Vibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method

A new train-induced vibration isolation measure of rubber-concrete alternating superposition in-filled trench is presented in this paper. For analyzing the vibration isolation effect of the new measure, this paper establishes a 2.5D train-track-layered foundation-filled trench model to analyze the d...

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Autores principales:	Liguo Jin, Jingya Wang, Xujin Liu, Qiangqiang Li, Zhenghua Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	rubber-concrete alternating superposition in-filled trench isolation trench trains moving loads 2.5D indirect boundary element method (IBEM) layered foundation Physics QC1-999
Acceso en línea:	https://doaj.org/article/b6a373aea0d44bc7a5f9fd351a29493a
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spelling	oai:doaj.org-article:b6a373aea0d44bc7a5f9fd351a29493a2021-12-01T04:49:58ZVibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method2296-424X10.3389/fphy.2021.774621https://doaj.org/article/b6a373aea0d44bc7a5f9fd351a29493a2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fphy.2021.774621/fullhttps://doaj.org/toc/2296-424XA new train-induced vibration isolation measure of rubber-concrete alternating superposition in-filled trench is presented in this paper. For analyzing the vibration isolation effect of the new measure, this paper establishes a 2.5D train-track-layered foundation-filled trench model to analyze the dynamics of track and layered foundation with the in-filled trench. The correctness of the model is verified by using the measured data of the Sweden X-2000 high-speed train. The vibration isolation effect of the rubber-concrete alternating superposition in-filled trench is calculated by using the actual soft soil foundation parameters of the X-2000 high-speed train, and the vibration isolation effect is also compared with that of the empty trench, rubber in-filled trench, and concrete in-filled trench. The results show that the vibration isolation effect of the rubber-concrete alternating superposition in-filled trench proposed in this paper is better than that of the C30 concrete in-filled trench, especially the impact on displacement. Compared with low-frequency vibrations generated by the lower train speed, the rubber-concrete alternating superposition in-filled trench has a better vibration isolation effect on high-frequency vibrations caused by higher-speed trains. The rubber-concrete alternately superposition in-filled trench has the frequency band characteristics of elastic waves. Elastic waves in the passband frequency range can propagate without attenuation, while the elastic waves in the forbidden frequency range will be filtered out.Liguo JinJingya WangXujin LiuQiangqiang LiZhenghua ZhouZhenghua ZhouFrontiers Media S.A.articlerubber-concrete alternating superposition in-filled trenchisolation trenchtrains moving loads2.5D indirect boundary element method (IBEM)layered foundationPhysicsQC1-999ENFrontiers in Physics, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rubber-concrete alternating superposition in-filled trench isolation trench trains moving loads 2.5D indirect boundary element method (IBEM) layered foundation Physics QC1-999
spellingShingle	rubber-concrete alternating superposition in-filled trench isolation trench trains moving loads 2.5D indirect boundary element method (IBEM) layered foundation Physics QC1-999 Liguo Jin Jingya Wang Xujin Liu Qiangqiang Li Zhenghua Zhou Zhenghua Zhou Vibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method
description	A new train-induced vibration isolation measure of rubber-concrete alternating superposition in-filled trench is presented in this paper. For analyzing the vibration isolation effect of the new measure, this paper establishes a 2.5D train-track-layered foundation-filled trench model to analyze the dynamics of track and layered foundation with the in-filled trench. The correctness of the model is verified by using the measured data of the Sweden X-2000 high-speed train. The vibration isolation effect of the rubber-concrete alternating superposition in-filled trench is calculated by using the actual soft soil foundation parameters of the X-2000 high-speed train, and the vibration isolation effect is also compared with that of the empty trench, rubber in-filled trench, and concrete in-filled trench. The results show that the vibration isolation effect of the rubber-concrete alternating superposition in-filled trench proposed in this paper is better than that of the C30 concrete in-filled trench, especially the impact on displacement. Compared with low-frequency vibrations generated by the lower train speed, the rubber-concrete alternating superposition in-filled trench has a better vibration isolation effect on high-frequency vibrations caused by higher-speed trains. The rubber-concrete alternately superposition in-filled trench has the frequency band characteristics of elastic waves. Elastic waves in the passband frequency range can propagate without attenuation, while the elastic waves in the forbidden frequency range will be filtered out.
format	article
author	Liguo Jin Jingya Wang Xujin Liu Qiangqiang Li Zhenghua Zhou Zhenghua Zhou
author_facet	Liguo Jin Jingya Wang Xujin Liu Qiangqiang Li Zhenghua Zhou Zhenghua Zhou
author_sort	Liguo Jin
title	Vibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method
title_short	Vibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method
title_full	Vibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method
title_fullStr	Vibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method
title_full_unstemmed	Vibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method
title_sort	vibration isolation of a rubber-concrete alternating superposition in-filled trench for train-induced environmental vibration based on 2.5d indirect boundary element method
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/b6a373aea0d44bc7a5f9fd351a29493a
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Vibration Isolation of a Rubber-Concrete Alternating Superposition In-Filled Trench for Train-Induced Environmental Vibration Based on 2.5D Indirect Boundary Element Method

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