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| 后压浆超长桩试验桩侧负摩阻力机理分析 | |
| 引用本文： | 刘前进,邱峡,梁锋,周同和. 后压浆超长桩试验桩侧负摩阻力机理分析[J]. 建筑技术, 2009, 40(9): 840-842 |
| 作者姓名： | 刘前进 邱峡 梁锋 周同和 |
| 作者单位： | 1. 河南省公路工程局集团有限公司,450000,郑州 2. 新县监理责任有限公司,460000,河南新县 3. 河南科正基础工程有限公司,450002,郑州 4. 郑州大学综合设计研究院,450002,郑州 |
| 摘 要： | 某工程超长桩现场静载荷试验，采用分布式光纤技术测算桩身轴力和桩侧摩阻力。光纤测量结果表明．在超长桩桩侧存在一定的负摩阻段。从桩侧土体液化和孔隙水压力变化等角度分析负摩阻力形成和发展的机理与原因，对后压浆超长桩的理论研究和工程应用有重要价值。 |
| 关 键 词： | 光纤测量 后压浆 桩侧负摩阻力 |
STUDY ON NEGATIVE FRICTION MECHANISM OF SUPER-LONG POST-GROUTING PILE TEST |
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| LIU Qianjin,QIU Xia,LIANG Feng,ZHOU Tonghe. STUDY ON NEGATIVE FRICTION MECHANISM OF SUPER-LONG POST-GROUTING PILE TEST[J]. Architecture Technology, 2009, 40(9): 840-842 | |
| Authors: | LIU Qianjin QIU Xia LIANG Feng ZHOU Tonghe |
| Affiliation: | LIU Qianjin, QIU Xia,LIANG Feng, ZHOU Tonghe (1.Henan Highway Engineering Bureau Group Co., Ltd.,450000,Zhengzhou,China; 2.Xinxian Supervision Ltd.,460000,Xinxian, Hennan, China; 3.Hennan Kezheng Foundation Engineering Ltd.,450002, Zhengzhou, China; 4.Zhengzhan University Multi-functional Design and Research Academy, 450002, Zhengzhou, China) |
| Abstract: | In-situ static load test of super-long piles using distributed optical fiber technique is studied in this paper. The measurements of the axial and lateral stress of the piles show that there are negative friction zones along the super-long pile. From both the soil liquefaction and changes of pore water pressure analysis as- pects, this paper analyses the generation and development of negative friction. It is valuable to the theoretical study and engineering application. |
| Keywords: | optical fiber measurement post-grouting negative friction of pile side |
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