铁道科学与工程学报2018，Vol.15Issue(4)：829-836,8.
高速铁路连续隔振措施减隔振效果试验研究
The research on the model test of the effect of vibration isolation about continuous vibration isolation measures in high speed railway
摘要
Abstract
In order to study the effect of vibration isolation of continuous vibration isolation measures and to analyze the vibration isolation effect of different measures, the different continuous vibration isolation measures were set in the model test case and the acceleration of surface soil was employed as the evaluation standard. The effect of vibration isolation was studied with respect to the empty trench, rubber granular filling trench, sand filling trench、gravel filling trench. The results indicate that: With increasing distance from source the acceleration of soil surface decreases, and the acceleration attenuation is faster in the nearer. With the increase of frequency, the acceleration decreases accordingly. The reducing vibration isolation effect of empty trench is obvious, and the depth of open trench is a critical element influencing the effect of vibration reduction, while the width of open trench has less effect on vibration reduction; The reducing vibration isolation effect of granular filling trench and gravel filling trench is not significant; It is obvious about the reducing vibration isolation effect about sand filling trench, and the reducing vibration isolation effect is enhanced with the increase of sand density; The sort order of reducing vibration isolation effect about several measures is the empty trench, sand filling trench, rubber granular filling trench, gravel filling trench.关键词
模型试验/连续隔振措施/减隔振效果Key words
model test/continuous vibration isolation measures/vibration isolation effect分类
建筑与水利引用本文复制引用
毕全超,赵倩,刘晶磊,宋绪国..高速铁路连续隔振措施减隔振效果试验研究[J].铁道科学与工程学报,2018,15(4):829-836,8.基金项目
河北省青年拔尖人才计划资助项目(BJ2016018) （BJ2016018）
张家口市科技局科技计划资助项目(1511074B) （1511074B）
