| 富绥松花江大桥桩基静载对比试验研究 |
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| 引用本文： | 聂玉东,周儒夏.富绥松花江大桥桩基静载对比试验研究[J].岩土力学,2012,33(5):1327-1332. |
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| 作者姓名： | 聂玉东 周儒夏 |
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| 作者单位： | 1.哈尔滨工业大学 土木工程学院，哈尔滨 150080；2.黑龙江省公路勘察设计院，哈尔滨 150080； 3.东南大学 土木工程学院，南京 210096；4.南通市公路管理处，江苏 南通 226001 |
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| 基金项目： | 西部交通建设科技项目(No.2009318494041) |
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| 摘 要： | 富锦－绥滨松花江大桥基础采用直径2.0 m的钻孔灌注桩。通过数据采集，由锚桩法测得的45 m试桩和自平衡测得的70 m试桩上段桩的荷载-沉降关系、竖向承载特性、桩侧摩阻力等进行对比分析。分析结果表明：在极限状态下，两者位移相差14.97 mm，侧阻力相差7.30%；长、短试桩各土层桩侧阻力的实测值都满足要求。在桩-土体系破坏之前、相同荷载条件下，两者位移的差值有变大的趋势，相同土层的桩侧摩阻力相吻合
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| 关 键 词： | 承载力 位移 摩阻力 |
| 收稿时间： | 2010-11-04 |
Static loading comparative test for pile foundation of Fujin-Suibin Songhua River Bridge |
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| NIE Yu-dong
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ZHOU Ru-xia.Static loading comparative test for pile foundation of Fujin-Suibin Songhua River Bridge[J].Rock and Soil Mechanics,2012,33(5):1327-1332. |
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| Authors: | NIE Yu-dong ZHOU Ru-xia |
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| Institution: | 1. School of Civil Engineering, Harbin Institute of Technology, Harbin 150080, China; 2. Highway Survey and Design Institute of Heilongjiang Province, Harbin 150080, China; 3. School of Civil Engineering, Southeast University, Nanjing 210096, China; 4. Nantong Highway Administration, Nantong, Jiangsu 226001, China |
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| Abstract: | The bored piles 2.0 m in diameter is adopted in the foundation under Fujin-Suibin Songhua River Bridge.The in-situ static loading tests using conventional testing method and self-balanced method have been carried out on the test piles which are 45 m long and 70 m long for the latter one with upper shaft upon the load cell.By comparing the data of the testing piles from such two methods,the load-pile head settlement relationship and the vertical load-transfer behavior have been studied as well as the shaft friction resistance.It is indicated that,in the limit state,the displacement difference between the two is 14.97 mm;the side resistances difference is 7.30%;the side frictions of the two test pile meet the requirements.In the pile-soil system before destruction,under the same load conditions,the difference between the displacements gradually becomes larger.The pile skin friction in the same soil layer is consistent each other. |
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| Keywords: | bearing capacity displacement frictional resistance |
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