A reinforcement structure and reinforcement method for shield tunneling in boulder strata to cross rivers
A technology for crossing rivers and reinforcing structures, which is applied in earthwork drilling, mining equipment, tunnels, etc. It can solve the problems of shield tunnel construction hazards, fast penetration of rich water, and low safety, so as to reduce irreversible damage and prevent river water backflow , the effect of shortening the reinforcement length
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[0026] The present invention is further described below in conjunction with accompanying drawing.
[0027] like figure 1 , 2 As shown, a reinforcement structure for shield tunneling across rivers in drifting pebble strata, including U-shaped trough box (1), U-shaped trough box (1) culvert bottom and inner side welded with channel steel keel (7), The U-shaped trough box (1) and the top of the shaped steel keel (7) are laid with section steel and walkway slabs to lay the work platform (5), and the culvert bottom of the U-shaped trough box (1) is welded with the reserved grouting pipeline perpendicular to the bottom of the trough ( 6), the water level monitoring device (3) is arranged on the reserved grouting pipeline (6), and steel wire mesh, geotechnical waterproof cloth and A soft isolation device (4) composed of colored strips of cloth.
[0028] The U-shaped groove box (1) is a processing and welding tool, which is welded by 5mm thick steel plate + 14 channel steel. The bo...
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