| 基于波速孔压静力触探试验研究软土中单桩桩侧承载力时效性 |
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| 引用本文： | 曹权,施建勇,雷国辉,艾英钵,陈鸿.基于波速孔压静力触探试验研究软土中单桩桩侧承载力时效性[J].岩石力学与工程学报,2011,30(7):1482-1487. |
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| 作者姓名： | 曹权 施建勇 雷国辉 艾英钵 陈鸿 |
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| 作者单位： | (1. 河海大学 岩土工程研究所，江苏 南京 210098；2. 河海大学 岩土力学与堤坝工程教育部重点实验室，江苏 南京 210098；;
3. 深圳市市政设计研究院有限公司，广东 深圳 518029) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 根据波速孔压静力触探探头和静压桩在软黏土中贯入的特点，建立以波速孔压静力触探试验参数计算软土中静压桩的单桩桩侧承载力时效性的理论解，利用该解可以预测饱和软土中沉桩结束后桩侧承载力随时间的变化。与传统桩的承载力时效性简化分析方法不同，该理论解不仅考虑多土层地基中不同土的刚度指数的差异对固结过程的影响，还考虑因各土层固结系数不同而导致消散速率不同的影响。现场不同间歇期的单桩载荷试验测试结果验证该理论解的合理性。
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| 关 键 词： | 桩基工程波速孔压静力触探试验静压桩饱和软黏土单桩桩侧承载力时效性 |
| 收稿时间： | 2010-12-30; |
RESEARCH ON TIME-EFFECT OF SHAFT BEARING CAPACITY OF JACKED-IN SINGLE PILE IN SOFT SOIL BASED ON SEISMIC PIEZOCONE PENETRATION TESTS(SCPTU) |
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| CAO Quan,SHI Jianyong,LEI Guohui,AI Yingbo,CHEN Hong.RESEARCH ON TIME-EFFECT OF SHAFT BEARING CAPACITY OF JACKED-IN SINGLE PILE IN SOFT SOIL BASED ON SEISMIC PIEZOCONE PENETRATION TESTS(SCPTU)[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(7):1482-1487. |
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| Authors: | CAO Quan SHI Jianyong LEI Guohui AI Yingbo CHEN Hong |
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| Affiliation: | (1. Geotechnical Research Institute，Hohai University，Nanjing，Jiangsu 210098，China；2. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering，Hohai University，Nanjing，Jiangsu 210098，China；3. Shenzhen Municipal Design and Research Institute Co.，Ltd.，Shenzhen，Guangdong 518029，China) |
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| Abstract: | According to the characteristics of installation about the seismic piezocone penetration tests(SCPTU) penetrometer and the pile,a theoretical relationship between time-effect of shaft bearing capacity of single pile and the data measured from SCPTU is developed,which can be used to predict the variation of shaft bearing capacity of a jacked-in pile with time in saturated soft clay.Different from the traditional way,the effect of different stiffness index and consolidation coefficient on the consolidation pr... |
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| Keywords: | pile foundations seismic piezocone penetration tests(SCPTU) jacked-in pile saturated soft clay time-effect of shaft bearing capacity of single pile |
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