Abstract
In order to study the stress-strain response of a buried pipeline with internal pressure under the ground explosive, a numerical calculation model of the buried pipeline with internal pressure was established. The dynamic process of the buried pipeline was simulated after the explosion on the ground. Effects of internal pressure, magnitude of TNT, wall thickness, and buried depth on the stress-strain of pipeline were studied. The results showed that the region of high stress and plastic strain presented to the upper pipeline and extended toward axial direction, and then extended toward circumferential direction under the ground explosion. With the increasing of internal pressure, the high-stress zone fades away, the plastic strain zone and deformation of pipeline decrease. The stress and deformation of buried pipeline increase with the magnitude of TNT increases, but they decrease with the increasing of buried depth and wall thickness. Those results can provide theoretical basis and reference for pipe laying of oil-gas pipeline, safety evaluation, and maintenance, etc.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. Zhang, Z. Liang, G.H. Zhao, Mechanical behaviour analysis of a buried steel pipeline under ground overload. Eng. Fail. Anal. 63, 131–145 (2016)
J. Zhang, Z. Liang, C.J. Han, Numerical simulation of mechanical behavior of buried pipeline impacted by perilous rock. Mechanika 21(4), 264–271 (2015)
C. Ji, X.Y. Tang, J.P. Tang, Study on dynamic response of buried pipeline affected by ground explosion load. Nat. Gas Oil 32(6), 1–4 (2014)
A.L. Yao, S.P. Zhao, H.Q. Yao, Numerical simulation of response of underground explosion ground shock to buried gas pipeline. J. Southwest Pet. Univ. (Sci. Technol. Ed.) 31(4), 168–172 (2009)
D.G. Wang, Safe distance of overhead parallel pipeline calculated by numerical simulation of gas pipeline explosion. J. China Univ. Petroleum 37(5), 175–180 (2013)
D.J. Du, Z.D. Deng, P. Zhang, Numerical simulation for dynamic stress of buried pipelines under ground shock waves of explosion in soil medium. Blasting 22(1), 20–24 (2005)
M. Mokhtari, A.A. Nia, A parametric study on the mechanical performance of buried X65 steel pipelines under subsurface detonation. Arch. Civil Mech. Eng. 15(3), 668–679 (2015)
M. Mirzaei, M. Najafi, H. Niasari, Experimental and numerical analysis of dynamic rupture of steel pipes under internal high-speed moving pressures. Int. J. Impact Eng. 85, 27–36 (2015)
G.P. Kouretzis, G.D. Bouchovalas, C.J. Gantes, Analytical calculation of blast-induced strains to buried pipelines. Int. J. Impact Eng. 34(10), 1683–1704 (2007)
J. Zhang, Z. Liang, C.J. Han, Collapse failure of directional crossing pipelines and the design of its protective devices. Nat. Gas Ind. 35(11), 91–96 (2015)
J. Zhang, Z. Liang, C.J. Han, Buckling behavior analysis of buried gas pipeline under strike-slip fault displacement. J. Nat. Gas Sci. Eng. 21, 921–928 (2014)
X. Cai, Y.D. Zhang, Numerical stimulation on damage of large diameter pipe under blast loading. Ind. Constr. 44, 236–240 (2014)
Acknowledgments
This work is supported by Science and Technology Innovation Talent Engineering Project of Sichuan Province (2016RZ0040).
Author information
Authors and Affiliations
Corresponding authors
Rights and permissions
About this article
Cite this article
Zhang, L., Liang, Z. & Zhang, J. Mechanical Response of a Buried Pipeline to Explosion Loading. J Fail. Anal. and Preven. 16, 576–582 (2016). https://doi.org/10.1007/s11668-016-0121-2
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11668-016-0121-2