| 虚土桩扩散角对桩的纵向振动特性影响研究 |
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| 引用本文： | 王奎华,刘凯,吴文兵,王宁.虚土桩扩散角对桩的纵向振动特性影响研究[J].工程力学,2011(9):129-136,142. |
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| 作者姓名： | 王奎华 刘凯 吴文兵 王宁 |
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| 作者单位： | 浙江大学软弱土与环境土工教育部重点实验室; |
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| 基金项目： | 国家自然科学基金项目(50879077) |
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| 摘 要： | 在桩端土单层、桩侧土成层条件下，采用锥形虚土桩假设，研究虚土桩扩散角对桩纵向振动特性的影响。首先将桩体正下方到基岩的单层土体简化成锥形虚土桩，并划分为多个薄层，采用平面应变模型对桩侧士求解得到桩（和虚土桩）剪切复刚度，然后根据桩土耦合条件，求解桩（和虚土桩）纵向振动方程，利用复刚度传递法递推得到虚土桩桩顶的复刚度，并将...
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| 关 键 词： | 锥形虚土桩 扩散角 平面应变 复刚度传递 桩顶响应 |
EFFECT OF CONE ANGLE ON AXIAL DYNAMIC RESPONSE OF FICTITIOUS SOIL PILE |
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| WANG Kui-hua,LIU Kai,WU Wen-bing,WANG Ning.EFFECT OF CONE ANGLE ON AXIAL DYNAMIC RESPONSE OF FICTITIOUS SOIL PILE[J].Engineering Mechanics,2011(9):129-136,142. |
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| Authors: | WANG Kui-hua LIU Kai WU Wen-bing WANG Ning |
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| Affiliation: | WANG Kui-hua,LIU Kai,WU Wen-bing,WANG Ning(Ministry of Education Key Laboratory of Soft Soils and Geoenvironmental Engineering,Zhejiang University,Hangzhou 310058,China) |
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| Abstract: | Based on the hypothesis of fictitious soil pile,the influence of cone angle on dynamic response is presented.The soil around pile is assumed to be layered while the soil under pile is assumed to be single.The conical soil pile,a simlified model of soil layer under the pile,is divided into many thin slices.Then the complex circumferential shear stiffness of pile and fictitious pile is obtained by plane strain assumption.The vertical vibration equation can be solved with the boundary condition between soil an... |
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| Keywords: | conical fictitious soil pile cone angle plane strain aummption complex stiffness transfer dynamic response of pileblock |
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