Talking about the working principle, characteristics, performance and specifications of pipe joint anchor
The working principle, characteristics and performance and specifications of friction bolt:
1、 The working principle and characteristics of friction bolt
The friction bolt is a new type of anchor that fully anchors the rock and actively strengthens the surrounding rock, its three-dimensional part is a longitudinally slit high-strength steel pipe, when installed in a drill hole slightly smaller than the pipe diameter, it can immediately apply radial pressure to the hole wall and prevent the surrounding rock from sliding down, in addition, the supporting force of the bolt tray pallet makes the surrounding rock in a three-direction stress state. In the case of blasting vibration surrounding rock anchoring, etc., the anchoring force is obviously increased in the later stage, when the surrounding rock is significantly displaced, the bolt does not lose its support resistance, and it has better characteristics than the shell-type anchor.
2、 Main performance and specifications of friction bolt
Main technical performance
(1) Initial anchoring force: 3~7 tons;
(2) Pipe ring pull-off load: 8~10 tons;
(3) Anchor pipe anti-breaking capacity: 12~13 tons;
(4) Corrosion resistance is 20~30% higher than A3 steel, which is beneficial for long-term use.
Specification
(1) Outer diameter (mm): Φ30, Φ33, Φ40, Φ43 (±0.5)
(2) Length (mm): 1200, 1500, 1800, 2000, 2500(it can also be produced according to customer’s specifications)
(3) Material: 16Mn, 20Mnsi
The company has been engaged in the production and sales of mining support products for more than 20 years. During the years of support work, the company has accumulated strong customer resources or goods channels.If you are interested in the product, please contact us or leave a message.
Tel:+86-182 3676 6038 (Whatsapp)
E-mail: zxminesupport@zxsteelgroup.com
