高速铁路隔振沟的隔振效应研究  

Research on effect of vibration isolation trench for high-speed railway

作　　者：傅玉勇[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《自然灾害学报》2011年第5期90-94,共5页Journal of Natural Disasters

基　　金：天津市科技创新专项基金项目(07FDZDSF02100)

摘　　要：结合工程实例,利用Ansys大型有限元通用软件对高速铁路隔振沟的隔振效应进行了数值模拟,分析了不同深度和宽度下隔振沟的隔振性能。研究表明,隔振沟的深度对隔振效应影响很大,隔振沟越深,隔振效果越明显;而隔振沟的宽度对隔振效应影响很小。最后,结合施工要求与经济条件,给出了高铁隔振沟的合理尺寸取值。Combined with engineering example, this paper uses the universal finite-element software--Ansys to nu- merically simulate the effect of vibration isolation trench on high-speed rail way, and analyzes the performance of vibration isolation by trench with different depths and widths. It is shown that the depth of trench exerts a tremen- dous influence on the efficiency of vibration isolation, the deeper is the trench, the more evident is the vibration isolation efficiency; while the width of trench makes no obrious effect on it. In the end, according to construction conditions and economical demands, a reasonable choice of trench dimension value is proposed.

关 键 词：高速铁路 隔振沟 隔振效应 ANSYS 

分 类 号：P457.6[天文地球—大气科学及气象学]