Impact of tunnelling on piles in Parisian subsoil: dataset of in-situ measurements in the ground and on three instrumented piles.

A major full-scale experiment (the TULIP - Tunneling and Limitations on the Impact on Piles - research project) was conducted in 2020 on Line 16 of the Grand Paris Express project (France). Its objective was to analyze the tunnel boring machine-soil-pile interactions occurring during tunnel excavation near piled structures in the context of the geology of the Paris basin. This data paper summarizes the main measurements made during this experiment, namely: (i) the horizontal and vertical displacements measured in the ground, on the surface and in the thickness of the cover, (ii) the settlements of the pile heads, and the variations of the normal forces in the pile depth.

Vibrations induced by tunnel boring machines in urban areas: Dataset of synchronized in-situ measurements inside the shield and on the surface.

In order to evaluate the potential impact of the shallow tunnel excavation by a tunnel boring machine (TBM) in urban areas, the authors present original in-situ measurements of vibrations inside the TBM and simultaneously on the surface. Four experimental campaigns were carried out on French tunnelling or micro-tunnelling projects, whose geotechnical contexts vary from hard rock to clayey sands. Each campaign is divided into two steps: (i) before excavation, measurements on the surface under mechanic ambient noise, and (ii) during excavation, measurements on the surface and inside the TBM.