Water in tunnels represents a challenge in any geological condition. When dealing with cohesive
material, this aspect might bring additional problems linked to the low permeability, which does 
not allow effective and quick drainage to stabilize the ground around the tunnel. Ordinary draina-
ge systems are an effective method, especially in higher permeability grounds, but these are losing 
efficacy in soft clays. This paper focuses on an innovative technique for stabilizing the tunnel face 
and surrounding ground...

Bentonite slurries are essential for the operation of Slurry Tunnel Boring Machines (TBMs), helping to stabilize the excavation face, prevent soil collapse, and control groundwater inflow. This study examines the performance of a sodium-activated bentonite slurry used in tunnelling, focusing on its physical-chemical properties, rheological behavior, and interaction with soil. Tests were conducted to measure...

The Po Plain basin in the Emilia Romagna Region (Italy) has been historically affected by strong land movements ascribed to both anthropogenic and natural sources, as well as their superposition. The paper aims to the identification, geolocation and quantification of the main land movement phenomena of the Region via the time-series decomposition and the clustering analysis on the vertical component of...

In shielded mechanized tunnelling, the annular void created during the advancement of a Tunnel Boring Machine (TBM) must be continuously filled to minimize surface settlements and ensure optimal contact between the segment lining and the surrounding soil. Two component grout is widely used in the backfilling process due to its ability to meet both operational and performance requirements. This grout system...

The IN-GEST SOIL project aims to address soil degradation, particularly soil erosion by water, in hillslope vineyards in the Piedmont region of Italy. This study proposes a methodological framework for comprehensive vineyard characterization to establish a baseline for soil health investigations. The characterization involves using regional databases for climatic, geological, and pedological data, integrated...