ANTIICING DEVICE FOR HYDRAULIC STRUCTURE LOCATED ON SHALLOW CONTINENTAL SHELF

FIELD: construction.SUBSTANCE: antiicing device for a hydraulic structure located on a shallow continental shelf includes protective elements 2 and fastening elements attaching the protective elements to water area bottom. Protective elements 2 are made in the form of submersible many-sided pontoons with possibility of their being filled with ballast material, one end face is provided with an inclined section and equipped with deflector 3 in its upper part, and the other, at least two end faces are vertical, along which pontoons are attached to each other. Pontoons form closed structure 4 in the form of a polygon in a plan view with two front walls 12 forming an ice-cutting wedge along its central axis, with two side walls 13 and rear wall 14 with possibility of its being disconnected. Each pontoon is installed with its end face with the inclined section and deflector 3 outwards, thus forming closed extended deflector 3 and an inclined surface, which envelop the whole structure along external perimeter. Two front walls 12 are made at least of two pontoons in the form of symmetrical polygons elongated in a longitudinal direction and provided at least with four side faces. Side walls 13 and rear wall 14 are made of pontoons in the form of polygons at least with three side faces. Side wall 13 is tightly attached with its end surfaces to vertical surfaces of front 12 and rear 14 walls. Fastening elements are made in the form of hollow piles and installed throughout the height of pontoons of front 12 and side 13 walls into the corresponding through holes 5.EFFECT: improving protection efficiency of a hydraulic structure against ice and simplifying the device design.9 cl, 13 dwg Устройство противоледовой защиты для гидротехнического сооружения, расположенного на мелководном континентальном шельфе, включает защитные элементы 2 и закрепляющие элементы, соединяющие защитные элементы с дном акватории. Защитные элементы 2 выполнены в виде погружных многогранных понтонов с возможностью их заполнения балластировочным материалом, одна грань которых выполнена с наклонным участком и снабжена дефлектором 3 в верхней части, а другие, как минимум, две грани вертикальные, по которым понтоны состыкованы друг с другом. Понтоны образуют замкнутую конструкцию 4 в виде многоугольника в плане с двумя передними стенками 12, образующими ледорезный клин по ее центральной оси, с двумя боковыми стенками 13 и задней стенкой 14 с возможностью ее размыкания. Каждый понтон установлен гранью