30.20 May 15, 2025
ISO
ISO/TC 82
International Standard
This document specifies the loads, the load combinations and the design procedures for the design of shaft system structures in both vertical and decline shafts. The shaft system structures covered by this document include buntons, guides and rails, station structures, rock loading structures, brattice walls, conveyance and vehicle arresting structures and dropsets, services supports, rope guide anchor supports and box fronts.
Rock support is excluded from the scope of this document.
This document does not cover matters of operational safety, or layout of the shaft system structures
This document adopts a limit states design philosophy.
PUBLISHED
ISO 19426-5:2018
IN_DEVELOPMENT
ISO/CD 19426-5
30.20
CD study/ballot initiated
May 15, 2025
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