2075
Unusual Geotechnical Solutions at the Leixões Cruise Terminal
Solutions géotechniques inhabituelles au terminal de croisières de Leixões
Pinto A., Pita X., Neves M.
JetSJ Geotecnia Lda
Vaz J.
Dimstrut – Engenharia de Estruturas Lda
ABSTRACT: The aim of this paper is to present the main design and execution criteria related with both cofferdam and foundations
solutions, using soil-cement panels, micropiles and bored piles in several applications, at the new Leixões Cruise Terminal, located at
the Leixões Port, in Portugal. The Terminal building is being built with one basement on a marine environment, over very difficult
geological and geotechnical conditions, which demanded the use of some unusual and integrated geotechnical solutions.
RÉSUMÉ : Dans cet article sont présentés les principaux critères de conception et d'exécution associés aux solutions des parois de
soutènement et des fondations, utilisant panneaux de sol - ciment, micropieux et pieux forés, pour le nouveau Terminal de Croisières
du Port de Leixões, au Portugal. Le bâtiment, avec un plancher au-dessous du niveau de l’eau est placé dans une ambiance maritime.
Ce scénario complexe a demandé l'utilisation de quelques solutions géotechniques peu communes et intégrées.
KEYWORDS: cutter soil mixing, piles, micropiles.
1 INTRODUCTION
The construction of the new Cruise Terminal at Leixões, at the
North of Portugal, as a consequence to the constant increase of
the cruise traffic, was a challenge from both the geotechnical
and structural point of views, mainly due to very difficult and
unusual conditions, ranging from the geological and
geotechnical scenario to the existent and under operation
Leixões Port infrastructures, mainly the South break water, as
well as the existent boarding deck (Figures 1 and 2).
Figure 1. Site location.
According to the Terminal Project it was necessary to build
one basement bellow the water table, including several earth
retaining structures in order to allow the excavation works on
dry conditions leading to a global cofferdam effect. For this
purpose soil - cement panels, using CSM technology, reinforced
with steel profiles, micropiles (both for foundation and cut off
effect) and the existent sheet piles were used. Also pointed out
are the adopted special foundations of a very complex structure,
including bored piles and micropiles (Figure 3).
Figure 2. Existent and final situations.
Figure 3. Perspective of the Cruise Terminal building.
