| 单桩极限承载力的静力触探估算法研究 |
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| 引用本文： | 赵春风,蒋东海,崔海勇.单桩极限承载力的静力触探估算法研究[J].岩土力学,2003(Z2). |
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| 作者姓名： | 赵春风 蒋东海 崔海勇 |
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| 作者单位： | 同济大学地下建筑与工程系 上海200092
(赵春风，蒋东海)，上海虹桥东苑置业有限公司 上海201103(崔海勇) |
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| 基金项目： | 上海市建委科技委建设基金(批准号A9702154)，上海市重点学科基金资助项目(沪教委科[2001]44号)。 |
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| 摘 要： | 结合上海现行规范,在利用高应变动力测试获得单桩极限侧摩阻力和极限端阻力的基础上,提出静力触探估算单桩极限承载力的修正公式,并对其中的修正系数进行分析,从而获得了修正系数的统计结果。为减少高应变动力测试可能带来的误差,利用静载荷结果对所得的修正公式进行再次修正,并最终获得由静力触探估算单桩极限承载力的公式。工程实例验证表明,用所得公式计算单桩极限承载力的结果精度更高,从而为研究静力触探确定单桩极限承载力提供了一种新的途径。
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| 关 键 词： | 岩土工程 承载力 静力触探法 高应变动力测试 静载荷试验 |
Research on pile ultimate capactty calculition based on static one penetration test |
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| ZHAO Chun-feng ,JIANG Dong-hai ,CUI Hai-yong.Research on pile ultimate capactty calculition based on static one penetration test[J].Rock and Soil Mechanics,2003(Z2). |
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| Authors: | ZHAO Chun-feng JIANG Dong-hai CUI Hai-yong |
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| Institution: | ZHAO Chun-feng 1,JIANG Dong-hai 1,CUI Hai-yong 2 |
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| Abstract: | Based on the results of limit shaft resistance and limit tip resistance obtained from high strain dynamic testing, and combining Shanghai technical standard, the revised formula to estimate the pile ultimate bearing capacity by static cone penetration test, and the correlation coefficients were derived, accordingly. In order to reduce errors from high strain dynamic testing results, the revised formula were corrected with the outcome of plate loading tests. The engineering practice indicates that the suggested method can provide more precise estimation of pile bearing capacity. This study and relevant formula provide an alternative for estimating pile ultimate capacity by static cone penetration test. |
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| Keywords: | geotechnical engineering capacity static cone penetration test high strain dynamic test plate load |
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