Civil and Architectural Engineering | Conference paper | Published 2021

Underground polymeric l-shaped pipeline vibrations under seismic effect

Keywords: equations, vibrations, pipelines, polymeric pipeline.


The simultaneous equations of longitudinal and transverse vibrations of an underground polymeric L-shaped pipeline under the arbitrary direction of seismic load were derived in the paper. A computational scheme of the problem was constructed using central finitedifference relations. The analysis of the results obtained on the simultaneous longitudinal and transverse vibrations of underground polymeric L-shaped pipelines under seismic loading was conducted. The stress-strain state of the L-shaped polymeric pipeline subjected to seismic effect was determined, and the axial forces and bending moments arising in curved pipelines during an earthquake were determined.


  1. 1. Rashidov T.R., Mubarakov Y. Seismodynamics of underground structures, Soil Mech. Found. Eng. 29 pp. 213–216 (1992) 2. Rashidov T.R. Dynamic theory of earthquake resistance of complex systems of underground structures, Tashkent, "Fan", (1973) 3. Rashidov T, Ishankhodzhaev A .A., and Abduzhabarov A . Earthquake effects on the shallow lying tunnels and earth road bed (1973) 4. Bekmirzaev D.A., Mirzaev I. Earthquake Resistance Assessment of Buried Pipelines of Complex Configuration Based on Records of Real Earthquakes, Soil Mech. Found. Eng.
  2. 57
  3. pp. 491–496, (2021) 5. Bekmirzaev D.A., Mirzaev I., Mansurova N Sh., Kosimov E.A., and Juraev D.
  4. Numerical methods in the study of seismic dynamics of underground pipelines, IOP Conf. Ser. Mater. Sci. Eng. 869 052035 (2020) 6. Bekmirzaev D.A., Kishanov R.U., and Mansurova N.Sh. Mathematical Simulation and Solution of the Problem of Seismo–Dynamics of Underground Pipelines, Int. J. Emerg. Tr. Eng. Res. 8 pp. 5028–5033, (2020) 7. Bekmirzaev D.A., Mansurova N.Sh., Nishonov N.A., Kosimov E.A., and Numonov A. Underground pipelines dynamics problem solution under longitudinal seismic loading, IOP Conf. Ser. Mater. Sci. Eng., 883, 012045, (2020) 8. Nishonov N.A., Bekmirzaev D.A., An E.V., Urazmukhamedova Z and Turajonov K.
  5. Behaviour and Calculation of Polymer Pipelines Under Real Earthquake Records, IOP Conf. Ser. Mater. Sci. Eng. 869, 052076 (2020) 9. Kosimov E.A., Mirzaev I and Bekmirzaev D.A. Comparison of the impacts of harmonic and seismic waves on an underground pipeline during the Gazli earthquake, IOP Conf. Ser. Mater. Sci. Eng. 1030, 012082, (2021) 10. Miralimov M, Adilov F, Abirov R, Juraev D and Khazratkulov I. To numerical approach for calculation of underground structures, IOP Conf. Ser. Mater. Sci. Eng. 883, 012204 (2020)
  6. 11. Amanov A.T, Bahadirov G.A, Tsoy G.N and Nabiev A.M. A New Method to Wring Water-Saturated Fibrous Materials, Int. J. Mech. Eng. Robot. Res. 10 pp. 151–156, (2021)
  7. 12. Rashidov T.R., and Nishonov N.A. Seismic Behavior of Underground Polymer Piping with Variable Interaction Coefficients, Soil Mech. Found. Eng. (2016) 13. Rashidov T.R., Mardonov B.M. and An E.V. Transverse Vibrations of Buried Pipelines Under Axial Loading Within Geometrically Nonlinear Theory, Int. Appl. Mech. 55 pp. 229–238, (2019) 14. Rashidov T.R. and Khojmetov G.X. Earthquake resistance of underground pipelines, Tashkent, ''Fan" (1985) 15. Bekmirzaev D.A. and Mirzaev I. Dynamic processes in underground pipelines of complex orthogonal configuration at different incidence angles of seismic effect, Int. J. Sci. Technol. Res. 9 2449–2453, (2020) 16. Kabulov V.K. Algorithmization in the theory of elasticity and strain plasticity, A monograph. Tashkent, Fan. p. 386, (1966) 17. Rashidov T.R., Yuldashev T and Bekmirzaev D.A. Seismodynamics of Underground Pipelines with Arbitrary Direction of Seismic Loading, Soil Mech. Found. Eng. 55 pp.243–248 (2018)
  8. 18. Rashidov T.R. and Bekmirzaev D.A. Seismodynamics of Pipelines Interacting with the Soil Soil Mech. Found. Eng., 52, pp. 149–54, (2015) 19. Ilyushin A.A. Plasticity. Elastic-plastic strains. Part 1. M.: Logos,. p. 388, (2004) 20. Badalov F.B. Methods for solving integral and integro-differential equations of the hereditary theory of viscoelasticity, A monograph, p. 272, Tashkent, (1987)
















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