TUNNEL TYPE BRIDGE Russian patent published in 1994 - IPC

FIELD: construction. SUBSTANCE: tunnel type bridge comprises approach embankments, span, abutments made as retaining walls resting on a high pilework slab, and a protection screen. Each protection screen is made in the form of a L-shaped member having its horizontal member resting on the pilework slab and hinged to the lower section of the retaining wall. The screen is provided with a flexible pull member hinged to the upper retaining wall section, and with an additional flexible pull member hinged to the retaining wall middle section and oriented parallel to the primal pull member. EFFECT: improved design. 2 cl, 1 dwg