用户名: 密码: 验证码:
斜拉索风雨激振试验与数值模拟研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
作为斜拉桥主要承重部分的斜拉索,具有自重轻、刚度低、阻尼小等特点,在外界激励作用下极易发生大幅振动。拉索振动会对桥梁的安全运营和使用寿命造成不可忽视的影响,而在各种振动现象中,尤以风雨激振的起振条件最容易满足,危害也最为严重。因而对斜拉索风雨激振的产生机理及控制措施研究已成为桥梁工程界和结构风工程领域研究人员关注的热点问题之一。
     本文利用风洞试验、数值模拟和理论研究相结合的方法,对斜拉索的风雨激振问题进行了详细深入的研究。主要研究内容如下:
     1.设计实现了一套带人工水线倾斜拉索模型的同步测力、测压装置。将人工制作的固体条状物固定在拉索上表面,以代替实桥出现风雨激振时附着在拉索表面的液态条状水线,通过天平测力和电子扫描阀测压等手段得到斜拉索的风压系数、气动力系数,以及带人工水线拉索的气动力与水线位置的相互关系,并将3种表面形态下的拉索在不同雷诺数、不同风向角的气动力系数作对比,为揭示斜拉索风雨激振的微观机理、风雨激振减振措施有效性研究等提供必要的数值参考和试验依据。
     2.采用FLUENT软件平台对直立拉索模型和带固定人工水线的倾斜拉索模型静态绕流进行数值模拟计算,根据研究需要改变流场形态和拉索的相关设计参数,形象的再现空气流动的情形。得到了模型绕流的流线图、表面压力系数和水线上的平均气动升力系数、平均气动阻力系数,为拉索风雨激振的机理分析提供物理风洞试验未能实现的重要参数。
     3.推导出风雨激振中斜拉索和水线的非线性运动微分方程,建立更符合实际拉索在自然风场中带运动水线的倾斜刚性节段理论模型。讨论了斜拉索风雨激振运动微分方程中各种参数的取值情况,并计算拉索的风雨激振响应,探讨其产生机理,最后研究了拉索质量、拉索的结构阻尼以及拉索的空间姿态等重要参数,分析它们对风雨激振的影响。
     4.进行了缠绕螺旋线的气动措施拉索的测压试验。详尽细致的分析了螺旋线高度、缠绕间距等因素对斜拉索气动特性的影响,测量了带不同参数气动措施的倾斜拉索表面风压系数分布以及不同表面状态的拉索气动力系数的变化规律。为进一步精细化研究气动措施对于斜拉索风雨激振的控制提供了科学的依据和参考。
The strayed cable is a main bearing part of cable strayed bridge, which being lightweight, low stiffness and little damping, can be easily inspired great vibration under outsideincentive effect. The vibrations of strayed cable could creat great influence on safetyoperation and service life of the bridge.In all kinds of vibration phenomenons, the excitationconditions of wind-rain-induced vibration is the most easily to meet, and the harm is the mostserious. So the production mechanism and control measurements of wind-rain-inducedvibration of cable has be recognized as one of the most hot study issues in bridge engineeringand structural wind engineering field by researchers.
     This paper has been studied on wind-rain-induced vibration of cable from thecombination method of wind tunnel test, numerical simulation and theory analysis. The mainresearch contents are as follows:
     1. A set of3-d cable model with fixed artificial rivulet has been designed andmanufactured to measure force and pressure. An artificial solid strip lane was fixed on thesurface of strayed cable model, instead of the liquid rivulet lane attaching to strayed cablewhen wind-rain-induced vibration occurred on a real bridge. The wind pressure coefficients,aoredynamic coefficients and the relationship between the position of rivulet withaoredynamic force of strayed cable being attached by artificial rivulet have been measured byforce balance and pressure scanning valve. Compared the aoredynamic coefficients of strayedcable with3surface morphologies under differentR eand wind-angle,then providenecessary numerical reference、test basis to reveal the micro production mechanism andeffective control measurements of wind-rain-induced vibration.
     2. The static flow of2-d cable model and3-d cable model with fixed artificial rivulethave been taken into numerical stimulation calculation by using FLUENT software platform.Changed the flow field forms and related design parameters under study needs,the situationof air-flow was reproduced imaginally. The stream line pattern、pressure coefficients onsurface、average draft and lift coefficients on rivulet have been got to provide importantparameters for analysis of production mechanism of wind-rain-induced vibration instead of wind tunnel text.
