<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Toufik Karech, Noui Abdelkader, Berkan Aicha,Ahmed Beroual</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">International Journal of Engineering Sciences</style></title></titles><dates><year><style  face="normal" font="default" size="100%">2021</style></year></dates><volume><style face="normal" font="default" size="100%">14</style></volume><pages><style face="normal" font="default" size="100%">1-9</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;div style=&quot;left:85.3235px;top:432.963px;15.7375px;sans-serif;transform:scaleX(0.882764);&quot;&gt;
	The digging of one or more tunnels is a process that destabilizes the field, maintaining the stability of the tunnel wall and
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	control of ground movements around the gallery resulting from each excavation and the interaction between two tunnels mu
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	st
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	be controlled. This research aims to analyze and understand the physical mechanisms games during the digging of two twin
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	tunnels throughout the spatial configurations and evaluated the ground motion induced by the interaction between
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	these two
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	lasts
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	. Th
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	e three
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	-
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	dimensional effect of widening is taken into account using the decontainment
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	
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	rate of soil adjacent to the
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	excavation by the application of the convergence
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	-
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	confinement method. The modeling work is executed in two
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	-
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	dimensional, by
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	using the finite d
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	ifference code Flac
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	-
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	2D. A comparison of numerical simulation results with in
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	-
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	situ measurements was
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	established in the particular case of two parallel horizontal tubes of the tunnel T4 on Elharouche Skikda and for which
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	experimental data exist.
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</style></abstract><issue><style face="normal" font="default" size="100%">ISSN 0976  – 6693</style></issue></record></records></xml>