| 水泥搅拌桩加固坝基动力响应分析 |
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| 引用本文： | 潘晓东,徐长节,蔡袁强.水泥搅拌桩加固坝基动力响应分析[J].振动工程学报,2001,14(3):359-363. |
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| 作者姓名： | 潘晓东 徐长节 蔡袁强 |
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| 作者单位： | 浙江大学建工学院 |
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| 基金项目： | 国家自然科学基金资助项目(编号:59908012) |
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| 摘 要： | 以Biot固结方程为基础，采用有效应力法对水泥搅拌桩复合地基及细砂土层进行动力响应及液化分析。该法考虑了阻尼等因素的影响，将应力、位移及孔压等量耦合于Biot固结方程之中，从而可以计算地震期间的孔隙水压力、速度、正应力及剪应力的发展全过程，并探讨了上覆荷载、水泥搅拌桩桩长、置换率等因素对场地动力响应及液化的影响，对地基抗震设计及研究具有一定的指导意义。
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| 关 键 词： | 坝基 抗震技术 动力响应 水泥搅拌桩 Biot固结方程 |
| 修稿时间： | 1999年9月10日 |
Dynamic Response Analysis of Foundation with Cement Mixing Piles of a Dam |
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| Pan Xiaodong,Xu Changjie,Cai Yuanqiang.Dynamic Response Analysis of Foundation with Cement Mixing Piles of a Dam[J].Journal of Vibration Engineering,2001,14(3):359-363. |
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| Authors: | Pan Xiaodong Xu Changjie Cai Yuanqiang |
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| Abstract: | Biot consolidation equation is applied to study the dynamic response and the liquefaction of composite foundation with cement mixing piles under dynamic loading by the effective stress method. The effect of damping is considered and stress, displacement and pore water pressure are coupled in the Biot consolidation equation. Therefore, it can be used to calculate the development of the pore water pressure, velocity, acceleration, normal stress and shear stress in soil during the earthquake. It also can be used to discuss the effects of static load, the length of cement mixing piles, the replacement rate on the dynamic response of foundation and liquefaction. So it is constructive to the aseismatic design and analysis of foundation. |
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| Keywords: | dam foundations earthquake resistance of dam dynamic response cement mixing piles Biot consolidation function |
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