CAJ | 학술논문

以兰州地铁1号线为背景，利用有限元分析软件 Midas －GTS 建立“隧道－浮置板轨道－地基土－白衣寺塔”三维整体有限元动力学模型，输入现有隧道设计参数、动力荷载以及各土层的静动力学参数，分析了不同地铁列车运行速度引起的振动对白衣寺塔的动力响应，为确保白衣寺塔的安全，考虑采用弹簧浮置道板减振措施，分别研究钢轨下扣件刚度、浮置板下弹簧刚度对减振效果的影响，结果表明：列车运行速度、钢轨扣件刚度和浮置板下支撑刚度均对各动力响应影响十分显著，并当轨道下扣件刚度和浮置板下支撑刚度取值合理时，减振效果显著。
이란주지철1호선위배경，이용유한원분석연건 Midas －GTS 건립“수도－부치판궤도－지기토－백의사탑”삼유정체유한원동역학모형，수입현유수도설계삼수、동력하재이급각토층적정동역학삼수，분석료불동지철열차운행속도인기적진동대백의사탑적동력향응，위학보백의사탑적안전，고필채용탄황부치도판감진조시，분별연구강궤하구건강도、부치판하탄황강도대감진효과적영향，결과표명：열차운행속도、강궤구건강도화부치판하지탱강도균대각동력향응영향십분현저，병당궤도하구건강도화부치판하지탱강도취치합리시，감진효과현저。
Taking Lanzhou Metro Line 1 as the study project ,the finite element analysis software Midas GTS was used to establish the “tunnel - floating slab track (FST) - the foundation soil - White Temple Tower” three-dimensional dynamic model .And then ,the existing tunnel design parameters ,dynamic loading and the static and dynamic parameters of each soil layer were input to analyze the influences of different vibrations caused by subway trains at different running speed on the dynamic response of White Temple Tower .In order to ensure the integrity of the White Temple Tower ,the damping measure of floating slab track fitted with springs was adopted ,and the impact of the rail fastener stiffness and the spring stiffness on the vibration reduction effect was studied respectively .The results indicate that the train running speed ,the rail fastener stiffness and the spring stiffness have significant influences on the dynamic response and when the values of the rail fastener stiffness and spring stiffness were chosen wisely ,the effects of the vibration reduction is remarkable .