Application of non-excavation technology in the transition section of highway deep soft foundation road and bridge

Abstract

Highway road and bridge transition section for the bridge and general roadbed combined with the lot, due to stiffness and deformation differences triggered by the bridge head jump phenomenon. For the deep soft foundation section, it is more serious. For the operation of highway bridge head jump phenomenon, the use of traditional excavation treatment measures can no longer meet the high traffic volume of road preservation needs. Non-excavation treatment is the technology developed under the demand, in the premise of not affecting the vehicle traffic, the bridge transition section treatment, for the high traffic volume of the in-service highway incessant treatment has a greater advantage. This paper proposes the non-excavation technology applicable to the transition section of highway road and bridge, and conducts comparative analysis on its economy, technology and feasibility, which can provide relevant engineering reference for the treatment of deep soft foundation section of bridge head jumping without continuity.