An integrated risk assessment methodology based on fuzzy TOPSIS and cloud inference for urban polyethylene gas pipelines

Liang, Xiaobin; Ma, Wenxue; Ren, Junjie; Dang, Wei; Wang, Ke; Nie, Hailiang; Cao, Jian; Tian, Ye

doi:10.1016/j.jclepro.2022.134332

Cited by 17 publications

(3 citation statements)

References 30 publications

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“…Such leaks pose a direct threat to people’s safety and property (Liu et al , 2018). PE gas pipes are usually subjected to aging in environmental stress and soil organic media during their long-term service, leading to degradation in mechanical properties, chemical structure and antiaging performance (Liang et al , 2022). Therefore, it is crucial to investigate the influence of soil organic substances on the aging behavior of PE pipes.…”

Section: Introductionmentioning

confidence: 99%

Study on the impact of soil environment organic substances on the ageing of urban PE gas pipes in service

Li,

Bao,

Lei

et al. 2024

ACMM

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Purpose The service environment of urban polyethylene (PE) pipes has a crucial influence on their long-term safety and performance. Based on the application and structural performance analysis of PE pipe failure cases, this study aims to investigate the impact of organic substances in the soil on the aging behavior of PE pipes by designing organic solutions with different concentrations, which are based on the composition of organic substances in the soil environment, and periodic immersion tests. Design/methodology/approach Soil samples in the vicinity of the failed pipes were analyzed by gas chromatography-mass spectrometry, sensitive organic substances were screened and soaking solutions of different concentrations were designed. After the soaking test, the PE pipe samples were analyzed using differential scanning calorimetry, Fourier-transform infrared spectroscopy and other testing methods. Findings The performance difference between the outer surface and the middle of the cross section of PE pipes highlights the influence of the soil service environment on their aging. Different organic solutions can have varying impacts on the aging behavior of PE pipes when immersed. For instance, when exposed to amine organic solutions, PE pipes may have an increased weight and decreased material yield strength, although there is no reduction in their thermal or oxygen stability. On the contrary, when subjected to ether organic solutions, the surface of PE pipe specimens may be affected, leading to a reduction in material fracture elongation and a decrease in their thermal and oxygen stability. Furthermore, immersion in either amine or ether organic solutions may result in the production of hydroxyl and other aging groups on the surface of the material. Originality/value Understanding the potential impact of organic substances in the soil environment on the aging of PE pipe ensures the long-term performance and safety of urban PE pipe. This research approach will provide valuable insights into improving the durability and reliability of urban PE pipes in soil environments.

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Section: Introductionmentioning

confidence: 99%

Study on the impact of soil environment organic substances on the ageing of urban PE gas pipes in service

Li,

Bao,

Lei

et al. 2024

ACMM

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“…Long-distance oil and gas pipelines have the advantages of high efficiency, low cost, and low energy consumption. They are an extremely economical and efficient transportation method for the transportation of oil, gas, and other resources. , With the continuous rise of socio-economic development, the petroleum industry, and the increasing demand from the population, human society’s consumption of oil, natural gas, and other energy sources has reached unprecedented levels. As a result, an increasing number of oil and gas pipelines have been put into operation. , However, long-distance oil and gas pipelines generally have characteristics such as crossing vast territories, shallow burial depths, complex external environments, and the presence of flammable, explosive, and toxic substances.…”

Section: Introductionmentioning

confidence: 99%

“…They are an extremely economical and efficient transportation method for the transportation of oil, gas, and other resources. 1 , 2 With the continuous rise of socio-economic development, the petroleum industry, and the increasing demand from the population, human society’s consumption of oil, natural gas, and other energy sources has reached unprecedented levels. As a result, an increasing number of oil and gas pipelines have been put into operation.…”

Section: Introductionmentioning

confidence: 99%

Integrated Risk Assessment of Mountainous Long-Distance Oil and Gas Pipelines Based on Multisource Spatial Data

Wang,

Li,

Zhu

et al. 2024

ACS Omega

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Pipeline risk assessment is crucial for pipeline safety management and operation. The aim of this study is to develop a comprehensive assessment model that accurately evaluates pipeline risks and ensures the safe and reliable operation of the pipeline system. The model is based on multisource spatial data and is primarily applicable to long-distance oil and gas pipelines that traverse complex geological conditions in mountainous areas. The research is conducted using the example of the Jinliwen natural gas pipeline in Zhejiang Province, China. By analyzing the geological data of the study area and the potential risks that the pipeline may encounter, a comprehensive risk assessment indicator system for the pipeline was developed using slope units to divide pipeline sections. The pipeline risk levels are classified using the K-means clustering-entropy weighted-random forest algorithm. The model is evaluated using accuracy (Acc), precision (Pre), recall (R), F1-score, and the ROC curve. The results show that the model has an accuracy of 0.917, a precision of 0.92, a recall of 0.916, an F1-score of 0.914, and an AUC (Area Under Curve) of 0.93, indicating its strong predictive capability. The risk assessment results demonstrate a strong consistency when compared with actual incident events. This indicates that the constructed model effectively reflects the influencing factors of pipeline risk, providing a basis for pipeline risk assessment and disaster prevention and mitigation efforts in similar regions.

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Dynamic assessment of dust hazard risk in the reconstruction of old industrial buildings: coupling effects of dust distribution and personnel trajectories

Tian,

Hu,

et al. 2023

Environ Sci Pollut Res

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An integrated risk assessment methodology based on fuzzy TOPSIS and cloud inference for urban polyethylene gas pipelines

Cited by 17 publications

References 30 publications

Study on the impact of soil environment organic substances on the ageing of urban PE gas pipes in service

Study on the impact of soil environment organic substances on the ageing of urban PE gas pipes in service

Integrated Risk Assessment of Mountainous Long-Distance Oil and Gas Pipelines Based on Multisource Spatial Data

Dynamic assessment of dust hazard risk in the reconstruction of old industrial buildings: coupling effects of dust distribution and personnel trajectories

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