| 高速铁路近距离下穿机场跑道及导航结构振动影响 |
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| 引用本文： | 王锦华.高速铁路近距离下穿机场跑道及导航结构振动影响[J].路基工程,2022,0(5):139-143. |
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| 作者姓名： | 王锦华 |
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| 作者单位： | 1.民航规划设计研究总院有限公司，北京 100029 |
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| 摘 要： | 为评估高速铁路运行产生的振动对机场跑道和导航设备的影响，依托长赣高速铁路近距离下穿长沙黄花机场工程，运用midas GTS软件进行动力时程分析，分析高速铁路对下穿机场跑道地表及仪表结构的力学响应规律。结果表明:高速铁路隧道结构与机场地表净距不小于一倍洞直径时，高速铁路列车荷载振动对跑道地表影响较小，对仪表导航系统产生的力学响应更小。
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| 关 键 词： | 高速铁路 穿越工程 机场跑道 导航设备 力学响应 |
| 收稿时间： | 2022-09-09 |
Vibration Effects of Near Field Undercrossing High-speed Railway on Airfield Runway and Navigation Structures |
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| Abstract: | In order to evaluate the vibration effects resulted from operation of high-speed railway on the airfield runway and navigation devices, here based on the engineering of Changsha—Ganzhou High-speed Railway closely undercrossing Huang-hua Airport, Changsha, dynamic time history analysis was carried out by midas GTS software to study the mechanical response laws of the runway surface and instrument structures against undercrossing high-speed railway. The result shows that, when the clear distance from high-speed railway tunnel structure to airport surface is not less than one time of the tunnel diameter, the vibration of train load has little influence on the runway surface and brings about less mechanical response of the instrument navigation system. |
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