Subgrade settlement test platform for road and bridge transition section

Abstract

The invention discloses a subgrade settlement test platform for a road and bridge transition section, and relates to the technical field of road construction. The subgrade settlement test platform for the road and bridge transition section comprises a test base cylinder, the lower side of the test base cylinder is fixedly connected with a bottom plate, the lower side of the bottom plate is provided with a group of anti-seismic test devices, the anti-seismic test devices comprise connecting plates, the connecting plates are circular plates, a fixed pyramid is arranged at the center of the upper part of the connecting plate, the fixed pyramid is a rectangular pyramid, a group of pyramid grooves are formed in the lower side of the bottom plate, the pyramid grooves are rectangular pyramid-shaped grooves, and each fixed pyramid is matched with the corresponding pyramid groove. According to the subgrade settlement test platform for the road and bridge transition section, an anti-seismic test device is used for testing the influence on the roadbed when a vehicle passes through the road and bridge road section and vibrates, so that the method to be used for construction is determined according to the influence of vibration on subgrade settlement.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a subgrade settlement test platform for a road-bridge transition section. Background technique [0002] The road-bridge transition section is often a high-incidence area of ​​road junctions. Under the load of the road, the foundation soil is vertically deformed or subsides due to compression, resulting in uneven road surface, which in turn leads to car jumping at the bridge head. Vehicle jumping is a phenomenon that vehicles jump when passing due to the differential settlement at the road bridge head and expansion joint (bridge head approach road) or the damage of expansion joints, resulting in steps on the longitudinal slope of the road surface. Uniform settlement is generally less harmful to buildings, but when it is too large, it will also reduce the elevation of the building and affect the use; uneven settlement is more harmful to buildings, which will cause additio...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a subgrade settlement test platform for the transitional section of the road and bridge, so as to solve the above-mentioned background technology, when construction is carried out, it is often necessary to carry out construction on the subgrade, but it is often unknown to build the subgrade directly on the ground. How deep the foundation needs to be built for local geological calculations, the shallow foundation cannot support the subgrade, and the deep foundation wastes materials. For this reason, we propose a subgrade settlement test platform for the transitional section of the road and bridge

Images