| 粉土p-y曲线的试验研究 |
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| 引用本文： | 王腾,王天霖.粉土p-y曲线的试验研究[J].岩土力学,2009,30(5):1343-1346. |
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| 作者姓名： | 王腾 王天霖 |
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| 作者单位： | 1. 中国石油大学,华东,石油工程学院,青岛,255666
2. 大连海事大学,机电与材料工程学院,大连,116026 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)重大项目 |
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| 摘 要： | 进行了浸水黄河粉土中模型钢管桩的水平静力荷载试验，对试验弯矩用6阶多项式进行拟合，推得了黄河粉土的p-y曲线，并与API建议砂土和软黏土p-y曲线进行了比较。根据粉土试验p-y曲线，提出了黄河粉土p-y曲线的理论表达式，用此理论p-y曲线进行了水平荷载下模型桩的数值分析，并与试验测试弯矩进行了比较。研究结果表明：粉土的黏聚力对p-y曲线有很大的影响，忽略粉土黏聚力的抗力作用将导致桩基水平承载力的设计偏于保守；基于理论粉土p-y的模型桩的数值结果与试验弯矩值吻合得较好。
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| 关 键 词： | p-y曲线 黄河粉土 模型桩 试验研究 |
| 收稿时间： | 2007-12-03 |
Experimental research on silt p-y curves |
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| WANG Teng,WANG Tian-lin.Experimental research on silt p-y curves[J].Rock and Soil Mechanics,2009,30(5):1343-1346. |
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| Authors: | WANG Teng WANG Tian-lin |
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| Institution: | 1. School of Petroleum Engineering, China University of Petroleum, Dongying 257061, China; 2. Electromechanical and Materials Engineering College, Dalian Maritime University, Dalian 116026, China |
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| Abstract: | An experimental research on a model pile embedded in a deposit of submerged silt has been carried out under lateral static loadings. The 6th order polynomial function was selected to fit the tested results and back-calculate the lateral soil reaction p and lateral deflection y. Thus, the silt p-y curves and theoretical p-y curves formulation accounted for both angle of friction and cohesion component were proposed and compared with the API recommended ones for sand and soft clay, respectively. The results indicate that the cohesion component has great effect on the p-y curves, neglecting the soil resistance from the cohesion component, sometimes will lead to a significant conservation pile foundation design in the case of silt. And the predicted bending moment responses of the model pile using these silt p-y curves are in good agreement with the experiment results. |
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| Keywords: | p-y curves Yellow River silt model pile experimental research |
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