| 超大直径空心独立复合桩基与群桩承载力对比 |
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| 引用本文： | 冯忠居,戴良军,董芸秀,盛明宏,崔林钊,冯凯,文军强.超大直径空心独立复合桩基与群桩承载力对比[J].筑路机械与施工机械化,2019(5):72-79. |
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| 作者姓名： | 冯忠居 戴良军 董芸秀 盛明宏 崔林钊 冯凯 文军强 |
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| 作者单位： | 长安大学公路学院;安徽建工集团有限公司;安徽省路桥工程集团有限责任公司 |
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| 摘 要： | 为研究超大直径空心独立复合桩基的承载特性,确定其合理的结构形式和尺寸参数,采用数值模拟的方法,对比分析了超大直径空心独立复合桩基与传统群桩基础在竖轴向荷载、横轴向荷载下承载特性的异同。结果表明:超大直径空心独立复合桩竖轴向承载力与对应群桩基本一致,但在横轴向承载具有更优异的能力;复合桩的竖向极限承载力中端阻力占比明显大于群桩,应注意桩端承载力的验算;为合理提高复合桩的承载力,应控制桩径D<10m并保持L/D≥6,尽可能通过桩侧阻力的增长提高承载力。
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| 关 键 词： | 岩土工程 桥梁桩基 超大直径 复合桩 |
Comparison of Bearing Capacity Between Super Large Diameter Hollow Independent Composite Pile Foundation and Pile Group |
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| FENG Zhong-ju,DAI Liang-jun,DONG Yun-xiu,SHENG Ming-hong,CUI Lin-zhao,FENG Kai,WEN Jun-qiang.Comparison of Bearing Capacity Between Super Large Diameter Hollow Independent Composite Pile Foundation and Pile Group[J].Road Machinery & Construction Mechanization,2019(5):72-79. |
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| Authors: | FENG Zhong-ju DAI Liang-jun DONG Yun-xiu SHENG Ming-hong CUI Lin-zhao FENG Kai WEN Jun-qiang |
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| Institution: | (School of Highway, Chang an University, Xi an 710064, Shaanxi,China;Anhui Construction Engineering Group,Hefei 230031, Anhui, China;Anhui Road and Bridge Engineering GroupCo., Ltd., Hefei 230031, Anhui, China) |
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| Abstract: | FENG Zhong-ju;DAI Liang-jun;DONG Yun-xiu;SHENG Ming-hong;CUI Lin-zhao;FENG Kai;WEN Jun-qiang(School of Highway, Chang an University, Xi an 710064, Shaanxi,China;Anhui Construction Engineering Group,Hefei 230031, Anhui, China;Anhui Road and Bridge Engineering GroupCo., Ltd., Hefei 230031, Anhui, China) |
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| Keywords: | geotechnical engineering bridge pile foundation superlarge diameter composite pile |
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