CAJ | 학술논문

基于轮轨相互作用原理，建立了城轨交通高架线路列车振动荷载激励函数。将该激励力作用在有限元软件建立的三维轨道支承结构和土体传播路径计算模型上，对地铁运行引起的周边环境振动响应进行了仿真模拟，并利用现场实测数据进行了比较和验证。进一步，分析了列车运行速度和场地土特性对环境振动的参数影响。在对各参数的影响特征进行了定量分析的基础上，通过统计分析，建立了城市轨道交通高架线路环境振动的振级预测公式，并利用现场实测数据进行了验证。研究表明，仿真模拟和预测结果能够较为真实的反映城轨交通高架线路运行引起的环境振动的实际情况。
기우륜궤상호작용원리，건립료성궤교통고가선로열차진동하재격려함수。장해격려력작용재유한원연건건립적삼유궤도지승결구화토체전파로경계산모형상，대지철운행인기적주변배경진동향응진행료방진모의，병이용현장실측수거진행료비교화험증。진일보，분석료열차운행속도화장지토특성대배경진동적삼수영향。재대각삼수적영향특정진행료정량분석적기출상，통과통계분석，건립료성시궤도교통고가선로배경진동적진급예측공식，병이용현장실측수거진행료험증。연구표명，방진모의화예측결과능구교위진실적반영성궤교통고가선로운행인기적배경진동적실제정황。
Firstly, on the basis of wheel-track interaction theory, a function of exciting force of moving train on elevated line is established. Then, the exciting force is acted on the three-dimensional numerical models of rail structure, elevated line and soil foundation by utilizing the finite element software. The surrounding environment vibration response caused by train operation is simulated;and the numerical results are compared and verified by the field measurement data. Furthermore, the parameter effects of length of bridge span, train speed and soil properties on environment vibration are studied. On the basis of investigation of parameter influence characters and according to the statistical analysis, a prediction formula of vibration level on ground induced by urban rail transit with elevated line is presented and validated by the field experiments. The research results show that the numerical simulation and prediction can truly reflect the actual environment vibration caused by urban rail transit with elevated line.