Supply pipe seam anchor bolt, pipe seam anchor bolt model

Description :

　　Specification of pipe seam anchor rod

　　(1) Outer diameter (mm): Φ 30, Φ 33, Φ 40, Φ 43 (± 0.5)

　　(2) Length (millimeters): 1200, 1500, 1800, 2000, 2500 (can also be produced according to customer specifications);

　　(3) Material: 16Mn, 20 Mnsi;

　　zmjt055

　　Introduction to Pipe Seam Anchor Rod Products

　　Pipe seam anchor rod is a new type of anchor rod that actively strengthens the surrounding rock by anchoring the entire length. Its three-dimensional part is a high-strength steel pipe with a longitudinal seam. When installed in a borehole slightly smaller than the diameter, it can immediately apply radial pressure to the borehole wall and prevent the sliding friction force of the surrounding rock within the entire length range, combined with the support force of the anchor rod tray, so as to put the surrounding rock in a three-dimensional stress state and achieve rock stability. In the case of blasting vibration and rock anchoring displacement, the anchoring force increases significantly in the later stage. When the rock undergoes significant displacement, the anchor rod does not lose its supporting resistance, and it has better characteristics than the expansion shell anchor rod.

　　Main technical performance of pipe seam anchor rod

　　(1) Initial anchoring force: 3-7 tons;

　　(2) Pipe ring pull-out load: 8-10 tons;

　　(3) Anchor rod pipe tensile strength: 12-13 tons;

　　(4) The corrosion resistance is 20-30% higher than A3 steel, which is conducive to long-term use.

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• Pipe seam anchor rod