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Rail induced wave propagation in soil facing sloping rock

Håkan Lane (Institutionen för byggnadsmekanik) ; Torbjörn Ekevid (Institutionen för byggnadsmekanik) ; Nils-Erik Wiberg (Institutionen för byggnadsmekanik)
Proceedings of the 16th Nordic Seminar on Computational Mechanics in combination with the Pål G. Bergan Anniversary Seminar 16-18 October, 2003 Trondheim, Norway p. 141-144. (2003)
[Konferensbidrag, övrigt]

The paper examines solid wave propagation in the soil underneath a high speed train. The shortcomings of the finite element method at parts of the boundary are compensated for by the usage of a hybrid method including both regular elements and scaled boundary finite elements. The technique is applied to a rail section facing sloping rock, much like the sea facing the shore. Simulations will be conducted at different train speeds in order to examine whether a breakthrough resembling a “sonic boom” effect is detectable. Amplitudes are expected to be higher when going above the soil’s natural wave velocity.



Denna post skapades 2006-08-28.
CPL Pubid: 7009

 

Institutioner (Chalmers)

Institutionen för byggnadsmekanik (1900-2003)

Ämnesområden

Samhällsbyggnadsteknik

Chalmers infrastruktur