[1]刘晶磊,张瑞恒,赵晓玉,等.轨道交通典型隔振屏障隔振效果模型试验研究[J].地震工程与工程振动,2019,39(01):231-241.[doi:10.13197/j.eeev.2019.01.233.liujl.027]
 LIU Jinglei,ZHANG Ruiheng,ZHAO Xiaoyu,et al.The research on the model test on vibration isolation effect of typical vibration isolation bar in rail transit[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(01):231-241.[doi:10.13197/j.eeev.2019.01.233.liujl.027]
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轨道交通典型隔振屏障隔振效果模型试验研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年01
页码:
231-241
栏目:
论文
出版日期:
2019-02-28

文章信息/Info

Title:
The research on the model test on vibration isolation effect of typical vibration isolation bar in rail transit
作者:
刘晶磊12 张瑞恒12 赵晓玉12 刘恒12 赵倩12 王奥运12
1. 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;
2. 河北建筑工程学院 土木工程学院, 河北 张家口 075000
Author(s):
LIU Jinglei12 ZHANG Ruiheng12 ZHAO Xiaoyu12 LIU Huan12 ZHAO Qian12 WANG Aoyun12
1. Hebei Key Laboratory of Diagnosis, Reconstruction and Anti-disaster of Civil Engineering, Zhangjiakou 075000, China;
2. School of Civil Engineering, Hebei University of Architecture, Zhangjiakou 075000, China
关键词:
轨道交通隔振屏障混凝土空心桩模型试验隔振效果
Keywords:
rail transitisolation barrierconcrete hollow pilemodel testisolation effect
分类号:
TU435
DOI:
10.13197/j.eeev.2019.01.233.liujl.027
摘要:
为了研究轨道交通中几种典型隔振屏障的隔振效果,本文通过室外模型试验,以振动加速度级作为振动评价标准,对其做出分析并给出相应评价。结果表明:(1)土体振动主要是由中低频振动波引起的;(2)对比分析几种典型连续隔振屏障的隔振效果:空沟>地下连续墙>碎石填充沟>橡胶填充沟;综合考察几种非连续隔振屏障得出:混凝土桩的隔振效果优于隔振井;隔振效果优劣比较为:混凝土实心桩 > 混凝土空心桩 > PVC空井 > 碎石填充井 > 橡胶填充井;(3)对于单排混凝土空心桩,空心率越大,隔振效果相对越差;空心桩内部形状的改变对隔振效果影响不大,外部形状的改变对隔振效果有一定程度影响,但效果不显著,且桩体外截面为方形时的隔振效果较圆形差。
Abstract:
In order to study the vibration isolation effect of several typical vibration isolation barriers in rail transit, through the outdoor model test, the vibration acceleration level as the vibration evaluation standard, to make its analysis and gives the corresponding evaluation. The results show that:(1) Low frequency vibration wave is the main reason for the vibration of the soil. (2) Comparative analysis the isolation performance of several typical continuous isolation barriers:empty trench > continuous concrete wall > gravel-filled trench > rubber-filled trench. A comprehensive study of several non continuous isolation barriers that the isolation performance of the concrete piles is better than vibration wells. Several discontinuous vibration isolation methods are as follows:concrete solid pile > concrete hollow pile > PVC well > gravel-filled well > rubber-filled well. (3) For a single row of concrete hollow pile, the hollow rate is larger, the vibration isolation performance is relatively poor; Hollow pile internal shape change has little influence on the vibration isolation performance, external shape change has certain influence on the vibration isolation performance, but the effect is not significant, and the isolation performance of round piles is greater than the square pile.

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备注/Memo

备注/Memo:
收稿日期:2017-11-02;改回日期:2018-03-05。
基金项目:河北省青年拔尖人才计划项目(BJ2016018);河北建筑工程学院创新基金项目(XA201810);2018年度张家口市科学技术研究与发展计划项目(1811009B-13)
作者简介:刘晶磊(1981-),男,副教授,博士,主要从事土的动力特性、铁路路基的研究.E-mail:kingbest_1118@163.com
更新日期/Last Update: 1900-01-01