Highway tunnel fireproofing device with double-layer air sandwich rectangle
A technology for fire protection devices and highway tunnels, applied in tunnels, tunnel linings, fire prevention and other directions, can solve the problems of increasing the operating cost of highway tunnels, damage to the fire shutter structure, and large lateral wind pressure peaks, shortening the construction period, Good decoration, easy to disassemble and replace
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[0022] Such as figure 1 , figure 2 As shown, a double-layer air-sandwich rectangular highway tunnel fire protection device mainly includes tunnel segments 1, fire protection device 2, outer layer member 2-1, inner layer member 2-2, reserved hole 2-3, and outer layer member Protrusions 2-4, inner member protrusions 2-5, air sandwich layer 3, roadbed 4, bolts 5, the fire prevention device 2, which includes outer member 2-1, inner member 2-2, reserved Holes 2-3, outer member protrusions 2-4, inner member protrusions 2-5, air sandwich layer 3 and other components, outer member 2-1 and inner member 2-2 pass through outer member 2 -4 is assembled with the protrusion 2-5 of the inner member. When assembling the tunnel segment 1 and the fire protection device 2, the upper part of the fire protection device 2 is fixedly connected to the tunnel segment 1 through the reserved hole 2-3, and the lower part of the fire protection device 2 Directly buried under the roadbed 4.
[0023] Such as...
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