Technical system for geological hazard prevention in mountainous areas pipelines and case studies

doi:10.16265/j.cnki.issn1003-3033.2025.S2.0002

Abstract

Abstract:

To address the severe geological disaster risks facing pipelines in mountainous regions of China and overcome the lack of a systematic approach in existing protection technologies, a scientific and systematic technical system for geological disaster prevention along pipelines was developed. By integrating four core technical modules, risk identification, assessment, monitoring and early warning, and engineering mitigation, a comprehensive protection framework based on multi-platform collaboration was established. By taking the pipeline landslide in the Yaolongshan section of Guizhou as a case study, the risk assessment function of this system was validated through a combination of field investigations and finite element numerical simulations. Research indicates that the integrated protection system represents a trend toward multi-technology and multi-tier integration in disaster prevention and control. The results indicate that all failure criterion indices for the landslide are less than 1, indicating no risk of failure. The developed technical system provides a systematic solution for geological disaster prevention in pipeline engineering. The specific data from the Yaolongshan case offer clear scientific support for monitoring, inspection, and engineering mitigation of pipelines in this section.

Key words: geological disaster related to pipeline, protective technology system, risk assessment, monitoring and early warning, failure criterion

CLC Number:

X948

YANG Dashen, XIA Ji, WEI Rongfang, LIANG Dong, HU Yiming, WANG Renchao. Technical system for geological hazard prevention in mountainous areas pipelines and case studies[J]. China Safety Science Journal, 2025, 35(S2): 14-20.

Figures/Tables 7

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管道受力变形区段	有限元模拟值	判据指标	失效判据指标计算值
滑坡区	\|w\|_max=0.044 m	k₁=\|w\|_max/[δ]	0.04<1
滑坡区	\|θ\|_max=10°	k₂=\|θ)\|_max/[θ]	0.4<1
支撑区	σ_max=258.3 MPa	k₃=σ_max/[σ]	0.78<1
	τ_max=19.1 MPa	k₄=τ_max/[τ]	0.1<1
	Δ_max=0.01 m	k₅=Δ/[Δ_max]	0.06<1