| PCC桩负摩阻力作用机理初探 |
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| 引用本文： | 张晓健,刘汉龙,费康,高玉峰.PCC桩负摩阻力作用机理初探[J].岩土力学,2005,26(Z1):91-93. |
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| 作者姓名： | 张晓健 刘汉龙 费康 高玉峰 |
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| 作者单位： | 河海大学 岩土工程研究所， 南京 210098 |
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| 摘 要： | 负摩阻力问题广泛存在于桩基工程中。PCC桩（现浇混凝土薄壁管桩）技术是河海大学自主研发的新型地基加固处理技术，而目前对PCC桩负摩阻力研究成果较少。结合以往研究实心桩的成果和PCC桩自身的特点，基于太沙基固结理论，探讨了PCC桩负摩阻力作用机理。研究表明，在PCC桩内部不产生负摩阻力，可以用原有方法计算外部负摩阻力，推导出其将在今后试验进一步验证。
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| 关 键 词： | 负摩阻力 PCC桩 太沙基固结理论 机理 |
| 收稿时间： | 2005-01-07 |
Study on mechanism for negative skin friction of cast-in-situ concrete thin-wall pipe pile |
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| ZHANG Xiao-jian,LIU Han-long,FEI Kang,GAO Yu-feng.Study on mechanism for negative skin friction of cast-in-situ concrete thin-wall pipe pile[J].Rock and Soil Mechanics,2005,26(Z1):91-93. |
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| Authors: | ZHANG Xiao-jian LIU Han-long FEI Kang GAO Yu-feng |
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| Institution: | Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | Negative skin friction resistance most possibly exists in piles engineering. Technology of PCC pile is a new ground improvement technology developed independently by Hohai University. Study on negative skin friction of PCC pile hasn’t been carried out. Combined with the previous results and the property of PCC pile, based on Terzaghi consolidation theory, mechanism of negative skin friction of PCC pile has been studied. The results indicated that the negative skin friction doesn’t exist on plug and outside negative friciton can be calculated by previous methods. Differential equation is concluded but it is needed to be proved by tests. |
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| Keywords: | negative skin friction PCC pile Terzaghi consolidation theory mechanism |
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