Research on Deformation Characteristics of Tunnel Box Culvert Structure under Different Construction Loads

Abstract

The box culvert structure is an important part of the internal structure of the tunnel. The stability of the box culvert structure directly affects the safety of the tunnel structure, so it is particularly important for the deformation analysis of the box culvert structure. This study uses the finite element software ABAQUS to establish a numerical model of soil-tunnel-assembled box culvert, and quantitatively analyzes the influence of different construction loads on the deformation of the box culvert structure. Through analysis and summary, the horizontal and vertical deformation of the box culvert structure under construction load and the force deformation performance of the junction of the box culvert structure are obtained. At the same time, the deformation performance of the connection between the internal prefabricated box culvert and the side plate under the load of the construction vehicle is also obtained. It has certain guiding significance for the research on the force of the box culvert structure inside the tunnel.