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Mining Anchor Cable

Mining Anchor Cable
Click:  Update:2016-12-12 10:22:52  【Print】  【Close

Composed of steel strand, anchorage and other accessories. Steel strand is twisted by a plurality of steel wire strand shaped prestressed steel beam; anchorage is keep prestressed steel strand tension and will pass it on to a reinforced layer with the permanent anchor device.

Technical parameters

1, mining cable anchor supporting the use of resin anchoring agent meets the MT146.2 - 2011 standards, the anchor cable to meet the standard requirements of the GB/T14370-2007, and in standard within the period of validity, steel hinge line meet the standard of carbon steel rods carbon structural requirements.

2, the anchor of the static load anchoring performance meet the following two requirements:

Within a = 0.95, Pu = 2% epsilon ETA a anchorage efficiency coefficient, epsilon Pu is the total strain limit tensile stress when the length of the assembly.

1.05 times 3, anchor pullout force Tw should not be less than the design bearing Nt Tw cable, not less than 1.05Nt.

 

Tensile strength of steel strandMPa

1860

1770

1860

Steel wire diameter   mm

15.2

17.8

21.8

21.8

Not less thankN

164

224

349

366

Not less than the bearing capacity of   plate  kN

234

320

490

524

Strand structure

1×7

1×19

Note: steel strand: 15.2mm, 17.8mm, tensile strength 1860MPa, tensile strength 21.8mm, tensile strength 1770Mpa, 1860MPa.

4, pallet size not less than 150 * 150mm butterfly, thickness is equal to or larger than 15mm, center aperture than the steel strand with a large nominal diameter of 2 ~ 4mm, carrying force is more than or equal to 1.5 times of the cable design capacity.