Flue sheet structure for tunnel exhaust duct
A technology of exhaust duct and flue plate, which is applied in mine/tunnel ventilation, mining equipment, earth square drilling, etc., to achieve the effect of reducing long-term deflection and satisfying surface roughness
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[0024] Such as figure 1 As shown, a flue plate structure for a tunnel exhaust duct in this embodiment includes a plurality of prefabricated flue plates 100, which are successively spliced along the length of the tunnel. The cross section of the prefabricated flue plate 100 is Arched, prefabricated flue plate has a convex top surface 110, a concave bottom surface 120 and two butting end surfaces 130. The two butting end surfaces 130 are set back, and the convex top surface 110 and the concave bottom surface 120 are set between the two butting end surfaces 130. , The convex top surface 110 is above the concave bottom surface 120. Such as figure 2 with image 3 As shown, the joints between the two mating end surfaces 130 and the raised top surface 110 are formed with elongated notches 140. The adjacent prefabricated flue plates are butted through the butting end surfaces 130 and the notches 140, and the notches 140 are filled with cast-in-situ steel bars. Concrete 200.
[0025] ...
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