| 摘要 |
FIELD: mining. SUBSTANCE: interframe guard 15 of grate tie rods 3 is installed on floors 14 before moving the sections of interim support 13 positioned over the width of working 11. For the purpose of this, first tie rods 3 are hung by hooks 10 from the second rod 6 of the installed earlier tie rod 3 on the floor 14. Then by moving sections 13, the hung tie rods 3 are revolved to the side of the roof with positioning them on floors 14 on completing the moving of the sections 13. On pushing apart the sections 13, tie rods 3 are pressed to the roof, and interconnection of lengthwise rods 4 and 5, 6 and 7 is carried out on the section of overlapping tie rods 3 to form the joint in the form of hinge (unit 1). Concurrently with tie rod 3 installation on floors 14 of sections 13 after moving, a frame of constant support is installed, which has cross bar 1 and props 2 connected by tie rods 3 installed in near-face space 12 of working 11 to form interframe guard 15. EFFECT: decreased time to install supports. 4 cl, 7 dwg |
