Technical Visits
The scientific program of the event includes Technical Visits to relevant geotechnical sites, that will take place on Friday, the 30th of august 2024.
Technical visit to the Lisbon Drainage Master Plan
30 August 2024
Considering the increasing effects ofheavy/torrential precipitation, exponentiated by growing land use, underground construction and climate change effects, the Lisbon Drainage Master Plan (LDMP, or PGDL in Portuguese) aims to better protect Lisbon from flood events.
The actions of the PGDL can generically be embodied in 4 main issues:
- Control at the starting point with the construction of retention/infiltration basins and trench drains;
- Basin transfers - construction of 2 tunnels with an internal diameter of 5.5 m and overall length of approximately 6 Km;
- Reinforcement/renovation of the sanitation network (domestic and rain water sewers);
- Improved knowledge of Lisbon’s sanitation system, as well as its operation/monitoring.
Photo: Leonardo Negrão/Global Imagens
Technical visit to the Plot 2 of the Lisbon subway extension plan, including the Santos Station
30 August 2024
The Plot 2 of the Lisbon subway extension features extremely complex geotechnical interventions in a dense urban area, including:
- More than 22m deep anchored/propped reinforced concrete cast in situ bored pile retaining walls for the Santos station accesses and cut & cover tunnel sections;
- More than 22m deep anchored/propped reinforced concrete cast in situ diaphragm retaining walls for cut & cover tunnel sections and ventilation shafts;
- NATM tunnelling construction;
- Underpinning of existing buildings with deep foundation elements interacting with the tunnel construction;
