更新时间：2020-09-25 15:31:12
封面
版权信息
Announcement of Ministry of Housing and Urban-Rural Development of the People’s Republic of China
Foreword
1 General Provisions
2 Terms
3 Basic Requirement
4 Surveying and ROW Clearance
4.1 General Provision
4.2 Surveying
4.3 Right-of-Way Clearance
5 Material and Pipeline Accessory Acceptance
5.1 General Provisions
5.2 Loading，Unloading and Transportation of Anticorrosion Pipe
5.3 Acceptance and storage
6 Stringing
7 Pipeline Trench
7.1 General Provision
7.2 Geometric Size of Pipeline Trench
7.3 Pipeline Trench Excavation
7.4 Pipeline Trench Accepetance
8 Pipeline Welding and Acceptance
8.1 General
8.2 Weather Conditions
8.3 Preparation for Welding
8.4 Alignment
8.5 Preheat Temperature and Interpass Temperature
8.6 Remove the Lineup Clamp
8.7 Welding
8.8 Repair and Removal of Defects
8.9 Tie-In Welding
8.10 Joint Identification
8.11 Acceptance Standards of Welds
9 Pipeline Lowering-In and Trench Backfilling
9.1 Pipeline Lowering-In
9.2 Pipeline Trench Backfilling
10 Anticorrosion，Repairing and Joint Coating of Pipeline
10.1 General Provision
10.2 Pipeline Anticorrosion
10.3 Repairing and Joint Coating for Anticorrosion Pipeline
11 Crossings
12 Pipeline Pigging，Gauging and Hydrotesting
12.1 General Provision
12.2 Pipeline Pigging and Gauging
12.3 Pipeline Hydrotest
13 Pipeline Auxiliary Engineering
13.1 Makers，Posts and Piles Burial
13.2 Erosion Protection
13.3 Cathodic Protection
14 Safety and Environment
15 Engineering Handover and Acceptance
Appendix A Qualification of Welding Procedures
A.1 General
A.2 V-notch Charpy Impact Toughness Test
A.3 Macro metallographic and hardness tests
A.4 Reinspection
Appendix B Inspection Record for Quality of Construction
