| 沙漠地区砂层预处理对钢筋混凝土灌注桩承载力的影响 |
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| 引用本文： | 石怀清,高鹏,赵文博.沙漠地区砂层预处理对钢筋混凝土灌注桩承载力的影响[J].岩土工程技术,2012,26(3):155-158. |
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| 作者姓名： | 石怀清 高鹏 赵文博 |
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| 作者单位： | 机械工业勘察设计研究院,陕西西安,710043 |
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| 摘 要： | 通过现场在天然状态下和经过振冲密实砂桩处理后的两个区域进行的单桩竖向静载荷试验和桩身应力测试，确定了不同区域的单桩竖向抗压极限承载力，并对天然和经挤密砂桩处理两种不同状态下的桩身侧阻力及桩端阻力进行了对比分析，得出在沙漠地区，经过振冲密实砂桩处理后，钢筋混凝土灌注桩的桩身侧阻力及桩端阻力会有较大地提高，设计上可以通过减短桩长来大大节约此类项目在地基基础上的资金。
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| 关 键 词： | 砂层 灌注桩 承载力 挤密砂桩 桩身应力 |
Negative Skin Friction on Piles in Loess Collapsible Under Overburden Pressure |
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| Shi Huaiqing
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Gao Peng
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Zhao Wenbo.Negative Skin Friction on Piles in Loess Collapsible Under Overburden Pressure[J].Geotechnical Engineering Technique,2012,26(3):155-158. |
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| Authors: | Shi Huaiqing Gao Peng Zhao Wenbo |
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| Institution: | Shi Huaiqing Gao Peng Zhao Wenbo (China JK Institute of Engineering Investigation and Design, Xi＇an 71004a, Shaanxi, China) |
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| Abstract: | Through the field in the natural state and, after vibroflotation sand compaction pile treatments on two regions of the static load test of pile and pile stress tests. The Author Had determined the different regions of the vertical ultimate carrying capacity of single pile, and the natural compaction sand pile under two different conditions of pile body side friction are analyzed. After vibroflotation sand compaetion pile treatments, the reinforced concrete filling pile side resistance and end resistance of the pile will be greatly improved, designed by the length shortened to save such projects in foundation of funds. |
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| Keywords: | sand filling pile eapacity dense sand pile pile stress |
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