Paper Title :The Interaction Between an Urban Tunnel and an Excavation Soil Nailed Wall
Author :Seyedyasin Jamali, M.A.Lashteh Neshaei
Article Citation :Seyedyasin Jamali ,M.A.Lashteh Neshaei ,
(2018 ) " The Interaction Between an Urban Tunnel and an Excavation Soil Nailed Wall " ,
International Journal of Management and Applied Science (IJMAS) ,
pp. 24-28,
Volume-4,Issue-3
Abstract : The current research is aimed to investigate the mutual effects of a metro tunnel and an adjacent excavation which
supports with nailing method. To achieve this, numerous numerical analyses are performed. It was shown that the horizontal
movement of tunnel is toward the excavation for all cases because of horizontal unloading induced by excavating process. In
addition, it was observed that there would be a critical zone around the excavation in which, soil excavation has considerable
effect on adjacent existing tunnel, both in terms of horizontal and vertical displacements as well as internal loads on the
tunnel lining. For vertical displacement, however, soil excavation leads to upward deflection of tunnel due to unloading
effect. The numerical analyses were clearly showed that the tunnels existed in high depths have larger upward deflection due
to soil excavation than tunnels in less depths. Further, the results were showed that both vertical and horizontal displacement
on top of the wall increases as the distance of tunnel from excavation increases. Finally, it was observed that increasing the
distance of tunnel from the excavation significantly reduces the relative bending moment, shear force and axial force on the
lining.
Index Terms: Tunnel, Soil excavation, Soil nailing, Interaction, Supported wall.
Type : Research paper
Published : Volume-4,Issue-3
DOIONLINE NO - IJMAS-IRAJ-DOIONLINE-11469
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Copyright: © Institute of Research and Journals
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Published on 2018-05-10 |
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