质量弹簧系统
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Design
Standard design of heavy Mass-Spring-System Individual slabs
Züblin design One continuous slab
Construction
Track slab Tunnel floor
Baufortschritt
Thank you for your attention
谢谢 !
…… and understanding of Slab Track and MSS as an integrated system
Standard conventional
Construction
Finished MSS
Construction method
Option 1 With precast slab
Option 2 e.g. sand or Styrofoam as temporary formwork
Züblin’s Installation technology
1. 2. Erstellen der Tunnelsohle Erstellen der Masse-Feder-Platte direkt auf der Sohle (Trennmittel zwischen Sohle und MFS) 4. 5. Einbau des an das MFS anschließenden Widerlagers mit Verbindung zur Sohle Einbau der Schienen mit Überhöhung am Übergang MFS Festpunkt Überhöhung = Einsinktiefe MFS
Natural Frequency Elastic Fastener LVT Light MSS Heavy MSS 22 -30 ~ 20 15–25 HZ 7-12 Hz Vibration reduction 8 – 10 dB 8 – 10 dB 15 – 20 dB > 20dB Light Mass-Spring-System with elastic mat > 15 Hz
Construction
Installation of Slab on the tunnel floor
Jacking up of the concrete slab
Installation of bearings and lowering slab
High speed Link Frankfurt - Cologne
Mass-Spring-System with individual bearings 7 -12 HZ
Materials
LVT
Elastic Fastener LVT Light MSS Heavy MSS
Fastener + elastic pad Concrete block + elastic pad Elastic mat + concrete slab Elastic bearings + concrete slab Light Mass-Spring-System with elastic mat > 15 Hz
MSS 850m jointless Speed 250 km/h
Meiderich / Duisburg Ruhrtunnel
Total length 3.658m MSS 850m jointless
隧道截面 Querschnitt TUNNEL
Ed. Züblin AG Engineering Know-How …………
Mass-Spring-System with individual bearings 7 -12 HZ
Design & Construction
Design and decision for the System is usually decided by the required values for vibration reduction Variations possible in regard to construction and installation method Züblin is utilizing all established Systems, In addition having optimized especially the design and construction technology of heavy Mass Spring System; using: 1. Continuous slab 2. Installation method of track bearing slab
Solution
Eliminatiom of Vibration by Mass-Spring System
Βιβλιοθήκη Baidu
Emission (dB)
70 60 50 40 30 60 90 120 Frequenz (Hz)
System ? Materials ? Construction ?
System
LVT
www.zueblin.de
Mass - Spring - System
Mass-Spring-System to reduce vibration and noise 德国旭普林减震降噪技术—
质量弹簧系统
Problem
Vibration Transmission
Emission (dB)
70 60 50 40 30 60 90 Frequenz (Hz) 120