| 摘要 |
Device for fixing and sealing coverings for tunnels, in which is coupled a laminar material with butt joints by means of suspension on rock bolts anchored in holes in the rocks of the roof and walls of the tunnel. The laminar material is coupled onto an exterior support element connected to a series of bolts anchored in the rocks and in such a manner that said laminar material is supported at each transverse joint by an interior support element preferably consisting of two parallel bars, being supported by plates on the bolts. The exterior support elements, facing the rock, comprise support means on each side of the joint, the support elements being fixed with transverse plates on each bolt. A sealing strip extends along the joints, being arranged between the laminar material and the external support means. <IMAGE>
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