As a substitute for the miners steel bracket u steel arch, also is the market development needs, along with the development of the coal, mineral industry, coal is becoming more and more deep, the pressure also more and more big, hard to support the miners steel bracket support demand gradually cannot satisfy the deep coal seam, U steel shed support has emerged.

As a kind of passive support, u steel arch compared with miners steel stent has good mechanical properties, high tensile strength, compressive strength, good toughness properties at the same time, the early supporting force is higher, the supporting intensity big, can be used many times, U steel arches are widely used in mine roadway, especially in deep roadway and complex soft coal seam roadway, U steel arch is an effective and rational support form.

Two products using the same material, supporting performance due to the shape of the different difference, consists of the following structure: u steel arch top beam and column legs, fittings, frame between the pull rod, the backing material. Among them, there are three forms of column legs. One is that the upper part is a circular arc and the lower part is a straight section. The second is that they are all curved and have only one radius of curvature. The third is all curved, but with two radius of curvature.

The bottom of the column leg is welded with a base, which is determined by the size of the base plate.

The top beam is an arc arch, and its quantity depends on the size of the tunnel section, the force on the support and the transportation conditions.

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 steel between friction, thus ensuring that the arch has certain resistance and certain drop-off.

If you are interested in the product, please contact us or leave a message

Tel:+86-182 3676 6038 (WeChat)

E-mail: zxminesupport@zxsteelgroup.com