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Cognitions from the Schilthorn incident regarding track rope maintenance
Baumann, Max International Organization for Transportation by Rope. North American Continental Section
Baumann, Max
International Organization for Transportation by Rope. North American Continental Section
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Date
2009
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Abstract
The wire rope as, both a safety component and an intensely used wear-part influences the ropeway system safety for all phases of the service life.It's great advantages are its redundancy (interacting of a great number of stranded wires that form the rope) and its ability to call attention long before a dangerous condition may arise, thanks to physically recognizable criteria such as corrosion, wire breakage. An officially called systematic check-up - after the Schilthorn incident - at cableways of identical design unfortunately brought to light an unpleasant scene regarding wire rope maintenance practice: a very dangerous neglect of the appropriate visual inspection and maintenance had sneakingly spread out. This presentation shall address enhanced methodologies, with a focus on track ropes, for the prevention of rope damaging in the design phase, during installation and in operation. Due rope preparation (cleaning), finding and assessing of impending or existing damages, skilful restoration, and repair of existing damages which are essential for the substantiation and evidence of the safety of a ropeway system and which are indispensable premises to declare and ensure safety to operate at any time. The ropeway design engineers shall be reminded of material and design prerequisites for the prevention of wire rope damage and for the ease of the subsequent rope maintenance. And the procedures of wire rope work (e.g. stringing, rigging, relocating) shall be questioned and optimized continuously, with regard to damage prevention.
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