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Study on Minimum Safety Protection Distance of High-Pressure Natural Gas Pipeline Based on Physical Explosion Injury Consequences
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  • Yuqing Liu,
  • Yazhe Zhou,
  • Wenshu Wang,
  • Shanshan Tian,
  • Yawei Zhou,
  • Na Gao,
  • Karyal Kazman
Yuqing Liu
zhongguo shiyou guandaoju gongcheng youxian gongsi
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Yazhe Zhou
zhongguo shiyou guandaoju gongcheng youxian gongsi
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Wenshu Wang
University of Science and Technology Beijing School of Civil and Resources Engineering
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Shanshan Tian
zhongguo shiyou guandaoju gongcheng youxian gongsi
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Yawei Zhou
National Pipeline Network Group Engineering Technology Innovation Co Ltd
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Na Gao
University of Science and Technology Beijing School of Civil and Resources Engineering

Corresponding Author:[email protected]

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Karyal Kazman
University of Science and Technology Beijing School of Civil and Resources Engineering
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Abstract

High-pressure natural gas pipeline transportation has the advantages of large gas transmission capacity, low transportation cost, whereas physical explosion of the pipeline may cause casualties and property losses. Based on the theory of conversion of physical explosion energy and TNT equivalent of high-pressure natural gas pipeline, this research uses HyperMesh software to build a physical explosion model of high-pressure natural gas pipeline. The crater generated by physical explosion of pipeline was simulated and analyzed using LS-DYNA software. It can be concluded that the crater building process was completed in 0.038 s, forming spindle shaped cavity crater (9.27 m×4.86 m×3.0 m). The overpressure value of the shock wave at the center of the ground burst is 6.64 MPa according to the simulation of the generation and attenuation process of the physical explosion shock wave. Based on Sadovsky’s research conclusion on shock wave attenuation, the minimum distance required for shock wave attenuation on the ground to the safe overpressure value (0.02 MPa) is 33 m. The research conclusion is of great significance to the prediction of the consequences of physical explosion damage of high-pressure natural gas pipeline and the determination of the safe laying scheme.
06 Jul 2023Submitted to Engineering Reports
10 Jul 2023Submission Checks Completed
10 Jul 2023Assigned to Editor
10 Jul 2023Review(s) Completed, Editorial Evaluation Pending
16 Jul 2023Reviewer(s) Assigned
16 Aug 2023Editorial Decision: Revise Major
01 Nov 20231st Revision Received
16 Nov 2023Submission Checks Completed
16 Nov 2023Assigned to Editor
16 Nov 2023Review(s) Completed, Editorial Evaluation Pending
17 Nov 2023Reviewer(s) Assigned
06 Feb 20242nd Revision Received
04 Mar 2024Review(s) Completed, Editorial Evaluation Pending
06 Mar 2024Reviewer(s) Assigned
06 Apr 2024Editorial Decision: Accept