| 地面城轨交通近轨道区域自由地表振动实测研究 |
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| 引用本文： | 王福彤,陶夏新,崔高航,郑鑫,梁德勇.地面城轨交通近轨道区域自由地表振动实测研究[J].振动与冲击,2011,30(5):131-135. |
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| 作者姓名： | 王福彤 陶夏新 崔高航 郑鑫 梁德勇 |
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| 作者单位： | 1. 哈尔滨工业大学土木工程学院，黑龙江 哈尔滨 150090；2. 黑龙江大学建筑工程学院，黑龙江 哈尔滨 150001；3. 黑龙江八一农垦大学工程学院，黑龙江 大庆 163319；4. 东北林业大学土木工程学院，黑龙江 哈尔滨 150040；5. 黑龙江省工程咨询评审中心， 黑龙江 哈尔滨 150008 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 摘要：城市轨道交通诱发周边地表振动已成为突出的环境振动问题。为考查轨道周边自由地表垂向振动的特性及其传播规律，在北京城铁13号线回龙观至霍营区段进行了现场观测试验。从时域、功率谱和振动级三个方面对获得的数据进行了分析。结果显示：随着与轨道距离的增加，地表加速度峰值明显衰减，振动持时增加；振动优势频率为10-80Hz，近轨道处以高频为主，远离轨道处以低频为主；加权Z振级单调衰减，但分频段振级并非单调衰减，与场地卓越频率接近的频段存在较大的反弹现象；乘客满载和半载对Z振级的影响不大；相对于干线铁路而言，城轨交通地面振动水平较低。
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| 关 键 词： | 城市轨道 地表振动 现场测试 振动级 |
| 收稿时间： | 2010-5-31 |
| 修稿时间： | 2010-8-20 |
Test in situ for free ground vibration near urban railway line |
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| WANG Fu-tong,TAO Xia-xin,CUI Gao-hang,ZHENG Xin,LIANG De-yong.Test in situ for free ground vibration near urban railway line[J].Journal of Vibration and Shock,2011,30(5):131-135. |
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| Authors: | WANG Fu-tong TAO Xia-xin CUI Gao-hang ZHENG Xin LIANG De-yong |
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| Affiliation: | 1. School of Civil Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150090; 2. School of Civil Engineering and Architecture, Heilongjiang University, Harbin, Heilongjiang, 150001; 3. School of Engineering, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319; 4. School of Civil Engineering, Northeast Forestry University, Harbin, Heilongjiang, 150040; 5. Heilongjiang Engineering Project Evaluation and Consultation Centre, Harbin, Heilongjiang, 150008 |
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| Abstract: | Ground vibration induced by urban rail traffic becomes a major environmental vibration problem in urban areas.In order to study the vertical ground vibration characteristics and its propagation behavior,a test in situ was carried out near line 13 of Beijing urban railway between Huilongguan station and Huoying one.The responses of the free ground were analyzed in three aspects of acceleration time histories,power spectra and vibration levels.Results showed that the PGA of the ground surface displays a prono... |
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| Keywords: | urban railway ground vibration test in situ vibration level |
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