Stranded Rope For Coal Mining
Product Advantages:
Reverse grouting is used to fill the borehole with slurry, which is a simple process.
The strand is processed by pre-stressing spiral ribs, and the test shows that the anchor cable made of pre-stressing spiral ribbed steel wires has a greatly increased anchorage force than that of the anchor cable made of the same diameter of smooth stranded steel wires cut into the same diameter.
active support for self-control of the surrounding rock by anchoring and cementing the surrounding rock to achieve an increase in the strength of the new rock mass of about 40%.
Product Details
The structure of mining anchor cable is generally composed of three parts: amplitude anchor head, anchor body and outer anchor head. 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.
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
Product Description
Mining anchor cable is used in coal mines or other mines, shafts and alleys, perimeter rock plus circle, mine shafts 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 on the hard roof plate, at the same time, due to the high strength level of the steel hinged wire, it can provide a larger prestressing force, so that the anchor group section of the lower part of the composite roof plate united as a whole, to form a unified rigid roof, to play a better support effect.
Structural features:
The anchor is drilled through the weak rock layer or sliding surface, anchored at one end in the hard rock layer, and then anchored at the other end in the hard rock layer, and then anchored at the other end in the hard rock layer.
The other free end is then tensioned to exert pressure on the rock layer to anchor the unstable rock. Anchor: According to the anchoring method, the anchor should be anchored in the hard rock layer.
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.
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