[1]刘晶磊,张政,夏彬,等.高速铁路桩板结构对瑞利波的被动隔震试验研究[J].世界地震工程,2023,39(01):156-163.[doi:10.19994/j.cnki.WEE.2023.0017]
　LIU Jinglei,ZHANG Zheng,XIA Bin,et al.Experimental research on passive vibration isolation of the pile-slab structure to Rayleigh wave in high speed railway[J].,2023,39(01):156-163.[doi:10.19994/j.cnki.WEE.2023.0017]
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高速铁路桩板结构对瑞利波的被动隔震试验研究
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《世界地震工程》[ISSN:/CN:]

卷:
39
期数:
2023年01期
页码:
156-163
栏目:
常规论文
出版日期:
2023-02-15

文章信息/Info

Title:
Experimental research on passive vibration isolation of the pile-slab structure to Rayleigh wave in high speed railway
文章编号:
1007-6069(2023)01-0156-08
作者:
刘晶磊1; 2; 3; 张政1; 2; 3; 夏彬1; 2; 3; 刘佳凡1; 2; 3; 赵敏2; 毕全超2
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,河北张家口075000;3.河北省寒冷地区交通基础设施工程技术创新中心,河北张家口075000
Author(s):
LIU Jinglei1; 2; 3;  ZHANG Zheng1; 2; 3;  XIA Bin1; 2; 3;  LIU Jiafan1; 2; 3;  ZHAO Min2;  BI Quanchao2
1. Hebei Key Laboratory of Diagnosis, Reconstruction and Anti-disaster of Civil Engineering, Zhangjiakou 075000, China; 2. Hebei University of Architecture, Zhangjiakou 075000, China; 3. Hebei Innovation Centerof Transportation Infrastructure in Cold Region, Zhangjiakou 075000, China
关键词:
桩板结构;  瑞利波;  被动隔震性能;  隔震区域
Keywords:
pile-slab structure;  Rayleigh wave;  passive vibration isolation performance;  vibration isolation area
分类号:
TU435
DOI:
10.19994/j.cnki.WEE.2023.0017
文献标志码:
A
摘要:
为研究高速铁路桩板结构被动隔震效果,以减震率作为隔震性能评价指标。通过模型试验分析不同几何参数的桩板结构隔震性能,并绘制减震率等值线图以描述其隔震区域。基于试验得到以下结论:桩板结构可以有效阻隔瑞利波,增加桩长、桩径和承载板厚度,并减小埋深与桩间距,可以提高隔震性能并增大有效隔震面积。减震率增长幅度随桩长、桩径和承载板厚度增大而减小,故桩径和桩间距参数宜控制在0.33至0.67之间,桩长参数宜控制在0.40至0.80之间,且应尽可能减小埋深。当砼使用方量相同时,隔震效果从强到弱依次为:桩长、承载板厚度和桩径。
Abstract:
In order to study the passive vibration isolation effect of the pile-slab structure of high-speed railway, the seismic reduction rate is used as the evaluation index of vibration isolation performance. Through the model test, the vibration isolation performance of the pile-slab structure with different geometric parameters is compared and analyzed, and the isoline map of seismic reduction rate is drawn to describe its vibration isolation area. Based on the test, the following conclusions are obtained: the pile-plate structure can effectively block the Rayleigh wave. Increasing the pile length, pile diameter and bearing slab thickness, and reducing the buried depth and pile spacing can improve the vibration isolation performance and increase the effective vibration isolation area.The increase range of seismic reduction rate decreases with the increase of pile length, pile diameter and bearing slab thickness, so the parameters of pile diameter and pile spacing should be controlled between 0.33 and 0.67, the parameters of pile length should be controlled between 0.40 and 0.80, and the buried depth should be reduced as much as possible. When the concrete volume is the same, the isolation effect from strong to weak is: pile length, bearing slab thickness, pile diameter.

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备注/Memo

备注/Memo:
收稿日期:2022-03-17; 修回日期:2022-06-01
基金项目:2022年度河北省高等学校科学研究重点项目(ZD2022017); 河北建筑工程学院研究生创新基金(XY2023044)
作者简介:刘晶磊(1981 —),男,副教授,博士,主要从事土的动力特性、铁路路基研究. E-mail:kingbest_1118@163.com
通讯作者:毕全超(1981 —),男,副教授,从事桥梁隧道工程研究. E-mail:hbjzdxbqc@sina.com
更新日期/Last Update: 1900-01-01