FIELD: construction.
SUBSTANCE: invention relates to the construction and reconstruction of railways for high-speed rail transport. High-speed main road bed contains the embankment body on which the layer of asphalt concrete is laid. Umbankment body contains two protective layers. One protective layer consists of a crushed stone-sand mixture with a deformation module of at least 80 MPa, and the second protective layer consists of a crushed stone-gravel-sand mixture with a deformation module of 120 MPa. Thickness of the first protective layer is 5.25–5.75 times greater than the thickness of the second protective layer.
EFFECT: increase in the reliability and durability of the operation of the ballastless upper track structure is achieved.
1 cl, 1 dwg
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