Not included in the Conference registration fee. Technical visits can be booked during registration as a supplementary option.
The following Technical Visits are meant to introduce a number of Italian sites related to geosynthetics. All participants can apply to this complementary program that will take place on 22nd September 2023. Applications will be dealt with on a first-come first-serve basis. Programme could be changed or cancelled according to the number of participants (and paid registration fee refunded).
A technical visit will be organised to the underground construction sites of the new Metro Line C that underpass the historical centre of Rome. Line C was conceived to link the city’s eastern quadrant to its northwest one. Starting from the Pantano terminus in the Municipality of Montecompatri, the line stretches for about 25.6 Km, approximately 9 of which on the surface and 16.5 underground, cutting through historic city neighbourhoods such as Centocelle, Alessandrino, Pigneto, Appio as well as through the historic centre itself, before reaching the Prati area in the vicinity of Piazzale Clodio. Its completion will make a truly integrated public transport network.
Important historical monuments of Roman Age, such as the Church of Santo Stefano Rotondo, the Anfiteatro Flavio (Coliseum) and the Basilica di Massenzio are mainly encountered along the route of the line. This made the construction process more problematic due to the presence of buried archaeological remains coupled with the need of minimising the impact of tunnelling and deep excavations on the historical and monumental heritage. A visit will be organised to the construction sites of the Metro station at Fori Imperiali along with those of a deep ventilation shaft, close to Villa Celimontana, and of a circular shaft, close to the Aurelian Walls at Porta Metronia. This latter was excavated to install the sleeved grout tubes (tubes à manchette – TAMs) to inject grout in the soil between the tunnel and the wall foundations, in order to compensate for ground loss and stress relief caused by tunnelling.
A technical visit will be organised to the Borgo Montello landfill site. These is a landfill operated between 1998 and 2015 and was filled by MSW. It has 8 different disposal basins and the last one (S8) is ready for the permanent capping construction.
In the landfill area is functioning an innovation treatment biogas’ plant to obtain Methane gas and is under construction a new leachate treatment plant by osmotic membrane.
The permanent capping of S8 basin will be under the new Italian law (D.Lgs 121/2022) that allowed an intensive use of geosynthetics to avoid natural soil consumption.
The capping design is based on a original settlement monitoring based on the use of a geomembrane as reference plane for the measurement.
For the final shape configuration of the landfill heap it will necessary remodeling the waste body so a critical aspect on the odor was under attention.
A combination of odor electronic monitoring (electronic nose) and temporary capping was designed for a reduction of environmental impacts. During the technical visit, these two arguments will be presented to the delegates.