Roadbed structure based on polyurethane cured waste slurry material

Abstract

The invention relates to a roadbed structure based on a polyurethane cured waste slurry material. The roadbed structure comprises a roadbed, wherein an upper embankment, a lower embankment and a foundation are sequentially arranged below the roadbed from top to bottom; slate plates are symmetrically arranged on the two sides of the roadbed, the slate plates penetrate through the upper embankment and the lower embankment in the vertical direction correspondingly, and the bottom ends of the slate plates are embedded in the foundation; and inclined plates are symmetrically arranged on two sides of the upper embankment, connecting plates are arranged between the inclined plates, and the roadbed, the upper embankment and the lower embankment are formed by pouring the polyurethane cured waste slurry material. According to the roadbed structure based on the polyurethane cured waste slurry material, the two sides of the roadbed can be prevented from collapsing and shifting outwards in the use process of the roadbed, so that the firmness of the roadbed is improved, the service life of the roadbed is prolonged, and the safety performance of a road surface is improved; and meanwhile, the roadbed structure can be constructed by utilizing the construction waste, so that the use of soil resources is reduced.

Description

【Technical field】 [0001] The invention relates to a roadbed structure, in particular to a roadbed structure based on polyurethane solidified waste mud materials, and belongs to the technical field of roadbeds. 【Background technique】 [0002] The subgrade is the foundation of the track or road surface, and it is a geotechnical structure formed after excavation or filling. The main function of the subgrade is to provide the necessary conditions for the laying of the track or road surface and the operation of trains or trains, and to bear the static and dynamic loads of the track and rolling stock or the road surface and traffic loads, and at the same time transfer and spread the load to the depth of the foundation. On the longitudinal section, the roadbed must ensure the elevation required by the line; on the plane, the roadbed is connected with bridges and tunnels to form a complete and continuous line. In civil engineering, subgrade plays an important role in terms of const...

AI Technical Summary

Problems solved by technology

[0003] However, the existing roadbed construction may have defects such as relatively poor firmness and relatively low safety performance of the road. Due to the rolling of vehicles on the road, the sides of the embankment tend to move sideways or even collapse, resulting in damage to the road surface , reduce the service life of the subgrade structure

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