The invention discloses a double-lug-wall integrated open
cut tunnel structure. The structure comprises side walls and an arch part located at the upper ends of the two side walls, the arch part is ofa
reinforced concrete structure, the upper end of each side wall is provided with a lug wall, the lug walls are of a
reinforced concrete structure, backfill bodies are arranged in the areas between the arch part and the two lug walls, a bearing platform structure is arranged at the lower ends of the two side walls, the bearing platform structure and the side walls are integrally arranged, drilledpiles are distributed at the lower end of the bearing platform structure, the lower ends of the drilled piles extend into
bed rock, and the upper ends of the drilled piles and the bearing platform structure are integrally arranged. The double-lug-wall integrated open
cut tunnel structure uses a
pile foundation and bearing platform integrated open
cut tunnel structure, so that the problem that a structure foundation is suspended can be effectively solved, the structure can be better adapted to complex terrains, the
impact load of dangerous rock falling can be effectively resisted, the stress effect is better, the construction difficulty is effectively reduced, the structure is simple and light, and the
engineering cost can be effectively saved.