T/CAS 427-2020 Techniques for Inspection and Surveying of Underground Pipelines and Completion Surveying Manual
T/CAS 427-2020 Techniques for Inspection and Surveying of Underground Pipelines and Completion Surveying Manual
Basic Information
Scope
Scope: This regulation stipulates the basic requirements for underground pipeline verification and completion measurements, underground pipeline point measurements, underground pipeline verification measurements, underground pipeline completion measurements, comprehensive pipe gallery completion measurements, data processing, quality inspection of results, and submission of results. This regulation applies to underground pipeline verification and completion measurements. Main technical content: 1. Scope: This regulation stipulates the basic requirements for underground pipeline verification and completion measurements, underground pipeline point measurements, underground pipeline verification measurements, underground pipeline completion measurements, comprehensive pipe gallery completion measurements, data processing, quality inspection of results, and submission of results. This regulation applies to underground pipeline verification and completion measurements. 2. Normative references: The following documents are essential for the application of this document. For all referenced documents with a date, only the version dated with the specified date applies to this document. For all referenced documents without a date, the latest version (including all amendments) applies to this document. GB/T 20257.1 National Basic Scale Map Symbols Part 1: 1:500 1:1000 1:2000 Topographic Map Symbols GB/T 24356 Quality Inspection and Acceptance of Surveying and Mapping Results GB/T 24422 Requirements for Durability and Longevity of Information and Documentary Archives Papers CJJ 61 Technical Regulations for Urban Underground Pipeline Detection CJJ/T 8 Urban Surveying Standards CJJ/T 73 Technical Standards for Satellite Positioning Urban Surveying CH/T 1033 Technical Regulations for Quality Inspection of Pipeline Measurement Results CH/T 2009 Technical Specifications for Real-Time Kinematic (RTK) Global Positioning System (GPS) Surveying CH/Z 3017 Technical Regulations for Terrest