Connection method between steel arch units for tunnel support
A connection method and unit connection technology, used in tunnels, earth-moving drilling, tunnel lining and other directions, can solve the problems of difficult processing, strange shape of the bottom arch unit end, not conducive to improving the construction progress, etc., to speed up the construction progress, Fast and reliable installation, increasing the effect of construction procedures
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[0013] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0014] Such as figure 1 , 2 As shown, in the connection method between the steel arch units for tunnel support of the present invention, the upper steel arch unit 8 ends are welded with the upper connecting steel plate 3 with bolt holes, and the connection parts of the tunnel steel arch units are arranged along the axis of the tunnel. The H-shaped steel joist 1, the bolt hole is opened on the top flange of the H-shaped steel joist 1, and the bolt hole on the top flange of the H-shaped steel joist 1 is welded to the bolt hole at the end of the upper steel arch unit 8 through the top bolt 6 The upper connecting steel plate 3 is connected, so that the H-shaped steel joist 1 is connected with the upper steel arch unit 8, and the web plate at the end of the upper steel arch unit 8 is welded with the first stiffening angle steel 7, and the first stif...
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