[1]刘尊景,周奇辉,孙苗苗,等.类矩形地铁盾构隧道运营时的隔振性能分析[J].华南地震,2022,(03):78-84.[doi:10.13512/j.hndz.2022.03.10]
 LIU Zunjing,ZHOU Qihui,SUN Miaomiao,et al.Analysis of Vibration Isolation Performance of Quasi-rectangular Metro Shield Tunnel in Operation[J].,2022,(03):78-84.[doi:10.13512/j.hndz.2022.03.10]
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类矩形地铁盾构隧道运营时的隔振性能分析()
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华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2022年03期
页码:
78-84
栏目:
土木工程防震减灾
出版日期:
2022-09-15

文章信息/Info

Title:
Analysis of Vibration Isolation Performance of Quasi-rectangular Metro Shield Tunnel in Operation
文章编号:
1001-8662(2022)03-0078-07
作者:
刘尊景12周奇辉1孙苗苗34丁 智34黄 灿3黄涨功5
1.中国电建集团华东勘测设计研究院有限公司,杭州311122;2.浙江省智慧交通工程技术研究中心,杭州 311122;3.浙大城市学院工程学院,杭州310015;4.浙江省城市盾构隧道安全建造与智能养护重点实验室,杭州 310015.;5.浙江大学建筑工程学院,杭州310058
Author(s):
LIU Zunjing12ZHOU Qihui1SUN Miaomiao34DING Zhi34HUANG Can3HUANG Zhanggong5
1.Power China Huadong Engineering Co.,Ltd.,Hangzhou 311122,China;2.Engineering Research Center of Smart Rail Transportation,Hangzhou 311122, China;3.Department of Civil Engineering, Zhejiang University City College , Hangzhou 310015, China;4.Key Laboratory for Safe Construction and Intelligent Maintenance of Shield Tunnels in Key Cities of Zhejiang Province,Hangzhou 310015, China;5.College of Civil Engineering and Architecture, Zhejiang University , Hangzhou 310058, China
关键词:
2.5有限元法类矩形盾构隧道隔振桩隔振沟材料
Keywords:
2.5 finite element method Quasi-rectangular shield tunnel Vibration isolation piles Vibration isolate ditchMaterials
分类号:
U455.43
DOI:
10.13512/j.hndz.2022.03.10
文献标志码:
A
摘要:
为了研究类矩形盾构隧道运营时的隔振设施的性能和效果,将以2.5维有限元方法设置隔振桩和隔振沟两种隔振措施的模型比较分析在运营时空沟、填充沟、长短桩、刚柔桩以及复合屏障等措施对类矩形盾构隧道的隔振效果。研究结果表明:采用长短桩进行隔振时,增加短桩的长度可增加隔振效果;刚柔桩的隔振效果较好,可在振动强度最大处进行减振;使用空沟+桩应尽量设置在被保护建筑物前;填充沟+桩的新型复合隔振措施对地基整体均有隔振效果,隔振效果最佳位置位于沟中心处。研究结果可为今后类矩形盾构隧道运营的隔振措施设计进行参考。
Abstract:
In order to study the performance and effect of vibration isolation facilities during the operation of rectangular shield tunnels, this paper compares the vibration isolation effects of two kinds of vibration isolation measures of vibration isolation pile and vibration isolation ditch set up by 2.5-dimensional finite element method in the operation of space-time trenches,filled ditches,long and short piles,rigid and flexible piles and composite barriers. The results show that when the long and short piles are used for vibration isolation,increasing the length of the short piles can increase the vibration isolation effect; the rigid-flex pile has a better vibration isolation effect, and it can be set at the place where the vibration intensity is greatest; the use of empty trenches+ piles should be placed in front of the protected building as far as possible;the new composite vibration isolation measure of filling trench+ pile has an isolation effect on the whole foundation, and the best position of vibration isolation effect is located in the center of the ditch. The research results can be used as a reference for the design of vibration isolation measures for future operation of rectangular shield tunnels.

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备注/Memo

备注/Memo:
收稿日期:2022-05-10
基金项目:浙江省重点研发计划项目(2020C01102)
作者简介:刘尊景(1986-),男,高级工程师,硕士,主要从事岩土与隧道工程设计、地铁保护和隧道修复加固相关工作。E-mail: liu_zj@hdec.com
通信作者:孙苗苗(1984-),女,博士,副教授,主要从事轨道交通隔振和土动力学的研究。E-mail:sunmm@zucc.edu.cn
更新日期/Last Update: 2022-09-15