Deep excavation solutions for the construction of a logistic park in Loures (Lisbon)
Deep excavation solutions for the construction of a logistic park in Loures (Lisbon)
This paper aims to describe the deep excavation solutions adopted for the construction of a logistics park with an implantation area of approximately 107 000 m2, located in the municipality of Loures in Lisbon. The use of this site for the construction of a large-scale building with demanding future performance criteria proved to be extremely challenging, particularly because the original place had previously been used as a limestone quarry and subsequently as a landfill for various materials associated with the construction of the nearest main road network. Given the existing constraints, particularly the desired implantation area, the geological-geotechnical study and the neighboring conditions, a deep excavation solution was defined for a maximum height of 20 m, consisting of a bored pile wall with 800 mm diameter and with shotcrete between the piles, braced by permanent anchors and complemented with a concrete Berlin-type wall solution in areas where the limestone rock, with low degrees of alteration and fracturing, emerged above the excavation bottom. In addition to the adopted design criteria, the proposed instrumentation and monitoring plan for the retaining solution and neighboring infrastructure are also presented.
A. Henriques; R. Tomasio; F. Ramalho; J. Dias
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
D - Current and new construction methods
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