1.0.1 This code is formulated with a view to intensify the construction management, specify construction technology, unify construction quality inspection and acceptance standard as well as ensure work quality for water supply and water drainage (hereinafter referred to as "water and sewerage") pipeline works.
1.0.2 This Code is applicable to construction, extension and reconstruction for the construction and acceptance of outdoor water and sewerage pipeline works in urban public facility and industrial enterprise; but not applicable to construction and acceptance of water and sewerage pipeline with special requirement in industrial enterprise.
1.0.3 Variety, specification and property of raw material, semi-finished product and finished product for water and sewerage pipeline works must comply with relevant standards and design requirement of the nation; products contacting the drinking water must comply with relevant sanitary requirements. Eliminated and unallowable products public proclaimed by the nation must not be used.
1.0.4 For the construction and acceptance of water and sewerage pipeline works, not only the requirements stipulated in this Code, but also those in the current relevant ones of the nation shall be complied with.
Foreword II 1. General provisions 2. Terminologies 3. Fundamentals 3.1 Fundamentals for construction 3.2 Fundamentals for the quality acceptance 4. Earthwork and foundation treatment 4.1 General provisions 4.2 Construction dewatering and drainage 4.3 Trench excavation and support 4.4 Foundation treatment 4.5 Trench backfill 4.6 Acceptance quality level 5. Major structures for pipeline with trench installation 5.1 General requirements 5.2 Pipeline foundation 5.3 Steel pipe installation 5.4 Anticorrosion inside and outside the steel pipe 5.5 Ductile cast iron pipe installation 5.6 Installation for reinforced concrete pipe and pre-stressed (self-stressing) concrete pipe 5.7 Installation for the prestressed steel cylinder concrete pipe 5.8 Installation of glass reinforced plastic pipe 5.9 Installation for UPVC, PE and their clad pipe 5.10 Acceptance quality level 6. The major structure for trenchless installed pipeline 6.1 General provisions 6.2 Working shaft 6.3 Pipe-jacking 6.4 Shield 6.5 Shallow undercutting method 6.6 Directional drill and tamping pipeline 6.7 Quality acceptance standard 7. Major structures of immersed pipeline and bridging pipeline 7.1 General provisions 7.2 Immersed pipeline 7.3 Bridging pipeline 7.4 Acceptance quality level 8. Subsidiary structures of pipeline 8.1 General provisions 8.2 Shaft room 8.3 Rest pier 8.4 Storm-water overflows 8.5 Acceptance quality level 9. Function test of pipeline 9.1 General provisions 9.2 Water pressure test for pressure pipeline 9.3 Water obturation test for non-pressure pipeline 9.4 Pneumatic pressure test for non-pressure pipelines 9.5 Washing and sterilizing of feed-water pipelines Annex A Subitems, Branch and Unit Work Classification of Water and Sewerage Pipeline Works Annex B Quality Inspection Acceptance Record of Subitems, Branch and Unit Works Annex C Pump-in Method Test Annex D Water Obturation Method Test Annex E Pneumatic Method Test Annex F Measurement and Evaluation Method of Concrete Structure Non-pressure Pipeline Water Percolating Annex G Evaluation Method on Appearance Quality Flaw of the Reinforced Concrete Structure Annex H Polyurethane ( PU) Coating Explanation of Wording in this code
1.0.1 This code is formulated with a view to intensify the construction management, specify construction technology, unify construction quality inspection and acceptance standard as well as ensure work quality for water supply and water drainage (hereinafter referred to as "water and sewerage") pipeline works.
1.0.2 This Code is applicable to construction, extension and reconstruction for the construction and acceptance of outdoor water and sewerage pipeline works in urban public facility and industrial enterprise; but not applicable to construction and acceptance of water and sewerage pipeline with special requirement in industrial enterprise.
1.0.3 Variety, specification and property of raw material, semi-finished product and finished product for water and sewerage pipeline works must comply with relevant standards and design requirement of the nation; products contacting the drinking water must comply with relevant sanitary requirements. Eliminated and unallowable products public proclaimed by the nation must not be used.
1.0.4 For the construction and acceptance of water and sewerage pipeline works, not only the requirements stipulated in this Code, but also those in the current relevant ones of the nation shall be complied with.
Contents of GB 50268-2008
Foreword II
1. General provisions
2. Terminologies
3. Fundamentals
3.1 Fundamentals for construction
3.2 Fundamentals for the quality acceptance
4. Earthwork and foundation treatment
4.1 General provisions
4.2 Construction dewatering and drainage
4.3 Trench excavation and support
4.4 Foundation treatment
4.5 Trench backfill
4.6 Acceptance quality level
5. Major structures for pipeline with trench installation
5.1 General requirements
5.2 Pipeline foundation
5.3 Steel pipe installation
5.4 Anticorrosion inside and outside the steel pipe
5.5 Ductile cast iron pipe installation
5.6 Installation for reinforced concrete pipe and pre-stressed (self-stressing) concrete pipe
5.7 Installation for the prestressed steel cylinder concrete pipe
5.8 Installation of glass reinforced plastic pipe
5.9 Installation for UPVC, PE and their clad pipe
5.10 Acceptance quality level
6. The major structure for trenchless installed pipeline
6.1 General provisions
6.2 Working shaft
6.3 Pipe-jacking
6.4 Shield
6.5 Shallow undercutting method
6.6 Directional drill and tamping pipeline
6.7 Quality acceptance standard
7. Major structures of immersed pipeline and bridging pipeline
7.1 General provisions
7.2 Immersed pipeline
7.3 Bridging pipeline
7.4 Acceptance quality level
8. Subsidiary structures of pipeline
8.1 General provisions
8.2 Shaft room
8.3 Rest pier
8.4 Storm-water overflows
8.5 Acceptance quality level
9. Function test of pipeline
9.1 General provisions
9.2 Water pressure test for pressure pipeline
9.3 Water obturation test for non-pressure pipeline
9.4 Pneumatic pressure test for non-pressure pipelines
9.5 Washing and sterilizing of feed-water pipelines
Annex A Subitems, Branch and Unit Work Classification of Water and Sewerage Pipeline Works
Annex B Quality Inspection Acceptance Record of Subitems, Branch and Unit Works
Annex C Pump-in Method Test
Annex D Water Obturation Method Test
Annex E Pneumatic Method Test
Annex F Measurement and Evaluation Method of Concrete Structure Non-pressure Pipeline Water Percolating
Annex G Evaluation Method on Appearance Quality Flaw of the Reinforced Concrete Structure
Annex H Polyurethane ( PU) Coating
Explanation of Wording in this code
