FORMATION AND COMPACTION METHOD OF BALLAST SECTION OF RAILWAY Russian patent published in 2015 - IPC E01B27/02 E01B27/06 

FIELD: construction.

SUBSTANCE: for formation and compaction of a ballast section, ballast is fully cut out with its further cleaning and backfilling of the bottom layer that is levelled and compacted. An upper crushed stone layer is backfilled onto the bottom layer and compacted. The lower crushed stone layer is backfilled to the thickness of 0.7H<H₁≤0.85H. The upper layer is backfilled to the thickness of H₂=(1.2÷1.25)H-H₁, where H - ballast cut-out depth below a sleeper bed level. After each layer is laid, compaction is performed with series action of a liner-tamper-surfacer of continuous action, a liner-tamper-planisher and a dynamic stabiliser.

EFFECT: improving compaction quality of a ballast section when performing rehabilitation and repair of a railway with crushed stone cleaning.

2 cl, 2 dwg