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| 西宁泥岩后压浆桩承载性能试验研究 | |
| 引用本文： | 冯向强,任慧霞,缪云,戴国亮. 西宁泥岩后压浆桩承载性能试验研究[J]. 山东交通学院学报, 2011, 19(1): 56-60. DOI: 10.3969/j.issn.1672-0032.2011.01.013 |
| 作者姓名： | 冯向强 任慧霞 缪云 戴国亮 |
| 作者单位： | 1. 西宁海湖开发建设管理有限公司,青海,西宁,810012 2. 西宁市城市建设开发总公司,青海,西宁,810001 3. 东南大学,土木工程学院,江苏,南京,210096 |
| 摘 要： | 结合西宁湟水河大桥1根嵌岩桩桩底压浆前后的试验资料,对比分析了桩底压浆对嵌岩桩桩端阻力和桩侧摩阻力特性发挥的影响:嵌岩桩经过桩底压浆,改善了桩底沉渣的受力特性,增大了沉渣的强度和变形模量;在浆液压力下对桩侧泥皮进行置换填充,在一定程度上渗透挤密桩周泥岩,增强桩身与桩周、桩端整体嵌固能力,嵌岩桩整体承载力提高幅度为14%... |
| 关 键 词： | 嵌岩桩 承载性能 桩侧阻力 桩端阻力 桩底后压浆 |
Test on Bearing Behavior of Pile-Base Post-Grouting Rock-Socketed Pile in Argillaceous Area of Xining |
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| FENG Xiang-qiang,REN Hui-xia,MIAO Yun,DAI Guo-liang. Test on Bearing Behavior of Pile-Base Post-Grouting Rock-Socketed Pile in Argillaceous Area of Xining[J]. JOURNAL OF SHANDONG JIAOTONG UNIVERSITY, 2011, 19(1): 56-60. DOI: 10.3969/j.issn.1672-0032.2011.01.013 | |
| Authors: | FENG Xiang-qiang REN Hui-xia MIAO Yun DAI Guo-liang |
| Affiliation: | FENG Xiang-qiang1,REN Hui-xia2,MIAO Yun3,DAI Guo-liang3 (1.Xining Haihu Development and Administration Co.Ltd,Xining 810012,China,2.Xining Construction and Development Co.Ltd,Xining 810001,3.School of Civil Engineering,Southeast University,Nanjing 210096,China) |
| Abstract: | Based on the test data of a socketed pile before and after pile-base post-grouting in Xining Huangshui river bridge,the influence of rock-socketed pile on exertion of side resistance and tip resistance were analyzed: through pile-base post-grouting for socketed pile,the characteristics of sediment is improved obviously which increased the strength and reduced deformation of sediment;at the same time,under the pressure of slurry mud the pile skin replaced and filled,the soft rock around the pile after pile i... |
| Keywords: | socketed pile bearing behavior side resistance of a pile tip resistance of a pile post-grouting |
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