AS/NZS 2041.2:2011

1 - AS/NZS 2041.2:2011 BURIED CORRUGATED METAL STRUCTURES - INSTALLATION
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 APPLICATION
6 - 1.3 NORMATIVE REFERENCES
7 - 1.4 DEFINITIONS
7 - 1.4.1 Bedding
7 - 1.4.2 Camber
7 - 1.4.3 Compaction
7 - 1.4.4 Corrugation
8 - 1.4.5 Cover
8 - 1.4.6 Embankment
8 - 1.4.7 Fill, embankment
8 - 1.4.8 Fill, flowable
8 - 1.4.9 Fill, select
8 - 1.4.10 Foundation
8 - 1.4.11 Haunch
8 - 1.4.12 Protective coating
8 - 1.4.13 Skew number
8 - 1.4.14 Spring line
8 - 1.4.15 Trench condition
9 - 1.5 NOTATIONS
10 - 1.6 MARKING OF STRUCTURES
11 - SECTION 2 INSTALLATION
11 - 2.1 GENERAL
11 - 2.2 CONFORMANCE TO THE DESIGN
12 - 2.3 METHOD OF INSTALLATION
12 - 2.4 STRUCTURAL BACKFILL
12 - 2.4.1 Select fill
13 - 2.4.2 Flowable and cement modified select fill
13 - 2.4.3 Extent of structural backfill
16 - 2.4.4 Installation in trench
16 - 2.4.5 Installation in embankment
16 - 2.5 MINIMUM SPACING BETWEEN ADJACENT MULTIPLE STRUCTURES
18 - 2.6 FOUNDATION AND BEDDING
18 - 2.6.1 Foundation
20 - 2.6.2 Camber
20 - 2.6.3 Bedding
21 - 2.6.4 Arches
21 - 2.6.5 Haunch zones for pipe-arches and underpasses
21 - 2.6.6 Transition zones for changing foundation
22 - 2.7 RECEIVING AND HANDLING MATERIALS
22 - 2.8 REPAIR OF DEFECTS AND COATINGS
22 - 2.8.1 General
22 - 2.8.2 Assessment and repair of damaged zinc coatings
23 - 2.8.3 Assessment and repair of damaged aluminized coatings
23 - 2.8.4 Assessment and repair of factory-applied protective coatings
23 - 2.9 ASSEMBLY
23 - 2.9.1 Assembly instructions
23 - 2.9.2 Handling
23 - 2.9.3 Helically formed pipe
23 - 2.9.4 Bolted plate structures
24 - 2.9.5 Bolts and bolt torque for bolted plate structures
24 - 2.10 PLACEMENT
25 - 2.11 OTHER COMPONENTS OF THE STRUCTURE
25 - 2.12 BACKFILLING
25 - 2.12.1 General
25 - 2.12.2 Select fill
25 - 2.12.3 Flowable and cement-modified select fill
25 - 2.12.4 Placement
28 - 2.12.5 Compaction of select fill
28 - 2.13 MINIMUM COVER FOR CONSTRUCTION EQUIPMENT AND ABNORMAL LOADS
29 - 2.14 SHAPE TOLERANCES
29 - 2.14.1 Monitoring of shape during placement of select fill
29 - 2.14.2 Helically formed pipes (final shape)
29 - 2.14.3 Bolted plate structures (final shape)
30 - SECTION 3 END TREATMENT AND INVERT LINING
30 - 3.1 GENERAL
30 - 3.2 END TREATMENT
30 - 3.3 INVERT LINING
31 - 3.4 ALUMINIUM PLATE STRUCTURES
32 - APPENDIX A - GUIDELINES FOR DESIGN INFORMATION FOR SUPPLY AND INSTALLATION
32 - A1 GENERAL
32 - A2 DESIGN INFORMATION TO BE SUPPLIED TO THE MANUFACTURER AND INSTALLER
33 - A3 INFORMATION TO BE SUPPLIED BY THE MANUFACTURER
36 - APPENDIX B - FLOWABLE FILL
36 - B1 GENERAL
36 - B2 MIX PROPORTIONS
36 - B3 MIX FLOWABILITY
37 - B4 GRANULAR MATERIAL GRADING
37 - B5 STRENGTH
37 - B6 PLACEMENT
38 - B7 DURABILITY
39 - BIBLIOGRAPHY

Sets out requirements for the installation of buried corrugated metal structures. Requirements include type and compaction of fill and stiffness considerations for handling. This Standard is for use with AS/NZS2041.1 and other parts in the AS/NZS2041 series.

This Standard specifies requirements for the installation of buried corrugated metal structures intended for use in stormwater drainage and as access tunnels, to support or accommodate roadway and railway and other loadings.Buried corrugated metal structures are flexible members that rely on soil-structure interaction. Correct installation is essential to performance. Adequate compaction of the specified fill material is a requisite for meeting the design criteria for strength.NOTE: Incorrect backfilling procedure may result in collapse of the culvert.

Originated, in part, as AS 1762-1984, AS 3703.2-1989 and AS/NZS 2041:1998.
Revised and redesignated AS/NZS 2041.2:2011.