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GB/T 45668-2025Technical requirements for underground space information system construction (English PDF)

地下空间信息系统建设技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 30, 2025

Implementation date

September 1, 2025

Scope

GB/T 45668-2025 is the English-translated version of 地下空间信息系统建设技术要求.

GB/T 45668-2025 is the Chinese national standard covering the information system that records a city's underground space — the space-time reference and the data requirements, the system framework and the functions it has to provide, the classification and naming of underground space data, the database design and construction, the connection to the other municipal information systems, the trial operation and acceptance testing, and the security and confidentiality management that data on what lies under a city needs. It calls up the pipeline feature codes of GB/T 45666-2025 and the urban base database rules of GB/T 21740-2025. First edition, under the Ministry of Natural Resources. In force from 1 September 2025. Issued on 30 May 2025, it has been in force since 1 September 2025.

Document preview — GB/T 45668-2025

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

PrefaceIII
1 Scope1
2 Normative references1
3 Terms, definitions and abbreviations2
3.1 Terms and Definitions2
3.2 Abbreviations2
4 General Requirements2
4.1 Construction Process2
4.2 Construction Content3
4.3 Space-time benchmark3
4.4 Data requirements3
4.5 Other requirements3
5 System Design3
5.1 General requirements3
5.2 Design Process3
5.3 System Framework3
5.4 Functional Requirements5
5.5 Database Design6
5.6 Connection with other information systems6
5.7 Operating Environment Requirements6
6 Data organization and database construction7
6.1 General requirements7
6.2 Data Preparation and Preprocessing7
6.3 Data Processing7
6.4 Data storage9
7 System Implementation9
7.1 General requirements9
7.2 Software Development1010
7.3 Establishing the operating environment10
7.4 System Integration and Testing10
8 System Acceptance10
8.1 General requirements10
8.2 Trial operation11
8.3 Acceptance Testing11
8.4 Technical Achievements11
8.5 Acceptance Implementation11
9 System Operation and Maintenance11
9.1 General requirements11
9.2 Daily Operation Management11
9.3 Security and Confidentiality Management11
9.4 Data backup and update12
9.5 System Upgrade and Maintenance12
Appendix A (Normative) Classification and naming of underground space data13
Appendix B (Informative) Data Diagram Symbols for Underground Space Facilities17
Reference20

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 for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is proposed by the Ministry of Natural Resources of the People's Republic of China.

This document is under the jurisdiction of the National Technical Committee for Geographic Information Standardization (SAC/TC230).

This document was drafted by: Zhengyuan Geographic Information Group Co., Ltd., Nanjing Institute of Surveying and Mapping Co., Ltd., Construction Comprehensive Hezhou Survey and Design Institute Co., Ltd., Nanjing Normal University, Kunming Urban Underground Space Planning and Management Office, Guangzhou Urban Planning and Surveying Institute Co., Ltd.

Xiamen Jingtu Information Technology Co., Ltd., Nanjing Civil Air Defense Office, Shanghai Survey and Design Institute (Group) Co., Ltd.

Co., Ltd., Beijing Institute of Surveying and Mapping, Underground Pipeline Survey and Engineering Institute of the Ministry of Natural Resources, Sichuan Guoce Information Technology Co., Ltd., Beijing Municipal Institute of New Technology Application, Chengdu Institute of Surveying and Mapping, Jiangsu Map Information Technology Co., Ltd.

The main drafters of this document are: Li Xuejun, Chu Zhengwei, Geng Dan, Zhang Shuliang, Hou Zhiqun, Zhang Pengcheng, Qiao Zhiyong, Feng Bing, Huang Yongjin, Long Jiaheng, Yong Chen, Guanghua Chen, Kehui Liu, Yong Zhang, Jianrong Ju, Zhiqiang Xie, Jie Xu, Liangbo Pan, Wen Zhou, Yong Wang, and Yu Shen.

Technical requirements for the construction of underground space information system

1 Scope

This document specifies the overall requirements for the construction of underground space information systems, as well as system design, data organization and database construction, system implementation, system Technical requirements for acceptance, system operation and maintenance.

This document applies to the design, development, application and operation and maintenance of underground space information systems.

2 Normative references

GB/T 2887

GB/T 8566

GB/T 8567

GB/T 9361

GB/T 9385

GB/T 12328

GB/T 15532

GB/T 18578

GB/T 20158

GB/T 20273

GB/T 21740

GB/T 22239

GB/T 22240

GB/T 28448

GB/T 28449

GB/T 28590

GB/T 33447

GB/T 39786

GB/T 41447

GB/T 42987

GB/T 45666

GB 50174

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 8566 · GB/T 12328 · GB/T 20158 · GB 50174

Editions of GB/T 45668

Edition	Title	Revision	Status
GB/T 45668-2025	Technical requirements for underground space information system construction	current edition	Current

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