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

Abstract

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. These data, interpreted in two articles cited in the references, may be of interest for the calibration of analytical and numerical models dedicated to the estimation of the impact of TBM excavation on neighboring constructions, in particular those based on piles.

Keywords

• Surface settlements, inclinometers, extensometers, normal force in piles, TBM
• soft ground
• pile interaction