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Numerical analysis of underground tunnels subjected to surface blast loads
Faculty
Engineering
Year:
2021
Type of Publication:
ZU Hosted
Pages:
159-173
Authors:
Sali Elsaid Abdelmageed Hassn
Journal:
Frattura ed Integrità Strutturale Frattura ed Integrità Strutturale
Volume:
Keywords :
Numerical analysis , underground tunnels subjected , surface
Abstract:
The increased terrorist and vandalism attacks on important public structures and utilities have raised the vital necessity for the investigation of performance of structures under blast loads to improve the design and enhance the behavior of structures subjected to such threats. In this study, 3-D finite element analysis is used to study the effect of surface explosions on the response of RC bored tunnels. The soil behavior is modelled using Drucker-Prager Cap model. Two types ofsoil are investigated, and the blast load is considered through various weights of TNT explosive charges at heights of 0.50 m and 1.0 m from ground surface. To study the effect of horizontal standoff distance, six different horizontal distances are considered. The results show that the soil type has a significant effect on tunnel response due to surface blasts. Also the weight and the location of charge have a great effect on the safety of the tunnel. Finally, a parametric study is established to define the borders of the restricted area around the tunnel location to be safe
Author Related Publications
Sali Elsaid Abdelmageed Hassn, "Effect of Blasts on Underground Tunnels- An Overview", The Egyptian International Journal of Engineering Sciences and Technology, 2021
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Department Related Publications
Eshak Ibrahiem Eshak Hana, "Influence Surfaces of Rectangular Plates with Different Support Conditions – Part2", 4th Arab Structural Eng. Conference, Vol.2, Cairo Univ., Nov. 1991., 1991
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Eshak Ibrahiem Eshak Hana, "Design Aids and Comparative Study of Elastomeric Bearings for Bridges", Engineering Bulletin, Ain-Shams Univ., Vol.28, No.1, March 1993., 1993
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Rania Mohamed Samier Mohamed Kamal Amien, "EFFECT OF DAMAGE ON THE STRUCTURAL TIME PERIOD", لايوجد, 1900
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Atef Eraky Bakry Amien, "New", لايوجد, 1900
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Helal Abdelkader Mahmoud Hassann, "Effect of Cracking and Slab Openings on Lateral Behavior of Tall Buildings.", American Society of Civil Engineers (ASCE) 6th International Engineering & Construction Conference (IECC’6), Vol. 2, pp.839 – 851., 2010
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