| 摘要 |
FIELD: bridge building, particularly to protect bridge piers built on rivers with seasonal ice-movement and having changeable water stream level. ^ SUBSTANCE: pier has support body, pile cluster with high foundation mat and ice-protective shells having shape mating to that of foundation mat panel. Ice-protection shells are located within area defined by extreme water levels and moving ice levels. Low edge of foundation mat panel is located above the highest moving ice level. Each pile is enclosed by separate ice-protective shell. Space between pile and shell is filled with concrete. Shells are connected by cross-bars along foundation mat perimeter and along the shortest diagonal line. Ice-protective shells located in obtuse angles of diamond-shaped foundation mat are brought together so that distance between tangent lines drawn to outer edges of ice-protective shells located in obtuse and acute angles of diamond-shaped foundation mat is not equal to 0. ^ EFFECT: reduced material consumption, increased operational reliability and service life of bridge pier. ^ 3 dwg |
