FIELD: construction.;SUBSTANCE: invention relates to mobile barriers on the basis of spirals from barbed tape intended for fast blocking of area section for military and other purposes. Unit of spirals for mobile barrier comprises three spirals of the same diametre from barbed tape, oriented relatively to each other in the form of triangular prism, besides neighbouring turns of each spiral are pairwise connected to each other in points evenly distributed along circumference of turn, and are arranged along single straight line along spiral length, back and front ends of spirals are rigidly connected accordingly to back and front frames, all turns of neighbouring spirals are pairwise connected to each other in points of their contact, and points of neighbouring spirals connection between each other and closest points of neighbouring turns connection in each separate spiral are distant from each other at the same distance. A fixing element in the form of traction rod, which is detachably connected by one end to front frame by means of split pin, and is detachably connected to back frame by means of split pin, is inserted into through hole of approximately triangular shape. Platform is also described for transportation of mobile barrier from unit of spirals.;EFFECT: reduced metal intensity, simplified design and expanded resources of its application.;2 cl, 3 dwg
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