Prestressing Steel Wire Factory Direct Sale

Strand Description:

Mining anchor cable is used in coal mine or other mines, shafts, perimeter rock plus circle, mine shaft to the form and parameters of anchor support according to conventional design, often can not be effective support, resulting in the overall collapse of the anchor support, bringing serious consequences. As the length of the steel hinged wire is not restricted, the anchor ring section can be anchored in the hard top plate, at the same time, because of the steel hinged wire strength level is higher, can provide a larger prestressing force, so that the anchor group section of the lower part of the composite roof joint one, forming a unified rigid roof, play a better support effect. Mining anchor cable structure generally consists of amplitude anchor head, anchor cable body and external anchor head three parts. The inner anchor head, also known as anchor section or anchor root, is the root of the anchor cable anchored in the rock body to provide prestressing, according to its structural form is divided into two major categories of mechanical and cemented, cemented is divided into two categories of mortar cemented and resin cemented, mortar is divided into the second grouting and a grouting type. External anchor head, also known as external anchorage section, is the anchor cable to provide tension tonnage and locking parts, the types of anchor plug type, threaded, reinforced concrete cylinder anchor pier type, pier head anchor type and steel frame type. Mining anchor cable is composed of steel strand, anchoring agent, tray, anchorage and other anchoring accessories, can be mechanically tensioned, the surrounding rock to exert active pressure of a device.

Specifications and parameters:

Mining anchor cable steel wire parameters:

1.anchorage static load anchorage performance ηa ≥ 0.95 εapu ≥ 2.0%

2.Fatigue load performance: meet 2 million times cycle load

3.Cyclic loading performance: to meet 50 times cyclic loading

4.Anchor pull-out force: Tw＞1.05Nt=157.5KN

How to use:

Drill a suitable hole according to the diameter and length of the anchor cable, remove the debris in the hole, put in the resin anchoring agent (the type and quantity of the resin anchoring agent is determined according to the design), push the resin anchoring agent to the bottom of the hole with the anchor cable, connect the end of the anchor cable with the connector of the anchor drilling rig, start the anchor drilling rig and stir the resin anchoring agent in accordance with the stipulated stirring time, and so on, when it is solidified, put on the pallets and anchorage, and pull it to the stipulated preload with the tensioner. After solidification, put on the pallet and anchorage, and use tensioner to pull it to the specified preload force.