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AS 19426.5:2024
[Current]Structures for mine shafts, Part 5: Shaft system structures (ISO 19426-5:2018, MOD)
AS 19426.5:2024 adopts and modifies ISO 19426 5:2018, which specifies the loads, load combinations and design procedures for the design of shaft system structures in both vertical and decline shafts.
Published: 28/03/2024
Pages: 38
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Materials
6 Nominal loads
6.1 Permanent loads
6.1.1 Self-weight
6.1.2 Brow beams and sidewall support structures
6.1.3 Pipe supports
6.1.4 Conveyor supports
6.2 Imposed loads and load effects
6.2.1 General
6.2.2 Guide support structures
6.2.2.1 Fixed guides in vertical shafts in shaft zone A (see annex A)
6.2.2.1.1 Lateral imposed loads (H) and maximum guide bending moment (Mg)
6.2.2.1.2 Vertical loads (Fv)
6.2.2.2 Fixed guides in vertical shafts in shaftzone B (see Annex A)
6.2.2.2.1 Lateral loads (H) and maximum guide bending moment (Mg)
6.2.2.2.2 Vertical loads (FV)
6.2.2.3 Fixed guides in vertical shafts in shaft zones C and D (see Annex A)
6.2.2.3.1 Lateral loads (H) and maximum guide bending moments (Mg)
6.2.2.3.2 Vertical loads (FV)
6.2.2.4 Fixed guides in conveyance loading zones
6.2.2.5 Decline shaft wheel loads
6.2.2.5.1 Conveyance wheel load acting normal to the rail (Wn)
6.2.2.5.2 Lateral conveyance wheel loads (Wl)
6.2.3 Fixed flare guides
6.2.4 Station structures
6.2.4.1 Station footwall structures
6.2.4.2 Platforms
6.2.4.3 Canopy structures
6.2.4.4 Conveyance holding device support
6.2.4.5 Brattice screens, screens and screen supports
6.2.4.6 Guard rails to stairs, landings and platforms
6.2.4.7 Slinging anchorages
6.2.4.8 Station buffers
6.2.5 Rock loading structures
6.2.5.1 Surge and spillage bins
6.2.5.2 Measuring flasks
6.2.5.3 Rock loading station floors
6.2.5.4 Box fronts
6.2.5.5 Skip tipping loads
6.2.6 Operational arresting structures
6.2.7 Station dropsets
6.2.7.1
6.2.7.2
6.2.7.3
6.2.7.4
6.2.7.5
6.2.8 Pipe supports
6.2.9 Rope guide and rubbing rope anchor supports
6.2.10 Brattice walls
6.2.10.1 Vertical loads
6.2.10.2 Ventilation pressure and thermal loads
6.2.11 Strain loading
6.2.11.1 Rock strain
6.2.11.2 Thermal strain
6.2.12 Ladderway loading
6.2.12.1
6.2.12.2
6.2.12.3
6.2.12.4
6.2.13 Conveyance drop test loads
6.2.14 Earthquake loads
6.3 Emergency loads
6.3.1 Emergency arresting structures
6.3.1.1
6.3.1.2
6.3.2 Emergency stopping devices
6.3.3 Pipe supports
6.3.3.1
6.3.3.2
6.3.3.3
6.3.3.4
6.3.4 Spillage winch support and sheave support structures
6.3.5 Brattice walls
6.3.6 Impact load on protective platforms
7 Design procedures
7.1 Design loads
7.2 Design codes
7.3 Design of emergency arresting structures
7.4 Design of emergency stopping device supports
7.5 Special design requirements for shaft steelwork in different shaft zones
7.5.1 Shaft zones
7.5.2 Shaft steelwork within shaft zone A
7.5.3 Shaft steelwork within shaft zone B
7.5.4 Shaft steelwork within shaft zone C
7.5.5 Shaft steelwork within shaft zone D
7.5.5.1
7.5.5.2
7.5.5.3
7.6 Additional limit states
7.6.1 Lateral displacement of conveyance
7.6.2 Fatigue
7.6.3 Rebound velocity ratio
7.6.4 Amplification of loads and load effects
7.7 Provision for wear and corrosion
7.8 Design of protective platforms
8 Construction requirements
8.1 General
8.2 Construction tolerances
Annex A
Annex B
B.1 General
B.2 Vertical shafts
B.3 Decline shafts
Annex C
C.1 General
C.2 Operating conditions
C.2.1 Partial load factors and load combination factors
C.2.2 Load combinations
C.2.3 Fatigue design loads
C.3 Emergency conditions — Load combinations
Annex D
D.1 General
D.2 Determining the height of the bulk material and the dynamic load
D.2.1 Symbols
D.2.2 Required height of the bulk material
D.2.3 Dynamic load on the platform and load assumption for the structural support.
Bibliography
Appendix ZZ
ZZ.1 Scope
ZZ.2 Modifications
Cited references in this standard
[Current]
Timber structures - Determination of characteristic values - Part 5: Mechanical connections
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