Research on Relocation Protection of Operating Gas Pipelines and Collaborative Design of Pipeline Integration in Urban Sub-arterial Road Reconstruction

DOI

10.2991/978-94-6239-783-5_20How to use a DOI?

Keywords

urban sub-arterial road reconstruction; operating gas pipeline; insufficient covering thickness; cover culvert protection; narrow red line

Abstract

The widening reconstruction of urban sub-arterial roads in old urban areas generally faces technical difficulties such as narrow red line space, dense existing pipelines, substandard covering thickness of operating gas pipelines, and spatial conflicts among multi-disciplinary pipelines. Taking the 31.5m narrow red line sub-arterial road reconstruction project of Yan’an Road in Huangshi City as an example, focusing on the core problems including insufficient covering thickness of gas pipelines under motorways, pipeline failure easily caused by construction-vehicle coupling loads, and disordered layout of multiple pipelines, this paper carries out studies on the stress mechanism analysis of buried gas pipelines, the design of reinforced concrete cover culvert protection structure, and the collaborative layout optimization of multiple pipelines under narrow red line constraints. The stress checking of pipelines is completed based on the soil additional stress theory to clarify the inducement of pipeline failure. The size and structural parameters of the cover culvert are optimized according to the stress results, forming a non-deepening buried protection scheme suitable for operating pipelines. Combined with the reconstructed road section, a comprehensive pipeline layout method of “horizontal side-by-side arrangement, vertical stratification, and node collaboration” is constructed to realize the orderly layout of gas pipelines, power, communication, water supply and drainage pipelines. Engineering practice shows that the optimized cover culvert structure can reduce the pipe wall stress of gas pipelines by 12.9%, the comprehensive pipeline layout meets all the standard clear distance requirements, the project construction cost is reduced by 12.3%, and the road service level is upgraded from Grade E to Grade B. The research results can provide direct engineering reference for gas pipeline protection and comprehensive pipeline design in the reconstruction of similar narrow red line urban sub-arterial roads.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Yangyang Li
PY  - 2026
DA  - 2026/09/30
TI  - Research on Relocation Protection of Operating Gas Pipelines and Collaborative Design of Pipeline Integration in Urban Sub-arterial Road Reconstruction
BT  - Proceedings of the 2026 2nd International Conference on Resilient City and Safety Engineering (ICRCSE 2026)
PB  - Atlantis Press
SP  - 193
EP  - 204
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-783-5_20
DO  - 10.2991/978-94-6239-783-5_20
ID  - Li2026
ER  -