Tensile expansive hollow grouting bolt structure
A grouting bolt and expansion technology, which is applied in the installation of bolts, infrastructure engineering, sheet pile walls, etc., can solve problems such as poor anchorage of bolts, improve pullout resistance, improve compactness, and inhibit continuous loosening. deformation effect
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[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0025] see figure 1 , the tensile expansion type hollow grouting bolt structure provided by the present invention will now be described. The tension-expandable hollow grouting bolt structure includes a hollow grouting rod body 1 and a lateral extrusion device 2. One end of the hollow grouting rod body 1 is provided with a rod body grout stop cap 4, and the other end is provided with an anchoring section. A diversion hole 7 is provided in the axial center of the grout rod body 1, and a grouting hole 8 communicating with the diversion hole 7 is provided in the radia...
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