Civil Engineering and Architecture Vol. 10(4), pp. 1317 - 1326
DOI: 10.13189/cea.2022.100407
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Treatment by Ballasted Column against the Phenomenon of Liquefaction Soil: Case of the Mohamed VI Tower in Morocco

Youness Tlidi ^1,*, Lahcen Bahi ¹, Latifa Ouadif ¹, Anas Bahi ¹, Mustapha Amrani ^2
1 L3GIE Laboratory, Mohammed V University, Mohammadia Engineering School, 10090 Agdal, Rabat, Morocco
² L3G Laboratory, University Cadi Ayyad (UCA), Marrakech 40000, Morocco

ABSTRACT

The proposed experiment allows an exhaustive analysis of the risk of liquefaction of the ground underlying the largest tower being built in Africa in the city of Rabat on a liquefiable soil. The seismicity maps of Morocco show that the Rabat region is in a seismically active zone, pointing out that Morocco is in a collision zone, near the boundary between the two plates of Africa - Eurasia. This article aims to expose all the steps taken to analyze the risk of soil liquefaction on the site by SPT tests on the one hand and to consider the risk of vibration due to the works of ballasted columns on the railway. After having eliminated the risk of liquefaction of the ground by the technique of the ballasted column with the wet track, at a depth of 10 meters, we proceed to a vibratory suitability test to protect the railroad track against the vibrations emitted by the vibrator of the ballasted columns execution machine. The test was carried out with the installation of geophone sensors, with different distances between the sources of vibration induced by the vibrator to achieve ballasted columns. Considering the lithology of the land, by this suitability we have concluded that the distance of 10 meters between the source of vibration and the railway is safe.

KEYWORDS
Stone Column, Liquefaction Phenomenon, Vibro-Compaction, Geophone, Vibration

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Youness Tlidi , Lahcen Bahi , Latifa Ouadif , Anas Bahi , Mustapha Amrani , "Treatment by Ballasted Column against the Phenomenon of Liquefaction Soil: Case of the Mohamed VI Tower in Morocco," Civil Engineering and Architecture, Vol. 10, No. 4, pp. 1317 - 1326, 2022. DOI: 10.13189/cea.2022.100407.

(b). APA Format:
Youness Tlidi , Lahcen Bahi , Latifa Ouadif , Anas Bahi , Mustapha Amrani (2022). Treatment by Ballasted Column against the Phenomenon of Liquefaction Soil: Case of the Mohamed VI Tower in Morocco. Civil Engineering and Architecture, 10(4), 1317 - 1326. DOI: 10.13189/cea.2022.100407.