ASEISMIC SOIL DAM BUILT IN NARROW CROSS SECTIONS Russian patent published in 2015 - IPC E02B7/06 E02B7/52 

FIELD: construction.

SUBSTANCE: invention relates to hydrotechnical construction, namely to soil dams built in areas with high seismicity. The invention is aimed at the reduction of cost of the structure and increase of the damping ability of the seismoisolating dam layer. The aseismic soil dam built in narrow cross sections includes the main soil part of the dam body and the seismoisolating layer with dynamic characteristics significantly differing from those of the soil of the main part of the dam body. The seismoisolating layer is located along the whole contact of the dam with the base and boards of the cross section (canyon). The seismoisolating layer is formed by the installation into this layer of inclusions in the form of similar utilised metal-cord tyres from cars, which cavities are filled with gumbrine. The tyres are arranged parallel to the base and boards of the cross section (canyon) with an equal step chequerwiseboth in the same row, and between rows, the quantity of which is no less than two.

EFFECT: design features of the offered design of the seismoisolating layer allow weakening more effectively seismic waves at the expense of an increased damping and diffraction ability.

2 dwg