AIRFIELD LANDING STRIP Russian patent published in 2013 - IPC E01C9/00 

FIELD: construction.

SUBSTANCE: airfield landing strip comprising a natural soil base, a base from cement concrete, a reinforced concrete surface with upper and lower reinforcement, additionally comprises expansion strips at each side, the base of which is made of polymer concrete with thickness of not more than the thickness of the layer of the natural soil base compacted under the existing part of the landing strip. On the polymer concrete surface there is a layer of cement concrete with thickness of not more than the thickness of the cement concrete base of the existing part of the landing strip, at the same time the upper reinforcement of the reinforced concrete surface of the expansion strip is connected with the upper reinforcement of the reinforced concrete surface of the existing part of the landing strip, the lower reinforcement of the reinforced concrete surface of the expansion strip is connected with the longitudinal reinforcement rods of piles, installed vertically in the area of the expansion strip and at the angle of not less than the angle of natural slope of soil of the natural base near the edge of the existing part of the landing strip in direction of its axis.

EFFECT: improved safety conditions for take-off and landing of heavy aircrafts by provision of joint operation of a reinforced concrete surface of the existing part of the landing strip and an expansion strip, natural and artificial bases.

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