GB/T 41455-2022Data dictionary for underground pipeline features (English PDF)
地下管线要素数据字典
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
April 15, 2022
Implementation date
April 15, 2022
Scope
GB/T 41455-2022 is the English-translated version of 地下管线要素数据字典.
GB/T 41455-2022 fixes the data dictionary of underground pipeline features. It specifies the structure and the content of the dictionary and what has to be described for each feature - the classes of pipeline and their attributes, the accessories and the structures that go with them - so that the same pipe means the same thing in every system.
It applies to the representation of underground pipeline data, to the building of the databases that hold it and to its sharing and use. City administrations, utilities and survey institutes use it. Issued on 15 April 2022, it applies from the same date.
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Document preview — GB/T 41455-2022
National Standard of the People's Republic of China
- ICS
- 07.040
- Classification
- A 75
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Data dictionary structure and content
- 5 Data dictionary description content
- Appendix A (Informative) Index Table 5 of Catalogue of Underground Pipeline Elements
- Appendix B (normative) Contents of data dictionary of underground pipeline point element
- Appendix C (normative) Contents of data dictionary of underground pipeline elements
- Appendix D (normative) Contents of data dictionary of underground pipeline surface elements
- Appendix E (Informative) Notes on Attribute Value Range of Underground Pipeline Elements
- Reference
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.
1 Scope
This document specifies the structure and content of the data dictionary of underground pipeline elements, and the description content of the data dictionary.
This document is suitable for the representation, database construction, sharing and application of underground pipeline data.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated reference documents, Only the edition corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document document.
GB/T 35644 Data Acquisition Procedure for Underground Pipelines
CH/T 1036 Pipeline Element Classification Code and Symbolic Expression
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Underground pipeline
Pipes (ditches, corridors), cables, etc. and ancillary facilities that are laid underground to transmit energy, information and waste waste.
3.2 Underground pipeline feature
A set of abstractions of points, lines, and surfaces that describe the entity of an underground pipeline at a specific scale.
3.3 Feature attribute
feature of the element. [Source: GB/T 17694-2009, B.181]
3.4 Attribute value
Assign a property-specific value. [Source: GB/T 20258.1-2019, 3.4]
4 Data dictionary structure and content
4.1 Overview
The structure of the data dictionary of underground pipeline elements is in the form of a list, and the description content includes element name, element description, element classification code, element Attribute tables, geometric representations and examples, feature relationships.
4.2 Element name
The names of underground pipeline elements shall be implemented in accordance with the provisions of GB/T 35644.The expansion of underground pipeline elements should be in accordance with the provisions of CH/T 1036 implement.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 204 pages — is available in the English PDF.
Referenced standards
Normative references
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