A preliminary numerical investigation of the effects in terms of tunnelling-induced ground movements in short- and long-term due to the construction of a Double-O-Tube tunnel in London clay beneath Hyde Park is presented. The model is calibrated against oedometer and undrained triaxial tests on intact samples of London Clay using a kinematic hardening soil model (named M2-SKH). The adoption of this advanced constitutive model is justified through the simulation of some drained and undrained triaxial tests on normal-consolidated and over-consolidated samples. The results are compared to a recent analysis of the excavation of the new Crossrail twin tunnels, which provides excellent predictions of the measurements obtained with the available field monitoring data.