Earthquakes and Structures

  • 제26권3호
  • /
  • Pages.239-249
  • /
  • 2024
  • /
  • 2092-7614(pISSN)
  • /
  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Seismic response analysis of buried oil and gas pipelines-soil coupled system under longitudinal multi-point excitation

  • Jianbo Dai (School of Civil Engineering, Xi'an Shiyou University) ;
  • Zewen Zhao (School of Mechanical Engineering, Xi'an Shiyou University) ;
  • Jing Ma (School of Mechanical Engineering, Xi'an Shiyou University) ;
  • Zhaocheng Wang (School of Mechanical Engineering, Xi'an Shiyou University) ;
  • Xiangxiang Ma (School of Mechanical Engineering, Xi'an Shiyou University)
  • 투고 : 2023.07.14
  • 심사 : 2024.02.20
  • 발행 : 2024.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

A new layered shear continuum model box was developed to address the dynamic response issues of buried oil and gas pipelines under multi-point excitation. Vibration table tests were conducted to investigate the seismic response of buried pipelines and the surrounding soil under longitudinal multi-point excitation. A nonlinear model of the pipeline-soil interaction was established using ABAQUS finite element software for simulation and analysis. The seismic response characteristics of the pipeline and soil under longitudinal multi-point excitation were clarified through vibration table tests and simulation. The results showed good consistency between the simulation and tests. The acceleration of the soil and pipeline exhibited amplification effects at loading levels of 0.1 g and 0.2 g, which significantly reduced at loading levels of 0.4 g and 0.62 g. The peak acceleration increased with increasing loading levels, and the peak frequency was in the low-frequency range of 0 Hz to 10 Hz. The amplitude in the frequency range of 10 Hz to 50 Hz showed a significant decreasing trend. The displacement peak curve of the soil increased with the loading level, and the nonlinearity of the soil resulted in a slower growth rate of displacement. The strain curve of the pipeline exhibited a parabolic shape, with the strain in the middle of the pipeline about 3 to 3.5 times larger than that on both sides. This study provides an effective theoretical basis and test basis for improving the seismic resistance of buried oil and gas pipelines.

키워드

과제정보

This project is funded by the Natural Science Foundation of China (52174061; 51808446) and Key Research and Development Program of Shaanxi (2022SF-305), and the Shaanxi Qin Chuang Yuan "Scientist + Engineer" team construction project (2023KXJ-194), and Postgraduate Innovation and Practice Ability Development Fund of Xi'an Shiyou University (YCS23113071).

