River bottom protection device - consists of mat installed with weirs and ballast

摘要

The bottom protection device is for use in flowing waters. It consists of a base mat (12), placed on the river bottom, with a weir step (14) on the front section, in flow direction. An anti-erosion protection (18) is located on the weir and free mat section (16). The mat has connected ballast tubes (20,22,24). The mat consists of close meshed fabric, and the tubes are formed by folded parts of the mat. USE - Protection of area on bottom of fast-flowing river.