ABSTRACT
This paper addresses the design and building solutions for the peripheral earth retaining structures, required for the construction of a development, which is a building complex of two building each 14 storeys high. The excavation footprint has approximately 6000 m2 with the deepest excavation depth of 9 m. The majority of the excavation intersected on heterogenous landfills, resting on top of Lisbon’s Vulcanic Complex. The site is located in Miraflores, near Monsanto Forest Park. Surrounding the site there are public roads and other building constructions taking place. To minimize settlements around the excavation a secant pile wall was built, and braced either by a concrete strip slab or temporary ground anchors, the north elevation has an open filed, which was used to create a slope, to access to the final excavation level allowing an easy way to remove the soil.
