Abstract: The settlement of bridge abutment should be strictly controlled during the tunneling shield construction under the shallow foundation of tied arch bridges. To investigate the effect of static pressure injection method on the settlement control of bridge abutment, the tunneling shield models in a subway construction under shallow foundation of tied arch bridges was set up and the sequential excavation of the tunneling shields was simulated by FLAC3D. The numerical simulation results indicated that the settlement of bridge abutment would exceed the regulation requirement. Reinforced by the static pressure injection method, the bridge abutment was numerically simulated once again by adjusting relative parameters. The latter simulating results indicated the settlement of bridge abutment was well controlled. By monitoring the settlements of bridge abutment and deck in the construction, the numerical results were validated and the static pressure injection method was proved to be effective on settlement controlling of bridge abutment.
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2019, Vol. 1 
