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Dynamic responses of a twin-tunnel subjected to moving loads in a saturated half-space
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Sun, Hong-lei, Chen, An-hua, Shi, Li, Geng, Xue-yu and Wang, Yu (2018) Dynamic responses of a twin-tunnel subjected to moving loads in a saturated half-space. Mathematical Problems in Engineering, 2018 . 6949507. doi:10.1155/2018/6949507 ISSN 1024-123X .
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Official URL: https://doi.org/10.1155/2018/6949507
Abstract
With the fast development of rail transit, the environmental vibration problems caused by subways have received increasing attention. A 3D finite element model was built in this study to investigate the ground vibrations induced by the moving load operating in the parallel twin tunnels. Compared to the model consisting of a single tunnel that was commonly adopted in the past studies, a pair of tunnels is considered and the surrounding medium of the tunnels is taken as a saturated porous medium. The governing equations of the 3D finite element method modeling of the saturated poroelastic soil have been derived according to Biot’s theory. Computed results showed that the dynamic response of the twin-tunnel model is greater than that of the single tunnel model. And the spacing between two tunnels, tunnel buried depth and load moving speed are the essential parameters to determine the dynamic response of the tunnel and soil.
Item Type: | Journal Article | ||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TF Railroad engineering and operation |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Library of Congress Subject Headings (LCSH): | High speed trains -- Vibration, Soil dynamics, Transportation -- Environmental aspects, Soils -- Vibration | ||||||
Journal or Publication Title: | Mathematical Problems in Engineering | ||||||
Publisher: | Hindawi Publishing | ||||||
ISSN: | 1024-123X | ||||||
Official Date: | 12 December 2018 | ||||||
Dates: |
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Volume: | 2018 | ||||||
Article Number: | 6949507 | ||||||
DOI: | 10.1155/2018/6949507 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 12 December 2018 | ||||||
Date of first compliant Open Access: | 4 January 2019 | ||||||
Funder: | National Key Technology R&D Program of China, Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC) | ||||||
Grant number: | 016YFC0800200 (National Key Technology R&D Program of China), 51620105008 (NSFC), 51608482 (NSFC), 51478424 (NSFC) | ||||||
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