AS 4799-2000

Installation of underground utility services and pipelines within railway boundaries

Standards Australia

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1 - AS 4799-2000 INSTALLATION OF UNDERGROUND UTILITY SERVICES AND PIPELINES WITHIN RAILWAY BOUNDARIES
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 APPLICATION
7 - 1.3 REFERENCED DOCUMENTS
8 - 1.4 DEFINITIONS
8 - 1.4.1 Administrative definitions
9 - 1.4.2 Technical definitions
10 - SECTION 2 PROJECT DOCUMENTATION
10 - 2.1 SCOPE OF SECTION
10 - 2.2 GENERAL
10 - 2.3 PLANS AND INFORMATION
10 - 2.3.1 General
10 - 2.3.2 Plans
11 - 2.3.3 Information
13 - SECTION 3 GENERAL REQUIREMENTS FOR SERVICES AND PIPELINES
13 - 3.1 SCOPE OF SECTION
13 - 3.2 LOCATION OF SERVICES AND PIPELINES
13 - 3.2.1 General
13 - 3.2.2 Installations across tracks
13 - 3.2.3 Installations along reserve
13 - 3.2.4 Clearance from railway facilities
13 - 3.2.5 Pits and access chambers
14 - 3.2.6 Separation
14 - 3.2.7 Corporation’s drainage
14 - 3.3 DESIGN OF ENCASING PIPES AND NON-ENCASED CARRIER PIPES
14 - 3.3.1 General
14 - 3.3.2 Design parameters
14 - 3.3.3 Design loads
14 - 3.3.4 Pipe materials
14 - 3.4 PROTECTION AGAINST ELECTROLYSIS, CORROSION AND INDUCED CURRENTS
14 - 3.4.1 General
15 - 3.4.2 Electric traction areas
15 - 3.5 METHOD OF INSTALLATION
15 - 3.5.1 Boring
15 - 3.5.2 Other methods of construction
15 - 3.6 BORING AND JACKING OF PIPES UNDER TRACKS
15 - 3.6.1 Boring
15 - 3.6.2 Jacking
16 - 3.7 TRENCHING AND TEMPORARY TUNNELLING UNDER TRACKS
16 - 3.7.1 Shoring
16 - 3.7.2 Depth
16 - 3.7.3 Temporary track supports
16 - 3.8 DISPOSAL OF EXCAVATED MATERIAL
16 - 3.8.1 General
16 - 3.8.2 Deposition of spoil
16 - 3.8.3 Protection of ballast
16 - 3.9 BACKFILLING OF EXCAVATIONS
16 - 3.9.1 Open excavations
16 - 3.9.2 Temporary tunnels
16 - 3.9.3 Boreholes
16 - 3.9.4 Reinstatement
17 - 3.10 MARKERS
17 - 3.10.1 General
17 - 3.10.2 Location
17 - 3.10.3 Requirements
17 - 3.10.4 Orientation
17 - 3.10.5 Wording
17 - 3.11 RENEWAL OR REPLACEMENT OF SERVICE OR PIPELINE
17 - 3.12 CHANGE OF OPERATING CONDITIONS
18 - 3.13 CESSATION OF USE
18 - 3.14 WORK AS EXECUTED
18 - 3.15 WORKS OF THE CORPORATION
19 - SECTION 4 REQUIREMENTS FOR PIPELINES CARRYING NON-FLAMMABLE SUBSTANCES
19 - 4.1 SCOPE OF SECTION
19 - 4.2 GENERAL
19 - 4.2.1 Installation
19 - 4.2.2 Depth of pipes
19 - 4.2.3 End walls and aprons
19 - 4.2.4 Open channels
19 - 4.2.5 Markers
19 - 4.3 PRESSURE PIPELINES UNDER TRACKS
19 - 4.3.1 Encasing
19 - 4.3.2 Size of encasing pipe
21 - 4.4 NON-PRESSURE PIPELINES
21 - 4.4.1 Materials
21 - 4.4.2 Joints
22 - SECTION 5 REQUIREMENTS FOR PIPELINES CARRYING COMBUSTIBLE LIQUIDS AND FLAMMABLE FLUIDS
22 - 5.1 SCOPE OF SECTION
22 - 5.2 DESIGN REQUIREMENTS
22 - 5.2.1 General
22 - 5.2.2 Depth of pipe
22 - 5.2.3 Encasing pipe
24 - 5.2.4 Protection of steel carrier pipe and encasing pipe
24 - 5.2.5 Markers
24 - 5.3 CONSTRUCTION, INSPECTION, TESTING AND COMMISSIONING
24 - 5.4 VALVE LOCATIONS
24 - 5.5 COMPRESSOR STATIONS
24 - 5.6 FLARE POINTS
26 - SECTION 6 REQUIREMENTS FOR SERVICES
26 - 6.1 SCOPE OF SECTION
26 - 6.2 GENERAL
26 - 6.3 COMMUNICATION AND CATHODIC PROTECTION CABLES
26 - 6.3.1 Depth of pipes or conduits
26 - 6.3.2 Markers
26 - 6.3.3 Design of pipes or conduits
26 - 6.3.4 Renewal or replacement
26 - 6.4 POWER CABLES (HIGH AND LOW VOLTAGE)
26 - 6.4.1 General
26 - 6.4.2 Depth of installation
30 - APPENDIX A - PIPE SELECTION
30 - A1 GENERAL
30 - A2 AVERAGE DESIGN LIVE LOAD
30 - A3 CALCULATION OF DESIGN LIVE LOAD
32 - A4 RIGID PIPE
32 - A5 FLEXIBLE PIPE

Abstract

Specifies the requirements for the installation, use and maintenance of utility services and pipelines within railway boundaries.

Scope

The Standard sets out the technical requirements for the installation, use and maintenance of services such as communication, high-voltage and low-voltage electric power cables and pipelines carrying combustible liquids, flammable fluids and non-flammable substances laid under railway track or elsewhere, below ground, and within railway boundaries.
Requirements for pipelines carrying toxic or corrosive substances, or combustible solids, are not included in this Standard.
NOTES:
1 The services or pipelines to which this Standard applies should be designed, constructed, tested, and operated under some form of statutory authority licence, standard or regulation. This Standard does not supersede or take precedence over the requirements of any statute or regulation.
2 Work should not commence until the proposal has been approved by the Corporation and other relevant authority requirements have been specified.
3 The services or pipelines should be registered with one-call or dial before you dig services where available for the benefit of members of the public seeking the location of buried assets prior to excavation.