china coal0001
U-channel Tunnel Steel Support
Keywords: U-channel Steel Support, Tunnel Steel Support, Steel Support For Sale
Introduction of U-channel Steel Support For Coal Mine
U channel steel support cross section is shaped like the letter "U" in English. National production of u-shape cross-section shape, geometric parameters and material is different, at present China''''s production of u-shape model mainly include stepping, U25, U29, U36 these four. The stepping and U25 waist position; U29, U36 belongs to the ear. Stepping up the carrying capacity is very low, now rarely production.
U channel steel support with high initial supporting force, supporting intensity big, easy to install and is not easy to deformation, so often used in the manufacture of roadway yielding metal stents, mine, mine roadway secondary supporting of roadway, and mountain tunnel support support purposes
Use, effectively reduce the roof caving u-shape set, help such as accidents, safe and reliable, and enhances the stability of the mine ventilation system. Choose u-shape flexible support, better solved the difficult problem of the excavation support
Structure of U-channel Steel Support For Coal Mine
3.Connection parts
Fitting is a support section and internode card device, can the internode connection effect, can also be connected the two compression steel joint parts, provide pre-tightening force, make the u-shape between friction, thereby ensuring that the arch has a certain resistance and certain drop-off.
4.Rod between support
Rod between support is to enhance the relative stability, the support bracket from longitudinal connection, form a whole.
5.Back-up material
Back-up material is u-shaped steel support between supports and surrounding rock filling material, the purpose is to make contact with the surrounding rock u-shape set close together, improve the stress of the support, to improve the bearing capacity and maintain the stability of surrounding rock.
Characteristic of U-channel Steel Support For Coal Mine
1,Stand high pressure , support long time, easy to installation and not easy to be out of shape
2,compared with other rigid support , U-shaped steel support has a scalable and reliable carrying capacity to adapt to load and deformation of soft rock.
3,U-shaped steel support bracket support cross back high utilization convenient small amount of maintenance.
4,U3 steel support recycling reuse rate, reduce prop use, very obvious environmental benefits.
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Buyer: Hardwood and softwood logs usa and canada
souther yellow pine logs, eastern white pine logs
walnut logs, red oak logs, cherry logs, african teak logs & various other specie
lumber sd and kd, syp lumber , ewp lumber
lumber : ashwood ,redoak, white oak ,walnut sawn timber hardwood : red merantiwood malaysia
european hardwood, beechwood,ashwood,red oak ,white oak , whitewood : ad ast, kd ,kd s4s white wood and wood pallets
austrian whitewood, bosnian whitewood, romanian whitewood, usa pine wood brazil whitewood
plywood :china ,malaysia,indonesia ,vietnam commercial plywood, veneer plywood ,melamine plywood, hpl plywood
mdf: china ,thailand ,malaysia
plain mdf ,melamine mdf , veneer mdf , high glossy mdf , film faced plywood (marine plywood): china,india,vietnam
shuttering plywood
solid chipboard, particular board and osb board
doors and frames
