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GB/T 41447-2022: Technical specification for three-dimensional modeling of urban underground space
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Technical specification for three-dimensional modeling of urban underground space
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GB/T 41447-2022
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Basic data | Standard ID | GB/T 41447-2022 (GB/T41447-2022) | | Description (Translated English) | Technical specification for three-dimensional modeling of urban underground space | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A75 | | Word Count Estimation | 19,159 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41447-2022: Technical specification for three-dimensional modeling of urban underground space
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Technical specification for three-dimensional modeling of urban underground space
ICS 07.040
CCSA75
National Standards of People's Republic of China
Technical specification for 3D modeling of urban underground space
Published on 2022-04-15
2022-04-15 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 2
5 Basic requirements 2
5.1 Space-time benchmark 2
5.2 Model Classification 2
5.3 Model classification 3
5.4 Quality Requirements 3
6 Modeling process 4
6.1 Requirements Analysis 4
6.2 Technical Design 4
6.3 Data acquisition 4
6.4 Geometric Modeling 4
6.5 Attribute Association 4
6.6 Texture Mapping 5
6.7 Model Integration 5
6.8 Quality Inspection 5
6.9 Submission of results5
7 Modeling methods 5
7.1 Classification of Modeling Methods 5
7.2 Modeling based on mapping data 6
7.2.1 Modeling based on 3D point cloud data 6
7.2.2 Modeling based on other mapping data 6
7.3 Modeling based on design and construction data 6
7.3.1 Modeling based on engineering drawings 6
7.3.2 Modeling based on BIM data 6
7.4 Modeling based on geological survey data 7
7.4.1 Modelling based on geological borehole data 7
7.4.2 Modeling based on geological profile data 7
7.4.3 Modeling based on geological plane data 7
7.4.4 Modeling based on multi-source geological data 7
8 Modeling underground buildings 8
8.1 General requirements8
8.2 Modeling Method Selection 8
8.3 3D Directed Bounding Box Construction 8
8.4 External Surface Model Construction 8
8.5 Inner Surface Model Construction 8
8.6 Functional Space Model Construction 8
8.7 Component Model Construction 9
9 Modelling of underground pipelines 9
9.1 General requirements9
9.2 Modeling Method Selection 9
9.3 3D Directed Bounding Box Construction 9
9.4 Construction of pipeline surface model 9
9.5 Pipe point notation construction 10
9.6 Pipe point model construction 10
10 Comprehensive pipe gallery modeling 10
10.1 General requirements 10
10.2 Modeling method selection 10
10.3 3D Directed Bounding Box Construction 10
10.4 External Surface Model Construction 10
10.5 Modelling of inner surfaces 10
10.6 Functional Space Model Construction 10
10.7 Component Model Construction 10
11 Modeling of underground transportation facilities 11
11.1 General requirements 11
11.2 Modeling Method Selection 11
11.3 3D Directed Bounding Box Construction 11
11.4 Modeling of the outer surface 11
11.5 Modelling of inner surfaces 11
11.6 Functional Space Model Construction 11
11.7 Component Model Construction 11
12 Modeling of surrounding geological bodies 11
12.1 General requirements 11
12.2 Modeling Method Selection 12
12.3 Surface Model Construction 12
Appendix A (normative) Basic content of model metadata 13
Appendix B (informative) Basic attribute information of surrounding geological bodies 14
Reference 15
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.
Please note that some content of this document may be patented. The issuing agency of this document assumes no 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 Geographic Information Standardization Technical Committee (SAC/TC230).
This document is drafted by. Construction Comprehensive Survey Research and Design Institute Co., Ltd., National Basic Geographic Information Center, Interstellar Space (Tianjin) Section
Technology Development Co., Ltd., Nanjing Normal University, Shanghai Bokun Information Technology Co., Ltd., Ningbo Institute of Surveying, Mapping and Remote Sensing Technology, Guangzhou City
Municipal Planning, Survey and Design Research Institute, Beijing Siweiyiyou Information Technology Co., Ltd., Nanjing Ubiquitous Geographic Information Industry Research Institute Co., Ltd.,
Beijing Huatai Tianyu Technology Co., Ltd., Beijing New Technology Application Research Institute Co., Ltd., Tongchuang Digital Space (Beijing) Co., Ltd.
The main drafters of this document. Wang Dan, Ren Xiaoqiang, Zhang Qiuyi, Jiang Yifang, Lu Guonian, Meng Yongfei, Jiang Xin, Wang Fenqi, Zhou Liangchen, Lin Hong,
Mao Zhengke, Xu Jianxuan, Zheng Yong, Zhai Zhengang, Chen Jianjun.
Technical specification for 3D modeling of urban underground space
1 Scope
This document specifies the basic requirements, modeling process, modeling methods, and underground buildings, underground pipelines,
Requirements for the modeling of comprehensive pipe corridors, underground transportation facilities and surrounding geological bodies.
This document is suitable for technical design, model construction and quality inspection of 3D modeling of urban underground space.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 12328 Comprehensive Engineering Geological Map Legend and Color Scale
GB/T 18316 Quality inspection and acceptance of digital surveying and mapping results
GB/T 28590 Classification and Code of Urban Underground Space Facilities
GB/T 35636 Specification for Surveying and Mapping of Urban Underground Space
GB/T 51301 Building Information Modeling Design Delivery Standard
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
In order to meet the needs of human production and life, the space that can be developed, constructed and utilized below the urban surface.
Note. It usually includes artificial facilities such as underground buildings, underground pipelines, integrated pipe corridors and underground transportation facilities and their surrounding geological bodies.
3.2
three-dimensional modeling
Based on surveying and mapping data, design and construction data, and geological survey data, express the objects of urban underground space artificial facilities and their surrounding geological bodies
The process of semantic, spatial location, geometric morphology, texture features and attribute information.
3.3
Underground space buildings, structures and their ancillary facilities except for underground transportation facilities, integrated pipe gallery and underground pipelines.
[Source. GB/T 35636-2017, 3.2]
3.4
underground pipeline
Pipes, trenches, pipe galleries, cables and their ancillary facilities that are laid underground for the transmission of energy, information, materials and waste discharge.
[Source. GB/T 35636-2017, 3.5, with modifications]
3.5
Integrated pipe gallery utilitytunnel
Special tunnels and their ancillary facilities built underground and used for laying two or more types of underground pipelines.
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