METHOD TO REINFORCE RAILROAD BED Russian patent published in 2011 - IPC E01B27/00 E01B37/00 E02D3/12 

FIELD: construction.

SUBSTANCE: invention may be used in construction and reconstruction of railway technical systems "earth bed - permanent way" (TS), highways, basements of structures and foundations, supports of manmade structures, power transmission lines and a a contact system at clayey soils under conditions of their overwetting and heaving. The method to reinforce a railroad bed consists in treatment of railroad bed soils with a reinforcing composition of a hydraulic binder, a mineral adsorbent and water with their subsequent compaction till full covering of ballast prism soil particles with a reinforcing composition. Treatment of earth bed soils with a reinforcing composition is carried out in the upper layer of a ballast prism. The reinforcing composition is taken in the amount of 8-12% from the ballast prism volume. A hydraulic binder in the reinforcing composition is brucite lime. A mineral adsorbent is brucite chaff.

EFFECT: increased period of TS stability during the whole normative time of its interrepair life, realisation of soil reinforcement process without removal of rail and sleeper grid.

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