲线主要是以缓变型为主；从桩侧岩层摩阻力来看,勘探报告所提供的岩层极限侧摩阻力数值偏小；从桩侧摩阻力、桩端阻力分布来看,在软岩地区嵌岩深度大小对承载力影响较大,嵌岩比越大,则相应的承载力越大,变形越小. |
| 关 键 词： | 深嵌岩桩 自平衡法 桩侧摩阻力 桩端阻力 竖向承载力 桩基 |
Experiment on Vertical Bearing Capacity of Deep Rock-socketed Pile for Baling River Bridge |
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| GONG Cheng-zhong , HE Chun-lin , DAI Guo-liang.Experiment on Vertical Bearing Capacity of Deep Rock-socketed Pile for Baling River Bridge[J].Journal of Architecture and Civil Engineering,2011,28(4):43-47. | |
| Authors: | GONG Cheng-zhong HE Chun-lin DAI Guo-liang |
| Affiliation: | GONG Cheng-zhong1,2,HE Chun-lin2,DAI Guo-liang1(1.School of Civil Engineering,Southeast University,Nanjing 210096,Jiangsu,China,2.School of Architecture and Civil Engineering,Huaiyin Institute of Technology,Huai'an 223001,China) |
| Abstract: | Based on the piled foundation testing of 2 deep rock-socked piles from Baling River Bridge of Guizhou Province and self-balanced testing technique,the vertical bearing capacity of piled foundation was tested and the testing results were discussed.The exertion of frictional resistance of pile side and resistance of pile tip of piled foundation of deep rock-socked pile,and the influential factors of them were analyzed.The study results indicate that load-displacement curve of large diameter and deep rock-sock... |
| Keywords: | deep rock-socketed pile self-balanced method frictional resistance of pile side resistance of pile tip vertical bearing capacity piled foundation |
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