| 高速列车运行引起路基-场地体系振动特性研究 |
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| 引用本文： | 刘雪珠,陈国兴,陈 斌.高速列车运行引起路基-场地体系振动特性研究[J].岩土力学,2007,28(Z1):773-777. |
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| 作者姓名： | 刘雪珠 陈国兴 陈 斌 |
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| 作者单位： | 南京工业大学 岩土工程研究所，南京 210009 |
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| 基金项目： | 江苏省六大人才高峰目(No. 06-F-008)。 |
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| 摘 要： | 基于子结构法思想，把轨枕-路基-场地体系从列车-轨道-路基-场地这一耦联的大系统中分离出来。以荷载输入等同于一种边界条件，采用高速列车以265 km/h和300 km/h的速度运行时现场实测竖向速度时程作为荷载输入尝试，以ABAQUS软件为计算平台，考虑土的动力非线性特性，研究了以这两种速度不同组合的双线和单线高速列车运行引起路基-场地体系动力反应，初步探讨了其规律。
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| 关 键 词： | 高速列车 场地振动 动力反应 ABAQUS软件 |
| 收稿时间： | 2007-06-15 |
Analysis of vibration characteristics on subgrade-site under vibrating load induced by high-speed train |
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| LIU Xue-zhu,CHEN Guo-xing,CHEN Bin.Analysis of vibration characteristics on subgrade-site under vibrating load induced by high-speed train[J].Rock and Soil Mechanics,2007,28(Z1):773-777. |
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| Authors: | LIU Xue-zhu CHEN Guo-xing CHEN Bin |
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| Institution: | Institute of Geotechnical Engineering, Nanjing University of Technology, Nanjing 210009, China |
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| Abstract: | Based on the substructural analysis of soil-structural interaction, sleeper-subgrade-site is treated as a subsystem and separated from the coupled system of train-rail-subgrade-site, and the input of dynamic load is considered as a boundary condition. As a trial, the measured time history of the vertical velocity of the sleeper induced by high-speed train in-situ experiments is used as an input of dynamic load. By means of this method and ABAQUS software, the parametric studies of dynamic response of subgrade-site system induced by high-speed train are completed by making non-linear numerical analyses and considering train running condition on up-link and down-link under the different combination with train speed 265 km/h and 300 km/h. Some preliminary regularity is presented. |
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| Keywords: | high-speed train site vibration dynamic response ABAQUS software |
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