Standard
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AS/NZS 3725:2007
[Pending Revision]Design for installation of buried concrete pipes
Specifies methods, and provides data, for calculating the vertical working loads on buried concrete pipes due to the materials covering the pipes and superimposed loads, and for relating the minimum proof test load to the calculated vertical working loads on concrete pipes installed under particular conditions, including that of combined vertical load plus internal pressure.
Published: 23/01/2007
Pages: 38
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Application
2.1 General
2.2 Use of other materials or methods
2.3 Existing structures
3 Referenced documents
4 Definitions
5 Notation
6 Vertical loads on pipes
6.1 Types of loading
6.2 Data required
6.3 Working dead loads due to fill or in situ materials
6.3.1 General
6.3.2 Trench condition
6.3.3 Embankment conditions
6.3.3.1 Positive projection
6.3.3.2 Negative projection
6.3.3.3 Multiple pipes condition
6.3.3.4 Jacked (thrust) or bored pipes condition
6.3.3.5 Settlement ratio
6.4 Working loads due to superimposed dead loads
6.5 Working loads due to superimposed live loads
6.5.1 General
6.5.2 Construction and other equipment loads
6.5.3 Road vehicle loads
6.5.3.1 Calculation
6.5.3.2 Distribution of road traffic loads through fill
6.5.3.2.1 Height of fill above pipe ≥0.4 m
6.5.3.2.2 Height of fill above pipe <0.4 m
6.5.3.2.3 Uniformly distributed loads
6.5.3.3 Highway vehicle loads
6.5.3.4 Working loads due to other road vehicles
6.5.3.4.1 Height of fill above pipe ≥0.4 m
6.5.3.4.2 Height of fill above pipe <0.4 m
6.5.4 Railway loads
6.5.4.1 Calculation
6.5.4.2 Height of fill above pipe ≥1.0 m
6.5.4.3 Height of fill above pipe <1.0 m
6.5.5 Aircraft loads
7 Internal water loads
8 Compaction
9 Pipe support and bedding factors
9.1 General
9.1.1 Pipe supports
9.1.2 Bedding factors
9.2 Support types
9.2.1 Type U support
9.2.2 Type H support
9.2.2.1 General
9.2.2.2 Bed and haunch zones
9.2.3 Type HS support
9.2.3.1 General
9.2.3.2 Side zones
9.3 Bedding factors for dead loads
9.3.1 General
9.3.2 Reduction of bedding factors
9.3.3 Jacked (thrust) or bored pipes
10 Test loads
10.1 General
10.2 Test loads for steel- or fibre-reinforced pipes not subject to internal pressure
10.3 Test load for unreinforced pipes not subject to internal pressure
10.4 Test loads for steel-reinforced pipes subject to internal pressure
Appendix A
A1 General
A2 Mix proportions
A3 Mix flowability
A4 Soil grading
A5 Handling and placement
Appendix B
B1 General
B2 Construction loads
B3 Road vehicle loads
B3.1 Australian requirements
B3.1.1 Main and secondary roads
B3.1.2 Minor roads
B3.2 New Zealand requirements
B3.2.1 Main and secondary roads
B3.2.2 Minor roads
B4 Railway loads
B5 Aircraft loads
Cited references in this standard