     3. Differential equation of motion of strayed cabel and rivulet in the wind-rain-inducedvibration have been derived to establish the3-d still section theoretical model which beingmore tally with the actual in natural wind field. Every parameter value in the differentialequation of motion, production mechanism and the response of wind-rain-induced vibrationhas been studied. At last, such important parameters as quality,structural damping and spatialattitude of the strayed cable have be selected to analysis the influences on wind-rain-inducedvibration.
     4. A pressure experiment on strayed cable with the aerodynamic measurement windinghelix has been made to analyze the influence of the height and spacing of helix onaerodynamic characteristics of the strayed cable, then the distribution of wind pressurecoefficients of3-d cable model under aoredynamic messurement with different parametersand the change law of aoredynamic coefficients under different cable surface state have beenmeasured.Which provide scientific basis and reference in refinement study on aoredynamicmeasurement to control wind-rain-induced vibration.
引文
[1] Okauchi T, Miyota M, Tatsumi M, et al. Field Vibration Test of a Long-span Cable-stayedBridge by Large Exciters[J]. J of JSCE,1992, V455(11):75-84
    [2] H. Yamaguchi, Y. Fujino. Stayed Cable Dynamics and Its Vibration Control[J]. BridgeAerodynamic,1998, V26(8):235-253
    [3] M. Matsumoto. Response Characteristics of Rain-wind Induced Vibration of Stay-cable ofCable-stayed Bridges[J]. Journal of Wind Engineering and Industrial Aerodynamics,1995, V57(7):323-333
    [4] M. Matsumoto. Vortex-induced Cable Vibration of Cable-stayed[J]. Journal of WindEngineering and Industrial Aerodynamics,2001, V89(3):633–647
    [5] A. H. Nayfeh. Method of Normal Vibration Forms[M]. New York: John Wileyand Sons,1993:175-189
    [6] J Guckenheimer, P. Holmes, Nonlinear Oscillations, Dynamical Systems and Bifurcationsof Vector Fields[M]. Berlin: Springer-Verlag,1983:26-30
    [7]埃米尔.风对结构的作用—风工程导论[M].刘尚培,项海帆.上海:同济大学出版社,1992:15-95
    [8] Yamaguchi H., FUJINO Y.. Stayed Cable Dynamics and Its Vibration Control[J]. BridgeAerodynamic,1998, V11(3):235-253
    [9]王文涛.斜拉桥换索工程[M].北京:人民交通出版社,2006:75-88
    [10]苏达根,韩大建.斜拉桥拉索钢丝腐蚀失效研究[J].华南理工大学学报,1996,24(8):108-112
    [11]李利军,王卫峰,王卫山.斜拉索风雨振问题探讨[J].山西建筑,2005,31(1):172-173
    [12]苏达根,张君.斜拉桥拉索失效的两个问题[J].中南公路工程,1996,12(1):37-39
    [13]高德虎,刘桂风.斜拉桥拉索失效分析探讨[J].广东公路交通,2002,4(6):14-16
    [14]代璞,唐继舜.犍为岷江大桥换索工程[J].四川建筑,2005,5(9):121-122
    [15]薛晓锋.斜拉索风振控制阻尼器的评价研究[D].西安:长安大学,2009
    [16]李薇,张永胜.磁流变智能型阻尼器(MR)的研究[J].科技信息,2008,34(11):34-36.
    [17]程华才,朱雨林,孙汉超.斜拉桥拉索减振阻尼器工作性能试验研究[J].工程与建设,2006,20(1):4-7
    [18]杨高中.粘性剪切阻尼器(VSD)在铜陵长江大桥上的应用[J].公路,2000,11(3):66-67
    [19]王修勇,陈政清,倪一清.斜拉桥拉索风雨振观测及其控制[J].土木工程学报,2003,26(3):53-59
    [20]王修勇,陈政清.斜拉桥拉索磁流变阻尼器减振技术研究[J].中国公路学报,2003,16(2):11-17
    [21]孙利民,周海俊,陈艾荣.索承重大跨桥梁拉索的振动控制装置种类和性能[J].国外桥梁,2004,4(1):36-40.
