Numerical analysis of piles to reduce ground movements induced by shallow tunnelling

The construction of shallow tunnels of large diameter for urban underground railways often requires specific actions aimed to control the ground movements induced by the excavation. This paper focuses on the use of piles as a mitigating action. Three-dimensional numerical analyses have investigated the possibility of optimising the design of a line of piles, indicating the crucial role played by their spacing. The analyses show that there is a threshold of the spacing below which the piles are effective as a means to reduce ground movements induced by shallow tunnelling.

The construction of shallow tunnels of large diameter for urban underground railways often requires specific actions aimed to control the ground movements induced by the excavation. This paper focuses on the use of piles as a mitigating action. Three-dimensional numerical analyses have investigated the possibility of optimising the design of a line of piles, indicating the crucial role played by their spacing. The analyses show that there is a threshold of the spacing below which the piles are effective as a means to reduce ground movements induced by shallow tunnelling.


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AUTORI: Bilotta E., Russo G., Viggiani C.
RIG ANNO:2007 NUMERO:2
Numero di pagine: 23


Allegato: https://associazionegeotecnica.it/wp-content/uploads/2010/03/RIG_2008_2_023.pdf
Allegato:
Articolo completo: https://associazionegeotecnica.it/wp-content/uploads/2010/03/RIG_2008_2_023.pdf