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Qinghai A'yangnang Tunnel

Information：

Tunnel Full Length: 1780m

Clear Height: 5m

Clear Width: 9m

Road Grade: Level Three

Design Speed: 40km/h

Basic Seismic Intensity: 7 degrees

Elevation: 3500~3700m

Materials：

Steel Bonding Adhesive

Crack Seal Adhesive

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CASE BACKGROUND

Reinforcement Reasons: Cracking and leakage of lining, tunnel intrusion, uneven foundation settlement.

Reinforcement Methods: Steel plate bonding reinforcement, grouting reinforcement at the tunnel bottom, reinforcement with arch foot steel pipe piles, etc.

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