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Help CenterFactory Custom Made Mine Shed Support
Related Products
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Introduction
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.
Structure
1.Top Beam
Top beam is circular arch, its amount depending on the cross section of roadway with different sizes, support force, transportation conditions, section 1 and section number.
2.Colum leg
There are three kinds of back leg , one kind is upside for circular arc form, for straight line at the bottom; The second is all for the curved shape, and only one radius of curvature; The third is all for the curved shape, but there are two curvature radius. Back leg in welding under the base, the base of large plate on the hard and soft;
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.
Main Parameter
Material:20mnk Q275
Detail parameter :
18U height:99mm thickness:10mmthory:18.96kg/m
25U height:110mm thickness:17mm Theoretic Weight :24.76kg/m
29U height:124mm thicness:16mm Theoretic Weight :29kg/m
36U height:138mm thicness:17mm Theoretic Weight :36kg/m
Mine support steel main characteristics: under pressure, support time, easy to install is not easy to deformation, etc.
Figure Photos
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