Design and Safety Guarantee of Gas Pipeline Renovation in Mountainous Counties

DOI

10.2991/978-94-6239-783-5_7How to use a DOI?

Keywords

mountainous county; sloping terrain; gas pipeline network; bottle-to-pipe renovation; hydraulic optimization; intelligent IoT monitoring

Abstract

Restricted by special conditions such as sloping terrain, broken geology, high-intensity earthquakes and concentrated rainfall in mountainous counties of southwest China, the “bottle-to-pipe” renovation of gas pipeline networks generally faces technical problems including poor laying adaptability, uneven hydraulic distribution, high coupled risk of geological disasters and weak safety control. To solve the above pain points, taking a gas pipeline network renovation project in Yunnan Province as the engineering carrier, this study focuses on the core technologies of hydraulic optimization design and dual-dimensional guarantee of geology and safety for gas pipelines on sloping terrain in mountainous areas. A medium-low pressure graded transmission and distribution system is constructed, a hydraulic calculation model for mountainous pipeline networks is established by introducing topographic height difference correction coefficients, and researches are carried out on the selection of mountain composite pipes, composite laying of sloping pipelines, precise remediation of hidden dangers and intelligent safety control based on IoT perception. The academic contribution of this study lies in constructing a terrain-adapted integrated technical system for mountainous gas pipeline renovation, which fills the gap in specialized theoretical and technical research on “bottle-to-pipe” conversion in southwest mountainous sloping counties, and upgrades the standard-guided conventional design to a terrain-coupled academic design method. The study forms an integrated technical system of “hydraulic design-laying process-remediation of hidden dangers-safety control” suitable for mountainous counties, which can effectively offset the impact of topographic height difference on gas supply stability and resist compound disasters such as earthquakes, landslides and rain erosion. Engineering practice shows that the scheme realizes the pipeline renovation of 14,250 bottled gas users, reduces the pressure loss of the pipeline network by 12.3%, achieves 100% coverage of geological disaster prevention and control, eliminates all gas safety hidden dangers, and increases the gas penetration rate from 33% to over 92%. The research results can provide academic basis and engineering reference for the upgrading of gas infrastructure in similar counties in mountainous areas of southwest China.

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  - Design and Safety Guarantee of Gas Pipeline Renovation in Mountainous Counties
BT  - Proceedings of the 2026 2nd International Conference on Resilient City and Safety Engineering (ICRCSE 2026)
PB  - Atlantis Press
SP  - 42
EP  - 53
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-783-5_7
DO  - 10.2991/978-94-6239-783-5_7
ID  - Li2026
ER  -