Road-bridge transition section structure

Abstract

The invention provides a road-bridge transition section structure, which relates to the technical field of road-bridge transition sections, and solves the problem that the roadbed filling of the traditional road-bridge transition section gradually reduces the compressive deformation along with time due to self factors, and the roadbed filling is loosened, so that the uneven excessive settlement phenomenon is caused by vehicle driving. The road-bridge transition section structure comprises a ground surface layer and honeycomb-shaped concrete supporting blocks, wherein a bridge abutment is arranged on the ground surface layer, and a rubber separation layer is laid on the vertical end face of the right end of the bridge abutment in a bonding mode. A group of anti-settling mechanism box bodiesand a group of anti-settling mechanism buckling covers are arranged between the bridge abutment and the roadbed filling soil. Traditional road-bridge transition section roadbed layer filling is replaced, the road-bridge transition section bearing performance is greatly improved through rigid supporting of the anti-settlement mechanism box body and the anti-settlement mechanism buckling cover concrete block materials, and the uneven excessive settlement phenomenon, caused by vehicle running, of traditional road-bridge transition section roadbed layer filling is eliminated.

Description

technical field [0001] The invention belongs to the technical field of road-bridge transition section, and more specifically relates to a road-bridge transition section structure. Background technique [0002] The transition section is the section that needs special treatment when the roadbed is connected with structures, etc.; it is the key to the uneven settlement control of the roadbed. Due to the different stiffness of the two structures, a sudden change in the vertical stiffness of the track will be caused. Therefore, it is necessary to set a certain length of transition section between the roadbed and the bridge, so that the stiffness of the track changes gradually, and the settlement difference between the road and the bridge is minimized. [0003] The subgrade filling of the traditional road-bridge transition section has the following deficiencies: due to the filling itself, its resistance to compression deformation will gradually decrease over time, so after a long...

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Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a road-bridge transition section structure to solve the problem that the traditional road-bridge transition section subgrade filling soil due to its own factors, its compression resistance will gradually decrease with time, so after a long period of application, the The filling soil of the road base will be loose, which will lead to uneven and excessive settlement due to the driving of vehicles, and because of the rainwater infiltration factor, the filling soil of the road base will easily become soft due to the infiltration of rainwater, making it subject to external pressure. The problem of subsidence

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