BS ISO 19426-7:2021

$198.66

Structures for mine shafts – Rope guides

Published By	Publication Date	Number of Pages
BSI	2021	62

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Category: BSI

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This document specifies the design loads and the design procedures for the design of rope guides and rubbing ropes used for guiding conveyances and preventing collisions in vertical mine shafts for permanent operations. It covers personnel and material hoisting, as well as rock hoisting installations. There are no fundamental limitations placed on the size of conveyances, the hoisting speeds, shaft layout configurations, or the shaft depth.

This document can be applicable to shaft sinking operations when kibbles run on the stage ropes.

There are many reasons, based on technical, timing, and cost factors, why rope guides are selected or not for a particular application, following careful assessment at feasibility stage of any project where rope guides are considered. This document provides some comments regarding the advantages and disadvantages of using rope guides compared to rigid guides, and specific design aspects for consideration when using rope guides. However, it is primarily intended to provide the technical information required to ensure good engineering of shafts where rope guided hoisting is the chosen solution.

This document does not cover matters of operational safety.

PDF Catalog

PDF Pages	PDF Title
2	National foreword
7	Foreword
8	Introduction
9	1 Scope 2 Normative references 3 Terms and definitions
12	4 Symbols
16	5 Materials 6 Disturbing actions 6.1 Coriolis force 6.2 Aerodynamic loads 6.2.1 Steady state
17	6.2.2 Buffeting
18	6.2.3 Air density 6.3 Rope torque 6.3.1 Head rope torque 6.3.2 Tail rope torque
19	6.3.3 Torque applied by multiple ropes 6.4 Eccentric conveyance loading 6.5 Winder emergency braking
20	6.6 Thermal actions on headframe 6.7 Wind load on conveyances 7 Restoring forces 7.1 Rope guide tension 7.2 Rope guide stiffness 7.2.1 Stiffness of rope guides 7.2.2 Stiffness of head and tail ropes
22	8 Conveyance trajectory 8.1 Simulation of conveyance behaviour 8.2 Combination of actions
23	9 Design procedure 9.1 Function of rope guides 9.2 Risk assessment 9.3 General design procedure 9.4 Simple design procedure 9.4.1 Limits on parameters
24	9.4.2 Design requirements 9.5 Comprehensive design procedure 10 Minimum clearances 10.1 Design clearances 10.2 Dynamic displacement envelope
25	10.3 Reduced dynamic clearances 10.4 Use of rubbing ropes 11 Construction and installation tolerances 11.1 Shaft vertical cylinder diameter 11.2 Tolerance of associated structures
26	11.3 Tolerance on rope guide tension 11.4 Commissioning 11.4.1 Commissioning procedure 11.4.2 Components of the commissioning procedure 12 Other design considerations 12.1 General 12.2 Loading and unloading of conveyances
27	12.3 Accessing intermediate levels 12.4 Number of rope guides 12.5 Rope guide positions 12.6 Rope guide construction 12.7 Rope guide tension and factor of safety 12.8 Rope guide attachments 12.9 Shafts with more than one winder
28	12.10 Design life 12.11 Rope guide tensioning 12.11.1 Gravity tensioning devices 12.11.2 Hydraulic tensioning devices 13 Assessment of existing installations 13.1 General 13.2 Application of measurements
29	13.3 Upgrades or modifications 14 Inspection and maintenance 14.1 Deterioration mechanisms 14.1.1 General 14.1.2 Wear 14.1.3 Corrosion 14.1.4 Mechanical damage 14.1.5 Broken wires
30	14.2 Inspections 14.2.1 General 14.2.2 Inspection intervals 14.2.3 Visual inspection 14.2.4 Non-destructive inspection 14.3 Maintenance actions 14.3.1 Maintenance intervals 14.3.2 Lubrication 14.3.3 Rope turning and rope lifting 14.3.4 Equalisation of hoist rope tensions
31	14.4 Rope guide discard criteria 14.5 Rope guide attachments
32	Annex A (informative) Load combinations and displacement multipliers
34	Annex B (informative) Introduction to Annexes B to F, and basic parameters
43	Annex C (informative) Preliminary aerodynamic coefficients
52	Annex D (informative) Rope torque factors
54	Annex E (informative) Rope guide stiffness and tension
58	Annex F (informative) Approximate calculation of conveyance displacement
61	Bibliography