Community Research and Development Information Service - CORDIS

Abstract

Prestretching of the ropes anticipates much of the permanent elongation occurring during the initial phase of operation. This procedure helps to reduce interruptions and expenditure for shortening the ropes at attachments, as well as to reduce previous difficulties during the start-up period. The frequently occurring problems of balancing rope loads on multirope installations are eliminated when using prestretched ropes. The expected extension of operational life of prestretched ropes is confirmed. The provision of magnetic rope markers for contact-free measurement of local rope elongations was continued. The new system no longer relies on coils, but uses Hall effect sensors instead. For newly installed winding ropes elongations between 0.4% and 0.8% were expected during the first operational phase; the required measuring accuracy was attained.

Additional information

Authors: WBK WESTFAELISCHE BERGGEWERKSCHAFTSKASSE, BOCHUM (DE), WESTFAELISCHE BERGGEWERKSCHAFTSKASSE, BOCHUM (DE)
Bibliographic Reference: EUR 12011 DE (1990), 169 PP., MF, ECU 8, AVAILABLE FROM THE OFFICE FOR OFFICIAL PUBLICATIONS OF THE EUROPEAN COMMUNITIES, L-2985 LUXEMBOURG
Availability: Can be ordered online
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