| 竖向受压螺旋桩荷载沉降函数解 |
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| 引用本文： | 董天文,梁力. 竖向受压螺旋桩荷载沉降函数解[J]. 岩土工程学报, 2007, 29(10): 1483-1487 |
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| 作者姓名： | 董天文 梁力 |
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| 作者单位： | 东北大学资源与土木工程学院；东北大学资源与土木工程学院 辽宁沈阳110004；辽宁沈阳110004； |
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| 基金项目： | 致谢：感谢参加螺旋桩静载试验的王炜、李明、赵军、王伟、王长剑. |
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| 摘 要： | 竖向受压螺旋桩基础的单桩荷载沉降函数的土材料采用双折线数学模型,从桩体、叶片的传力过程入手,建立螺旋桩荷载传递函数,导出其显式解。通过对6根连续叶片式、分层叶片式螺旋桩的静载试验P–s曲线的拟合,说明推导的荷载、位移解答适用于求解螺旋桩的P–s曲线,并可根据s-logP法判定螺旋桩的极限承载力,提供合理的单桩承载力设计值。
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| 关 键 词： | 螺旋桩基础 荷载沉降传递函数 静载荷试验 极限荷载 |
| 文章编号： | 1000-4548（2007）10-1483-05 |
| 修稿时间： | 2006-09-07 |
Solution of load-settlement function of single screw pile under axial pressure |
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| DONG Tian-wen,LIANG Li. Solution of load-settlement function of single screw pile under axial pressure[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(10): 1483-1487 |
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| Authors: | DONG Tian-wen LIANG Li |
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| Affiliation: | School of Resources and Civil Engineering Northeastern University Shenyang 110004 China |
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| Abstract: | The load-settlement function of a screw pile under axial load was built on the bilinear model of soils and the transferring process of force from the pile to ground,and some solutions to this transfer function were educed.Through the fitting of 6 curves of load-settlement(P-s curve) obtained by static load tests on the continuous kind and the bed kind of screw piles,the ultimate capacity of screw piles could be estimated by the method of s-logP,and the rational design value of capacity of a single pile was proposed. |
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| Keywords: | screw pile foundation transfer function of loading-settlement static load test ultimate load |
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