Title:
ELEVATED DOUBLE-TRACK RAILWAY NOISE REDUCTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/021442
Kind Code:
A1
Abstract:
The present invention provides an elevated double-track railway noise reduction system, provided on an elevated railway having two parallel tracks. Each track comprises a substrate, a track bed, sleepers and steel rail. The system is characterized by comprising: near-rail sound barriers, which are arranged on the outer sides of each track in an extending direction of the steel rail; track sound absorbers, which are laid on the track beds in the extending direction of the steel rail; and either track bed vibration reduction pads or track bed vibration isolators, arranged between the track beds and the substrates. Each near-rail sound barrier comprises a sound barrier body, a mounting plate and a mounting frame. The mounting plates are fixedly mounted on the outer sides of each track by means of the mounting frames. The sound barrier bodies are mounted on the mounting plates. Each sound barrier body comprises a sound absorption layer, a sound transmission layer and a waterproof layer. The waterproof layer is arranged on the surface of the sound absorption layer facing the mounting plate. The sound transmission layer wraps the sound absorption layer. Edges of the sound transmission layer are fixedly connected to the surface of the waterproof layer facing the mounting plate.
Inventors:
CHEN TIANPING (CN)
WANG BO (CN)
GONG PING (CN)
MENG FANDONG (CN)
LIN JIANXUN (CN)
WANG BO (CN)
GONG PING (CN)
MENG FANDONG (CN)
LIN JIANXUN (CN)
Application Number:
PCT/CN2022/139191
Publication Date:
February 01, 2024
Filing Date:
December 15, 2022
Export Citation:
Assignee:
ZHEJIANG TIANTIE IND CO LTD (CN)
International Classes:
E01B19/00; E01F8/00
Foreign References:
| CN217810251U | 2022-11-15 | |||
| CN214497240U | 2021-10-26 | |||
| CN101713171A | 2010-05-26 | |||
| CN216040442U | 2022-03-15 | |||
| CN204151704U | 2015-02-11 | |||
| CN110552263A | 2019-12-10 |
Other References:
HUATUO YIN: "Quantitative Analysis of Noise Reduction Effect of Elevated Vibration Damping Track", URBAN RAPID RAIL TRANSIT, vol. 31, no. 4, 18 August 2018 (2018-08-18), pages 45 - 50, XP093133445, ISSN: 1672-6073, DOI: 10.3969/j.issn.1672-6073.2018.04.010
Attorney, Agent or Firm:
SHANGHAI DANRONG & ZONGDE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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