PREFABRICATED SHIELD FOR COAST DAM IN FLOOD

摘要

FIELD: construction.;SUBSTANCE: prefabricated shield for coast dam in floods comprises the coast dam with the possibility to bar the main channel of the river. The coast dam consists of three parts: two identical parts are located on the banks of the river, along its main channel, and the third part, the main one, rigidly connects said two parts perpendicular to the main river channel. The main part of the coast dam consists of two oppositely arranged permanent shields made of rectangular shape and are rigidly connected to the dam parts located on the river banks, and the central rectangular prefabricated shield is arranged in the aperture formed by the permanent shields and is movably connected by means of guides, e.g. of the "tongue and groove" type, with the permanent shields and fixed thereon by means of the locking mechanism made, e.g., in the form of spring-loaded movable pins, the body of which is fixed in the permanent shields, and on the prefabricated shield openings for fixing the movable pins are made. The fixation mechanism of the prefabricated shield is made with the automatic drive controlled from the control unit located in the control room arranged in the coast dam. Video cameras to control the erection of the pre-fabricated shield are fixed on the permanent shields. The prefabricated shield is installed before the flood start in the river by means of lifting devices or a helicopter so that the aperture with the "H" height for small vessels passage remains till the flood start. The control of erecting the prefabricated shield is carried out from the command post located in the control room.;EFFECT: increased efficiency of measures to prevent the flood consequences.;4 cl, 1 dwg