    [22]李龙安.钢桁拱桥吊杆风致振动影响因素分析[J].桥梁建设,2008,2(3):19-22
    [23]高宗余,李龙安,方秦汉等.钢桁架拱吊杆风致振动研究[J].武汉理工大学学报(交通科学与工程版),2007,31(1):281-284
    [24]李文勃,林志兴.抑制斜拉桥拉索风雨激振的气动措施研究[J].土木工程学报,2005,38(5):48-53
    [25] Frandsen, J. B.. Simultaneous Pressures and Accelerations Measured Full-scale on theGreat Belt East Suspension Bridge[J]. Journal of Wind Engineering and IndustrialAerodynamics,2001, V89(1):95-129
    [26] B. A. Fleck. Strouhal Numbers for Flow past a Combined Circular-rectangular Prism[J].Journal of Wind Engineering and Industrial Aerodynamics,2001, V89(1):751-755
    [27]杜晓庆.斜拉桥拉索风雨激振研究[D].上海:同济大学,2003
    [28]杜晓庆,顾明.斜拉索上雨线的气动力特性的试验研究[J].同济大学学报(自然科学版),2005,33(5):585-589
    [29] M. Matsumoto, N. shiraishi M, H. Shirato. Rain-wind induced vibration of cables incable stayed bridges[J]. Journal of of Wind Engineering and Industrial Aerodynamics,1992, V44(7):2011-2022
    [30]顾明,刘慈军,徐幼麟等.带人工雨线的拉索在风雨激励下的响应[J].应用数学和力学,2002,23(10):1047-1054
    [31]李文勃.斜拉桥拉索三维风雨激振及静风荷载研究[D].上海:同济大学,2007
    [32]吕强,顾明.斜拉桥拉索风雨激振的分析模型[J].结构工程师,2001,12(1):12-15
    [33]杜晓庆,顾明,全涌.斜拉桥拉索风雨激振控制的试验研究[J].同济大学程学报,2003,31(11):1266-1269,1279
    [34]何向东,廖海黎,李明水等.斜拉索风雨激振动试验研究[A].第十一届全国结构风工程会议论文集[C].三亚,2003:210-214
    [35] H. Yamaguchi. Analytical study on growth mechanism of rain vibration of cables[J].Journal of Wind Engineering and Industrial Aerodynamics,1990, V33(8):73-80
    [36]顾明,杜晓庆.不同风向角下斜拉桥拉索模型测压试验研究[J].振动与冲击,2005,24(6):5-20
    [37] M. Matsumoto, Tomomi, Yagi, et al. Vortex-inclined cable vibration of cable-stayedbridges at high wind velocity[J]. Journal of Wind Engineering and IndustrialAerodynamics,2001, V89(11):633-647
    [38] M. Matsumoto. Cable aerodynamics of cable-stayed bridges[A]. The SecondInternational Symposium on Wind and Structures[C]. Korea,2002:21-42
    [39] M. Matsumoto. Field observation of the full-scale Wind-induced cable vibration[J].Journal of Wind Engineering and Industrial Aerodynamics,2003, V91(4):13-26
    [40]刘庆宽.斜拉桥斜拉索风雨激振时索表面水线摆动作用及规律的试验研究[J].土木工程学报,2007,40(7):63-67
    [41]刘庆宽,张峰,乔富贵.轴向流对斜拉索气动稳定性影响的试验研究[J].石家庄铁道学院学报(自然科学版),2008,21(4):16-19
    [42]李薇,胡兆同,薛晓锋等.斜拉索风雨激振三维模型试验研究[J].中国安全科学学报,2011,21(12):1-7.
