| 摘要 |
FIELD: mining. ^ SUBSTANCE: friction tubular anchor contains swelling tube. The latter is connected to sleeve and at that sleeve-shaped coupling is provided; at that, sleeve connected to swelling tube is inserted into sleeve-shaped coupling. Besides, sleeve-shaped coupling has the possibility of receiving the other structural member in its section that lies opposite to the section that receives the sleeve with swelling tube. ^ EFFECT: enlarging application capabilities of friction tubular anchors. ^ 45 cl, 27 dwg |
