| 摘要 |
The present invention relates to an extensible supporting bolt, a supporting method and the use of the bolt. The rod 1, between its threaded part 13 and its second end 10, is surrounded by a tube 4 made of deformable material, the specific shape 10 of the second end of the rod has a diameter D which is greater than the internal diameter of the tube 4 made of deformable material, a collar 6 having a diameter which is greater than the external diameter of the tube 4 made of deformable material and firmly attached to the rod 1. Application to the supports for vaulted structures. <IMAGE>
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