Pier with concrete-plate protecting snailish-flow

摘要

The present invention relates to a vortex defence of a pier that is not violated even by the floodwaters. Conventionally, in order to prevent magnetization, a method of digging soil around a pier and putting a stone in a wire mesh is mainly used.;However, the present invention lowers the conventional top of the concrete base in the underwater section in the newly constructed and rebuilt bridges by about 1 meter (17) below the lower bed (12), and instead replaces the underwater elliptical pier (2) smaller than the foundation concrete (Application No. 20). -2002-0014142) reduces the resistance and weakens the vortex (15) at the same time, so if the vortex defense concrete plate (6) is extended to the same height as the upper surface of the foundation concrete, the vortex (13, 15) is the vortex defense concrete It will provide a means to prevent the erosion of the piers due to vortices due to the roaming within the plate range.;In the case of applying to existing bridges, there is already a large diameter concrete in the underwater section, so if you reinforce the bottom of the lower bed with a wide vortex-defense concrete plate (36), the vortex will hover around the concrete plate and disappear. It also provides a means to prevent the erosion of the piers due to the eddy currents.