Subgrade structure

Abstract

The invention discloses a roadbed structure which comprises a road surface and a guard board, wherein slope excavation surfaces are arranged on two sides of the road surface and are inclined outwards, and the inclination angle of each slope excavation surface is in a range from 30 degrees to 45 degrees; a gabion cage is arranged between the two slope excavation surfaces; two ends of the guard board are fixedly connected with the slope excavation surfaces, and the guard board is located on the gabion cage; more than one air pipe is vertically mounted on the lower surface of the guard board, tops of the air pipes are connected with the guard board, and bottoms of the air pipes are fixed on the inner bottom surface of the gabion cage; drainage channels are mounted in the positions, close to two sides, of the lower surface of the gabion cage, tops of the drainage channels are communicated and connected with the gabion cage, and bottoms of the drainage channels are located on a bearing board, penetrate through the bearing board and are flush with the lower surface of the bearing board. The roadbed structure can ensure that a roadbed under the road surface is stable and non-deformable, meanwhile, water drainage and resistance are facilitated, embankment water can be rapidly drained from multiple layers, and the problems of frost heaving, thaw settlement and frost boiling of the road surface are effectively solved.

Description

technical field [0001] The invention relates to a civil construction facility, in particular to a roadbed structure. Background technique [0002] In the construction of roads in mountainous areas, most roads have to be built on winding mountains, and some projects have steep slopes on both sides. Usually, a large amount of slope excavation is required to form a roadbed to lay the road surface. If there is heavy traffic equipment passing through or washed by heavy rain, it is very easy to landslide and collapse, causing damage to road facilities, causing great safety hazards to driving, and possibly causing traffic accidents. Therefore, in order to solve this series of problems, it is necessary to build a subgrade structure that is suitable for slopes that are close to vertical, and has higher requirements for the bearing capacity of the foundation, and better drainage facilities should be added to keep the side ditches smooth and improve the compactness of the road surface....

AI Technical Summary

Problems solved by technology

[0002] In the construction of roads in mountainous areas, most roads have to be built on winding mountains, and some projects have steep slopes on both sides. Usually, a large amount of slope excavation is required to form a roadbed to lay the road surface. If there is heavy traffic equipment passing through, or it is washed by heavy rain, it is very easy to landslide and collapse, causing damage to road facilities, causing great safety hazards to driving, and may also cause traffic accidents

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