Construction method of stepped mortar-rubble-paved slope of ventilation embankment

Abstract

The invention relates to a construction method of a stepped mortar-rubble-paved slope of a ventilation embankment. The construction method includes: preparing construction, constructing a slope toe wall, performing rubble construction, paving geogrids, performing backfilling soil construction, paving reinforced steel bar meshes, performing mortar rubble construction, paving a clay layer, constructing a thermal-insulation layer and constructing a pavement structure. By the arrangement, the construction method has the advantages the overall stability of the embankment is enhanced greatly, the bearing capacity and strength of a road foundation are improved, and a slope surface is effectively prevented from being scoured by rain water; atmosphere cold energy can be prevented from being input into the soil of the slope, and the freezing depth and frost heave and thawing settlement beam of the slope are reduced; the cold storage capacity of the a base can be increased, and the stability of base frozen soil is maintained.

Description

technical field [0001] The invention relates to the technical field of step-type mortar rubble slope protection structure, in particular to a construction method for a step-type mortar rubble full pavement slope protection of ventilated embankment with thermal insulation effect in high-altitude severe cold and severe freezing regions. Background technique [0002] Due to the high ice content in the permafrost region, especially the high temperature and extremely unstable region, the thermal stability of the permafrost is poor, and the frost heaving and thawing are strong, which is prone to subsidence, deformation, cracking and other diseases of the subgrade slope. Therefore, it is very important to ensure the stability of subgrade slopes in permafrost regions. Under the existing technical and economic conditions, subgrade engineering built in permafrost regions will inevitably undergo certain deformations. [0003] There are many difficulties in the construction of the trad...

AI Technical Summary

Problems solved by technology

[0003] There are many difficulties in the construction of the traditional step-type mortar stone retaining wall and skeleton slope protection in the cold season, and it cannot adapt to the deformation caused by the freeze-thaw cycle

Due to the combination of reasons such as the thinness of the stones in the protection of the existing slope with step-type mortar masonry and the lack of drainage holes, severe repeated freezing and thawing, poor connection between the slope protection and the filling soil of the roadbed, the completed roadbed The protection of stepped mortar rubble pavement is often damaged, and the damage speed is fast, the repair work is large, and the repair work is relatively difficult

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