| 430 | 8 | 33 |
| 下载次数 | 被引频次 | 阅读次数 |
为研究不同地铁运营条件下列车对周围环境及盾构隧道引起的振动问题,以天津地铁5号线某建成营运区段为工程背景,通过现场试验,取得列车在经过不同测试断面时的载客情况、瞬时速度等运行工况,实测了盾构区间内列车经过时轨枕、轨道板及隧道壁的振动加速度。通过对实测信号进行时频分析,探究了列车作用下,引起轨道及隧道结构的振动响应规律,验证了减震道床结构的有效性,结果表明:盾构区间垂向加速度响应主要分布在40～70 Hz和200～450 Hz这2个频率范围;盾构区间轨道结构及隧道衬砌振动响应幅值与列车载客量正相关,此为后续开展关于列车荷载对隧道结构动力响应影响规律的进一步研究奠定了基础。
Abstract：Subway trains under different operating conditions and study of the environment caused by the vibration of shield tunnel, Tianjin Metro Line 5 a completed operating segment for the engineering background, field test, the case made passenger trains when passing through the different sections of the test instantaneous speed operating conditions, the measured vibration acceleration sleeper, the rail plate and the wall of the tunnel section within the shield after the train. Through the frequency analysis of the measured signal, explores the effect of the train, track and vibration caused by the response of tunnel structure, the validity of the damping track bed structure results show that: the shield section vertical acceleration response mainly in 40～70 Hz and 200～450 Hz two frequency ranges; shield zone track structure and tunnel lining vibration amplitude response and positive correlation passenger train, train loads for the subsequent conduct on the influence of further research laid the foundation for structural dynamic response of the tunnel.
[1] VERHAS H P.Prediction of the propagation of train-induced ground vibration[J].Journal of Sound and Vibration,1979,66(3):371-376.
[2] KURZWEIL L G.Ground-borne noise and vibration from underground rail systems[J].Journal of Sound and Vibration,1979,66(3):363-370.
[3] London transportation office of the scientific advisor:Vibration measurement at bake street[R].Jubilee Line,London,England,1982.
[4] DEGRANDE G ,SCHEVENELS M,CHATTERJEE P ,et al.Vibrations due to a test train at variable speeds in a deep bored tunnel embedded in London clay[J].Journal of Sound and Vibration,2006,293(3-5):626-644.
[5] YANG W ,HUSSEIN M F M,MARSHALL A M.Centrifuge and numerical modelling of ground-borne vibration from an underground tunnel[J].Soil Dynamics & Earthquake Engineering,2013,51(Complete):23-34.
[6] 潘昌实，谢正光.地铁区间隧道列车振动测试与分析[J].土木工程学报，1990,23(2):21-28.
[7] 张玉娥，白宝鸿.地铁列车振动对隧道结构振动荷载的模拟[J].振动与冲击，2000,19(3):68-70.
[8] 凌昊，郑余朝，仇文革，等.深圳地铁重叠隧道列车振动响应测试与数值分析[J].城市轨道交通研究，2010,13(8):49-53,58.
[9] 韦凯，翟婉明，肖军华.软土地铁盾构隧道垂向随机振动分析模型[J].工程力学，2014,31(6):117-123.
[10] WEI K,WANG P,YANG F,et al.The effect of the frequency-dependent stiffness of rail pad on the environment vibrations induced by subway train running in tunnel[J].Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail & Rapid Transit,2016,230(3):171-178.
[11] THUSYANTHAN N I,MADABHUSHI S P G,et al.Experimental study of vibrations in underground structures[J].Geotechnical Engineering,2003.156(2):75-81.
[12] 王祥秋，杨林德，周治国.列车振动荷载作用下隧道衬砌结构动力响应特性分析[J].岩石力学与工程学报，2006,25(7):1337-1342.
[13] 王祥秋，杨林德，高文华.铁路隧道提速列车振动测试与荷载模拟[J].振动与冲击，2005,24(3):99-102,107-138.
[14] 莫海鸿，邓飞皇，王军辉.运营期地铁盾构隧道动力响应分析[J].岩石力学与工程学报，2006,25(2):3508-3512.
[15] 田甜，雷洋，齐法琳，等.不同时速列车振动荷载下衬砌拱圈振动响应传递规律[J].工程力学，2018,35(5):143-151.
[16] 曹志亮，郭彤，缪志伟，等.列车荷载作用下隧道振动数值模拟研究[J].江苏建筑，2016,23(3):22-25.
[17] NIELSEN J C O.High-frequency vertical wheel-rail contact forces—Validation of a prediction model by field testing[J].Wear,2008,265(9-10):1465-1471.
基本信息:
DOI：10.19782/j.cnki.1674-0610.2021.06.002
中图分类号:U231;U455.43
引用信息:
[1]秦银刚,黄海峰.地铁列车振动对盾构隧道结构影响试验研究[J].公路工程,2021,46(06):8-14+22.DOI:10.19782/j.cnki.1674-0610.2021.06.002.
基金信息:
国家自然科学基金项目(51778540,51678501); 天津市建委科技项目(2017-19)
2020-09-11
2020
2020-09-24
2020-11-16
2020
1
2021-07-21
2021-07-21
2021-07-21