Ballast mats for the reduction of railway traffic vibrations. Numerical study
This paper presents a numerical study developed in order to understand the dynamic behavior of ballasted tracks with mats including the train–track–ground interaction. In order to achieve that goal, a case study is modeled by a 2.5D FEM–BEM formulation. A comprehensive approach is presented and the...
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| Veröffentlicht in: | Soil dynamics and earthquake engineering (1984) 2012-11, Vol.42, p.137-150 |
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| container_title | Soil dynamics and earthquake engineering (1984) |
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| creator | Alves Costa, P. Calçada, R. Silva Cardoso, A. |
| description | This paper presents a numerical study developed in order to understand the dynamic behavior of ballasted tracks with mats including the train–track–ground interaction. In order to achieve that goal, a case study is modeled by a 2.5D FEM–BEM formulation. A comprehensive approach is presented and the effects of the mat stiffness and location in depth are discussed. The comparison between isolated and non-isolated scenarios allowed concluding that the ballast mat has a dual effect, focusing on the train–track dynamic behavior and on the reduction of high-frequency vibrations that are transmitted to the ground. Furthermore, it was found that global efficiency can be reached by placing the mat beneath the subballast instead of below the ballast layer.
► Numerical modelling of track–ground vibrations induced by traffic. ► Mitigation of vibrations induced by railway traffic. ► Study of the efficiency of ballast mats for the mitigation of vibrations induced by traffic. ► Dynamic train–track–ground interaction. |
| doi_str_mv | 10.1016/j.soildyn.2012.06.014 |
| format | Article |
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► Numerical modelling of track–ground vibrations induced by traffic. ► Mitigation of vibrations induced by railway traffic. ► Study of the efficiency of ballast mats for the mitigation of vibrations induced by traffic. ► Dynamic train–track–ground interaction.</description><subject>Ballast</subject><subject>Dynamics</subject><subject>Focusing</subject><subject>Mathematical models</subject><subject>Mats</subject><subject>Reduction</subject><subject>Seismic phenomena</subject><subject>Vibration</subject><issn>0267-7261</issn><issn>1879-341X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkM1LwzAYxoMoOKd_gpCjl9a8TdukJ9HhF0y9KHgLafoGM9p1Julk_70t232n5_B8wPMj5BpYCgzK21Uaetc2u3WaMchSVqYM8hMyAymqhOfwfUpmLCtFIrISzslFCCvGQIAsZ-TtQbetDpF2OgZqe0_jD1KPzWCi69e0t9Rr1_7pHY1eW-sM3bra68kMKX0fOvTO6JaGODS7S3JmdRvw6qBz8vX0-Ll4SZYfz6-L-2WieSVjUiGrheHSQoY15Cg1qw3njc5EpWVlC8S8Bp4jcGYKYXIwjawNghgNW0k-Jzf73Y3vfwcMUXUuGByfrLEfgoKyyjgTUBXHo3mZF1JwPq0W-6jxfQgerdp412m_U8DURFqt1IG0mkgrVqqR9Ni72_dwvLx16FUwDtcGG-fRRNX07sjCPwWwius</recordid><startdate>201211</startdate><enddate>201211</enddate><creator>Alves Costa, P.</creator><creator>Calçada, R.</creator><creator>Silva Cardoso, A.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>7SM</scope><scope>7SU</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>201211</creationdate><title>Ballast mats for the reduction of railway traffic vibrations. Numerical study</title><author>Alves Costa, P. ; Calçada, R. ; Silva Cardoso, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a398t-9e0b7c38f12eb14e8a0bc33da279a89f5ee4b134e130c57c41cd8bce17ee4f983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Ballast</topic><topic>Dynamics</topic><topic>Focusing</topic><topic>Mathematical models</topic><topic>Mats</topic><topic>Reduction</topic><topic>Seismic phenomena</topic><topic>Vibration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alves Costa, P.</creatorcontrib><creatorcontrib>Calçada, R.</creatorcontrib><creatorcontrib>Silva Cardoso, A.</creatorcontrib><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Earthquake Engineering Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Soil dynamics and earthquake engineering (1984)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alves Costa, P.</au><au>Calçada, R.</au><au>Silva Cardoso, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ballast mats for the reduction of railway traffic vibrations. Numerical study</atitle><jtitle>Soil dynamics and earthquake engineering (1984)</jtitle><date>2012-11</date><risdate>2012</risdate><volume>42</volume><spage>137</spage><epage>150</epage><pages>137-150</pages><issn>0267-7261</issn><eissn>1879-341X</eissn><abstract>This paper presents a numerical study developed in order to understand the dynamic behavior of ballasted tracks with mats including the train–track–ground interaction. In order to achieve that goal, a case study is modeled by a 2.5D FEM–BEM formulation. A comprehensive approach is presented and the effects of the mat stiffness and location in depth are discussed. The comparison between isolated and non-isolated scenarios allowed concluding that the ballast mat has a dual effect, focusing on the train–track dynamic behavior and on the reduction of high-frequency vibrations that are transmitted to the ground. Furthermore, it was found that global efficiency can be reached by placing the mat beneath the subballast instead of below the ballast layer.
► Numerical modelling of track–ground vibrations induced by traffic. ► Mitigation of vibrations induced by railway traffic. ► Study of the efficiency of ballast mats for the mitigation of vibrations induced by traffic. ► Dynamic train–track–ground interaction.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.soildyn.2012.06.014</doi><tpages>14</tpages></addata></record> |
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| ispartof | Soil dynamics and earthquake engineering (1984), 2012-11, Vol.42, p.137-150 |
| issn | 0267-7261 1879-341X |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Ballast Dynamics Focusing Mathematical models Mats Reduction Seismic phenomena Vibration |
| title | Ballast mats for the reduction of railway traffic vibrations. Numerical study |
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