13.07.2015 Views

Mass-Spring System - Railway Pro

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6ConstructionErrorsOur experiencegives you securityConstruction or design errors andimproper or absent features can insome cases affect the real propertiesof mass-spring systems.Examples include:— Insufficient or absent drainage resulting in a “stamp effect”within the system— For full-surface systems: absent, unsuitable or excessively stiffside mats— Faulty isolation of cable shafts, drainage inlets and otherconnections— Unsuitable support material or support layer thicknesses belowspecific minimums— Large number of installation joints— Improper, careless installation of the support material— Structural design, such as the length of the deck slab or designof the reinforcement, insufficient load distribution on theelastomerExecution flaws in a mass-springsystem can generally only becorrected later at great expense andeffort. Depending on the severity of theflaws, it is sometimes necessary tocompletely rebuild the track.12

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