轨道交通连续型隔振屏障隔振效果有限元分析  

Finite Element Analysis of Vibration-isolation Effect of Continuous-vibration Isolation Barriers in Rail Transit

作　　者：郁雯[1,2] 左岩岩 刘杰[1,2] 温孟瑶[1,2] YU Wen;ZUO Yanyan;LIU Jie;WEN Mengyao(Hebei University of Architecture, Zhangjiakou 075000, Hebei, China;Hebei Key Laboratory of Diagnosis, Reconstruction and Anti-disaster of Civil Engineering, Zhangjiakou 075000, Hebei, China;Zhangjiakou Vocational and Technical College, Zhangjiakou 075000, Hebei, China)

机构地区：[1]河北建筑工程学院,河北张家口075000 [2]河北省土木工程诊断、改造与抗灾重点实验室,河北张家口075000 [3]张家口职业技术学院,河北张家口075000

出　　处：《地震工程学报》2020年第5期1317-1325,共9页China Earthquake Engineering Journal

基　　金：张家口市科学技术研究与发展指令计划项目(1811009B-02);2020年河北省硕士研究生创新资助项目(CXZZSS2020140)。

摘　　要：为评价轨道交通连续型隔振屏障的隔振效果,通过Abaqus有限元数值方法,对空沟、填充沟等连续型屏障的隔振效果及其影响因素进行分析。结果表明:隔振屏障前侧振动加强,屏障后侧存在较好地隔振效果,屏障参数的变化对屏障前振动加强效果的影响较小,部分屏障参数的变化对屏障后侧隔振效果存在影响;屏障的隔振性能随屏障深度的增大而增强,受屏障宽度的影响较小;橡胶板墙隔振性能较差,空沟和混凝土板墙的隔振性能较强,空沟的隔振效果强于混凝土板墙;屏障距离路基越近隔振效果越好,建议工程上应用屏障隔振时,屏障靠近路基设置。To evaluate the vibration-isolation effect of continuous barriers in rail transit systems,we used Abaqus software to analyze the isolation effect and influencing factors of open and in-filled trenches.The results showed that the vibration in front of the isolation barrier is enhanced,and the isolation effect in the back of the barrier is good.A change in the barrier parameters has little influence on the vibration strengthening effect in front of the barrier,but a change in some parameters has some influence on the vibration-isolation effect at the rear of the barrier.The vibration-isolation performance of the barrier increases with increased barrier depth,and is less affected by the barrier width.The vibration-isolation performance of rubber-plate walls is poor,and those of open trenches and concrete-slab walls are strong,with the isolation effect of the open trenches better than that of concrete-slab walls.The closer the barrier is to the roadbed,the better is the isolation effect,so we suggest that isolation barriers be installed near the subgrade when used in engineering projects.

关 键 词：轨道交通 ABAQUS 隔振屏障 隔振效果 

分 类 号：TU435[建筑科学—岩土工程]