    [43]顾明,杜晓庆.模拟降雨条件下斜拉索风雨激振及控制的试验研究[J].土木工程学报,2004,37(7):101-104
    [44]陈文礼,李惠,李凤臣.斜拉索风雨激振水线的超声波测试研究[J].地震工程与工程振动,2009,29(1):139-145
    [45]顾明,杜晓庆.带人工雨线的斜拉桥拉索模型测压试验研究[J].空气动力学学报,2005,23(4):419-424
    [46]王德山,刘峰,汪志刚.斜拉桥拉索风雨振动二次轴向流影响分析[J].华东交通大学学报,2005,22(2): p36-39
    [47]杜晓庆,顾明,全涌.斜拉桥拉索风雨激振控制的试验研究[J].同济大学程学报,2003,31(11):1266-1269,1279
    [48] Ming Gu, Xiaoqin Du. Experimental Investigation of Rain-wind Induced Vibration ofCables in Cable-stayed Bridges and Its Mitigation[J]. Journal of Wind Engineering andIndustrial Aerodynamics,2005, V93(7):79-95
    [49]顾明,杜晓庆.不同风向角下斜拉桥拉索模型测压试验研究[J].振动与冲击,2005,24(6):5-20
    [50]杜晓庆,顾明.斜拉索上雨线的气动力特性的试验研究[J].同济大学学报(自然科学版),2005,33(5):585-589
    [51]李文勃,林志兴,杨立波.超长斜拉索风阻系数及风雨激振的试验研究[J].振动、测试与诊断,2005,25(2):85-90
    [52]李寿英.斜拉桥拉索风雨激振机理及其控制理论研究[D].上海:同济大学,2005
    [53] T. Yoshimura. Aerodynamic stability of four medium span bridges in Kyushu district[J].Journal of Wind Engineering and Industrial Aerodynamics,1992, V22(11):1203-1214
    [54]张师帅.计算流体动力学及其应用[M].武汉:华中科技大学出版社,2011:15-26
    [55] Yuji Ohya, Kimihiko,Watanabe. Field Experiment on the Drag of Circular Cylinders[J].Journal of Wind Engineering,2001, V89(3):717-720
    [56] Li Q.S., Melbourne W.H. Turbulence Effects on Surface Pressures of RectangularCylinders[J]. Wind and Structures,1999, V2(5):253-266
    [57] Tamai H., Okuda Y., Katsura J. On Relation Between Reynolds Number and KarmanVortex Formation on a Bluff Body in Natural Wind[J]. Journal of Wind Engineering andIndustrial Aerodynamic,2001, V89(1):1619-1633
    [58]王福军.计算流体动力学分析CFD软件原理与应用[M].北京:清华大学出版社,2004:64-98
    [59]韩占忠. FLUENT流体工程仿真计算实例与应用[M].北京:北京理工大学出版社,1994:11-51
    [60]张凯. Fluent技术基础与应用实例[M].北京:清华大学出版社,2010:66-96
    [61]王金峰,刘斌.斜拉索的振动与抑振措施探讨[J].交通工程建设,2005,3(7):47-52
    [62] Hiroshi Maeda, Yoshinobv Kubo. Aerodynamics of closely and rigidly connected cablesfor cable-stayed bridges[J]. Journal of Wind Engineering and Industrial Aerodynamics,1997, V6(9):263-278
    [63]项海帆.现代桥梁抗风理论与实践[M].北京:人民交通出版社,2005:55-87
    [64]陈政清.桥梁风工程[M].北京:人民交通出版社,2005:101-115
    [65]陆夕云,童秉纲,庄礼贤.均匀来流中横向振动圆柱近迹涡结构的数值模拟[J].力学学报,2003,25(5):537-546
    [66]方媛媛.三维圆柱体旋涡发放特性的数值实验研究[D].哈尔滨:哈尔滨工程大学,2006
    [67]曹丰产,项海帆.圆柱非定常绕流及涡激振动的数值计算[J].水动力学研究与进展,2001,16(1):11-118
    [68]曹丰产.桥梁断面的气动导数和颤振临界风速的数值计算[J].空气动力学学报,2000,18(1):26-33
    [69]李薇. CFD方法研究桥梁断面三分力系数的雷诺数效应[D].西安:长安大学,2007
    [70]刘松,符松.纵向受迫振荡圆柱绕流问题的数值模拟[J].计算物理,2001,18(20):157-162
    [71]杨忠国,郑鑫,解恒燕.计算流体力学湍流模型在喷管流场数值模拟中的比较[J].黑龙江八一农垦大学学报,2010,22(5):36-38
    [72]周宇,钱炜祺,邓有奇等. k ωSST两方程湍流模型中参数影响的初步分析[J].空气动力学学报,2010,28(2):213-317
    [73]李广望,任安禄,陈文曲. ALE方法求解圆柱的涡激振动[J].空气动力学报,2004,22(3):283-288
    [74]李薇,胡兆同,李加武等.桥梁断面三分力系数数值模拟[J].公路交通科技,2012,29(5):37-40
    [75]郭春平.近流线型断面涡激振动数值模拟[D].西安:长安大学,2012
    [76]李薇,胡兆同,李加武. CFD方法研究桥梁断面三分力系数的雷诺数效应[J].长安大学学报:自然科学版,2010,30(60):44-49.
