Samenvatting
Report thruways constractions problems, containing the following 4 parts: I: Sprayed concrete lining system report, G. Audoly, p. 5 / II: Special foundation soil treatments in presence of water and of huge boulders, adopted in the construction of bridges for the Quincinetto-Aosta motorway, G. Avventi, p. 21 / III: Rome urban expressway network designed by Sara, M. Bruni, p. 35 / IV: Construction of a thruway on Soil with low bearing capacity in the Migliarino Zone (Pisa-Italy), R. Barsanti, p. 49.