METHOD FOR FORMING INTERFACE BETWEEN BRIDGE ROADWAY AND EMBANKMENT Russian patent published in 2005 - IPC

FIELD: building, particularly bridge building.

SUBSTANCE: method involves compacting ground of embankment body and cones; forming drainage layers and water-draining chutes on coating; creating pad with variable rigidity decreasing in direction from bridge along embankment for length equal to approach slab length; arranging approach slab having upward gradient in bridge direction. Pad of embankment body is formed by creating cast-in-place piles along with surface compaction of upper cast-in-place pile parts and upper embankment layer, wherein transversal cast-in-place piles form strips having medium rigidity jointly with ground forming embankments. The medium rigidity is reduced from maximal value at bridge pier to minimal one at approach slab end opposite to bridge pier.

EFFECT: reduced embankment subsidence under approach slab due to decreased pad and draining material displacement in horizontal direction.

8 cl, 6 dwg