    [77]邓见.方柱绕流横向驰振及涡致振动数值模拟[J].浙江大学学报(工学版),2005,39(4):595-599
    [78]陈文礼,李惠.基于RANS的圆柱风致涡激振动的CFD数值模拟[J].西安建筑科技大学学报(自然科学版),2006,38(4):509-513
    [79]李加武.桥梁断面雷诺数效应及其控制研究[D].上海:同济大学,2003
    [80]顾明,杜晓庆.斜拉桥三维索风雨激振准两自由度模型[J].力学季刊,2004,25(4):496-501
    [81]梁春艳.定常风和非定常风对二维方柱作用的数值模拟[D]哈尔滨:哈尔滨工业大学,2007
    [82]李寿英,顾明.带固定人工水线拉索绕流的数值模拟[J].同济大学学报,2004,32(10):1334-1338
    [83] Schulz K. W., KallinderisY. Unsteady Flow Structure Interaction for IncompressibleFlows Using Deformable Hybrid Grids[J]. Journal of Computational Physics,1998, V143(8):569-597
    [84] Tamura T. Reliability on CFD Estimation for Wind-structure Interaction Problems[J].Journal of Wind Engineering and Industrial Aerodynamics,1999, V81(7):117-143
    [85] Braza M., PerrinR., Hoarau Y.. Turbulence Properties in the Cylinder Wake at HighReynolds Numbers[J]. Journal of Fluids and Structures,2006, V22(5):757-771
    [86] Barhoush H., Namini A. H., Skop R. A.. Vortex-shedding Analysis by Finite Elements[J].Journal of Sound and Vibration,1995, V184(l):111-27
    [87] ZhouC. Y.. Vortex-induced Vibration of an Elastic Circular Cylinder[J]. Journal of Fluidsand Structures,1999, V13(2):165-189
    [88] Evangelinos C., Lucor D., Kamiadakis G. E.. DNS-derived Force Distribution onFlexible Cylinders Subject to Vortex-induced Vibration[J]. Journal of Fluids andStructures,2000, V14(3):429-440
    [89]徐枫.结构流固耦合振动与流动控制的数值模拟[D].哈尔滨:哈尔滨工业大学,2009
    [90] Rajani B N., Kandasamy A., Majumdar S.. Numerical Simulation of Laminar Flow Pasta Circular Cylinder [J]. Applied Mathematical Modeling,2009, V33(3):1228-1247
    [91] Wei Li, Wei Guo, Hua Bai. Structural Design of Experimental Study onRain-wind-induced Vibration of Strayed Cables [A].2nd International Symposium onChemical Engineering and Material Properties[C]. TaiYuan:2012:1100-1115.
    [92]何向东,廖海黎.斜拉索风雨振动分析及机理初探[J].气动力学报,2005,23(4):480-483,495
    [93] G. Bartoli, F. Cluni, V. Gusella, L. Procino. Dynamics of Cable Under Wind Action:Wind Tunnel Experimental Analysis[J]. Journal of Wind Engineering and IndustrialAerodynamics,2006, V94: p259-273
    [94]方平治,顾明.圆柱两自由度涡激振动的数值模拟研究[J].同济大学学报,2008,36(3):295-298
    [95] Nicola Cosentino, Oliver Flamand, Claudio Ceccoli. Rain-wind induced vibration ofinclined stay cables[J]. Wind and structures,2003, V1(6):471-484
    [96]顾明,吕强.斜拉桥拉索风雨振理论分析的一个新方法[J].土木工程学报,2003,36(3):47-52
    [97]黄麟,郭志明,王国砚等.斜拉桥拉索风雨激振的理论分析[J].同济大学学报,2002,30(5):569-572
    [98]顾明,黄麟,王国砚.水线振荡对斜拉桥拉索风雨激振稳定性的作用[J].振动工程学报,2004,17(10):96-101
    [99]顾明,杜晓庆.斜拉桥三维索风雨激振准两自由度模型[J].力学季刊,2004,25(4):496-501