참고문헌

  1. Adane, M. and Kim, J. (2023), "Seismic retrofit of a soft first story structure considering soil effect", Earthq. Struct., 24(5), 345-352. https://doi.org/10.12989/eas.2023.24.5.345.
  2. Alzabeebee, S. (2019), "Response of buried uPVC pipes subjected to earthquake shake", Innov. Infrastr. Solut., 4(1), 52. https://doi.org/10.1007/s41062-019-0243-y.
  3. Alzabeebee, S. (2019), "Seismic response and design of buried concrete pipes subjected to soil loads", Tunn. Undergr. Sp. Technol., 93, 103084. https://doi.org/10.1016/j.tust.2019.103084.
  4. Alzabeebee, S. (2022), "A comparative study of the effect of the soil constitutive model on the seismic response of buried concrete pipes", J. Pipeline Sci. Eng., 2(1), 87-96. https://doi.org/10.1016/j.jpse.2021.07.001
  5. Dai, J., Wang, L., Hu, C. and Zhang, G. (2021), "Experimental study on seismic response of buried oil and gas pipeline soil layers under lateral multipoint excitation", Shock Vib., 2021, 1-11. https://doi.org/10.1155/2021/9887140
  6. Dai, J., Wang, Z., Wang, Z. and Wang, L. (2022), "Seismic response analysis of buried oil and gas pipeline under bidirectional multi-point excitation", Soil Dyn. Earthq. Eng., 162, 107469. https://doi.org/10.1016/j.soildyn.2022.107469.
  7. Dai, J., Wang, Z., Wang, Z., Wang, H., Ma, J. and Zhao, Z. (2023), "Shake table test and numerical analysis of the seismic response of buried long-distance pipeline under longitudinal non-uniform excitation", Struct., 47, 1241-1249. https://doi.org/10.1016/j.istruc.2022.11.133
  8. Dai, J.B., Wang, L., Hu, C.T. and Zhang, G. (2023), "Experimental study on seismic response of buried oil and gas pipelines under longitudinal multi-point seismic excitation", J. Disaster Prevent. Mitigat. Eng., 43(2), 259-269. https://doi.org/10.13409/j.cnki.jdpme.20210624004.
  9. Du, X.L., Han, J.Y. and Li, L.Y. (2013), "Selection of shaking table test similarity relations for long-distance buried pipeline", J. Disaster Prevent. Mitigat. Eng., 33(3), 246-252. https://doi.org/10.13409/j.cnki.jdpme.2013.03.004.
  10. GB50011-2010 (2010), Code for Seismic Design of Buildings, China Architecture and Building Press, Beijing, China.
  11. Goktepe, F., Sahin, M. and Celebi, E. (2020), "Small shaking table testing and numerical analysis of free-field site response and soil-structure oscillation under seismic loading", Bull. Eng. Geol. Environ., 79, 2949-2969. https://doi.org/10.1007/s10064-020-01742-w.
  12. Han, J., Wang, X., Miao, H., Guo, Z., Zhong, Z. and Du, X. (2023), "Numerical simulation and experimental validation of seismic response of a buried pipeline under non-uniform excitation", J. Harbin Eng. Univ., 44(3), 337-344.
  13. Hu, J.L., Sun, L.C., Cui, H.H. and Gao, P.F. (2021), "Numerical analysis of deep foundation pit deformation based on modified Mohr-Coulomb model", Sci. Technol. Eng., 21(18), 7717-7723.
  14. Inoue, N. and Sakuma, T. (2018), "Finite element modeling of acoustic resonators with thermal and viscous boundary layers", Acoust. Sci. Technol., 39(5), 355-358. https://doi.org/10.1250/ast.39.355.
  15. Khan, M.U.A. and Shukla, S.K. (2021), "Numerical investigation of the structural response of a conduit buried within a soil slope", Transp. Geotech., 30, 100614. https://doi.org/10.1016/j.trgeo.2021.100614.
  16. Li, H.N. and Liu, C.G. (2005), "Trends and prospects for research on disaster mitigation in lifeline engineering system", J. Dalian Univ. Technol., 45(6), 931-936.
  17. Liang, R., Yan, P.F., Shao, S.W. and Jiang, F. (2008), "Analysis of dynamic response of buried pipelines to seismic wave", J. Lanzhou Univ. Technol., 34(6), 148-150.
  18. Liu, J.L., Lin, J.Q. and Chen, X. (2012), "Study on loss assessment methodology for lifeline system under earthquake disaster", J. Nat. Disasters, 21(6), 50-56.
  19. Lv, Y., Liang, L.R., Li, Y.W., Chen, Y. and Chouw, N. (2021), "Experimental and finite-element study of buried pipes connected by bellow joint under axial cyclic loading", J. Pipeline Syst. Eng. Pract., 12(1), 04020069. https://doi.org/10.1016/j.trgeo.2021.100614.
  20. Wang, X., Zhao, D.F. and Liu, Y. (2011), "Research progress on the safety of long-distance pipelines under seismic action", Saf. Environ. Eng., 18(6), 28-33.
  21. Wu, Q. and Wu, Z.L. (2012), "Parameter sensitivity analysis and correction of the moore coulomb principal structure model", Shaanxi Water Resour., 2, 148-149.
  22. Xu, L.Y. and Zhou, Z.G. (2022), "Impact of target spectra variance of selected ground motions on seismic response of structures", Earthq. Struct., 23(2), 115-128. https://doi.org/10.12989/eas.2022.23.2.115.
  23. Zhang, H., Zhao, Y., Gao, M. and Gao, J. (2021), "Centrifugal seismic experimental study of buried pipelines in non-uniform soil", Eng. Mech., 38(11), 88-94.
  24. Zhang, J.C. and Zhang, C.W. (2023), "Earthquake induced structural pounding between adjacent buildings with unequal heights considering soil-structure interactions", Earthq. Struct., 21(3), 155-163. https://doi.org/10.12989/eas.2023.24.3.155.