Effects of Seismic Loads from Underground Accidental Explosions Occurring Between Ground Surface and Buried Pipes

Olarewaju, A.J. (2021) Effects of Seismic Loads from Underground Accidental Explosions Occurring Between Ground Surface and Buried Pipes. International Journal of Advanced Geotechnic and Impact Engineering (IJAGIE, 1 (1). pp. 1-10. ISSN 2545-5559

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Abstract

Underground accidental explosions are caused by the detonation of explosive materials (solid, liquid or gas) stored below the ground surface. In this study, effects on underground pipes due to varying degrees of underground accidental explosions between the ground surface and buried concrete and steel pipes were studied using ABAQUS, a finite element numerical code. Concrete and steel pipes buried in loose sand and dense sand at various depths below the ground surface were modelled. The material properties as revealed by several researchers were used. Pipe and soil materials were limited to linear, elastic, homogeneous and isotropic. The observed parameters are displacement, pressure, mises, stress and strain at the crown, invert and spring-line of buried pipes. The results showed that irrespective of the ground media, at a given loading wave velocity, displacement remains relatively constant as the embedment ratio increases. Even though there is variation in the results due to dilations and compressions caused by the transient stress pulse of compression wave, some of the observed parameters reduce as the depth of burial of pipes increased.

Item Type:	Article
Uncontrolled Keywords:	Underground, Explosion, Pipes, Loading Wave Velocity
Subjects:	T Technology > TD Environmental technology. Sanitary engineering T Technology > TE Highway engineering. Roads and pavements T Technology > TG Bridge engineering
Divisions:	Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User:	Joy Oluwabukola Olayiwola
Date Deposited:	28 May 2021 08:55
Last Modified:	28 May 2021 08:55
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/1360

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