    [100]顾明,刘慈军,徐幼麟等.带人工雨线的拉索在风雨激励下的响应[J].应用数学和力学,2002,23(10):1047-1054
    [101] Yamaguchi H. Analytical Study on Growth Mechanism of Rain Vibration of Cables [J].Journal of Wind Engineering and Industrial Aerodynamics,1990, V33:73-80
    [102]徐刚,王靖夫,任文敏.斜拉桥拉索雨风振机理探讨[J].工程力学,2004,21(3):644-48
    [103]李明.空间折索单元的切线刚度矩阵[J].同济大学学报,2003,31(5):31-33
    [104]闻邦椿,李以农,韩清凯.非线性振动理论中的解析方法及工程应用[M].沈阳:东北大学出版社,2007:89-97
    [105] Matsumoto M.. Vortex-induced Cable Vibration of Cable-stayed[J]. Journal of WindEngineering and Industrial Aerodynamics,2001, V89:633–647
    [106] Matsumoto M.. Aerodynamics Behavior of Inclined Circular Cylinders-cableAerodynamics[J]. Journal of Wind Engineering and Industrial Aerodynamics,1990, V33:63-72
    [107] Michael C.H., Larsen A.. Aerodynamic Investigations for the Deck of StonecuttersBridge Emphasizing Reynolds Number Effects[A]. Proceedings of the2nd InternationalSymposium on Advances inWind&Structures[C]. Korea: Elsevier Publication,2002:649-656
    [108] D. Burton, D. Q. Cao, C. Wang. On the Stability of Stay Cables under Light Wind andRain Conditions[J]. Journal of sound and vibration,2004,11(5):22-31
    [109] Michel Virlogeux. Cable Vibrations in Cable-stayed Bridges[A]. Larsen, Esdahl.Bridge Aerodynamics[C]. Balkema: Rotterdam,1998:213-233
    [110]马星,仲政,胡瑞龙.斜拉索风雨激振空间模型[J].同济大学学报,2003,31(8):895-898
    [111] O.Flamand. Rain-wind-induced Vibration of Cables[J]. Journal of Wind Engineeringand Industrial Aerodynamics,2001, V57:353-362
    [112] Hikami Y., Shiraish N. Rain-wind Induced Vibrations of Cables in Cable Stayed Bridges[J]. Journal of Wind Engineering and Industrial Aerodynamics,1988, V29:409-418
    [113]宫赛.采用气动措施斜拉索表面压力分布试验研究[D].西安:长安大学,2012
    [114] Yuji Ohya. Drag of Circular Cylinders in the Atmospheric Turbulence[J]. FluidDynamics Research,2004, V34(4):135-144
    [115]方益红,周海俊.大跨度斜拉桥的拉索减振方法[J].上海建设科技,2005,2(12):15-16,25
    [116]胡兆同,李子青,刘健新.斜拉桥拉索的风振现象及其机理[J].结构工程师,1997,10(2):89-96
    [117]覃虹.斜拉索风致振动分析及抑振措施的研究现状[J].四川建筑,2004,24(1):34-35
    [118]张相庭.结构风压和风振计算[M].上海:同济大学出版社,1985:5-15
    [119]陈政清.斜拉索风雨振动现场观测与振动控制[J].建筑科学与工程学报,2005,22(4):5-10
    [120]顾明,刘慈军,项海帆等.斜拉桥拉索的风(雨)激振及控制[J].上海力学,1998,19(4):283-288
    [121]李明水,何向东.斜拉索风雨振动及制振措施的风洞试验研究[J].实验流体力学,2010,24(6):11-15
    [122]刘习军,王霞,贾启芬等.斜拉桥拉索的风雨激励振动特性[J].天津大学学报,2005,38(8):674-678
    [123]何晓鸣.斜拉索减振措施探讨[J].世界桥梁,200,2(1):72-75,78
    [124]符旭晨,周岱,吴筑海.斜拉索的风振与减振[J].振动与冲击,2004,23(3):29-32,36
    [125]陈涛,刘泉,顾金钧等.斜拉索风致振动及其抑振对策[J].广东公路交通,2004,2(6):5-7
    [126]王金峰,刘斌.斜拉索的振动与抑振措施探讨[J].交通工程建设,2005,3(6):47-52

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700