Henan Zhongxiang Materials Trading Co

Sectional steel has the advantages of high initial support force, high support strength
, easy installation, and not easy to deform
. Therefore, it is often used to manufacture tunnel collapsible metal supports for mine tunnels and mine tunnels. It is used for secondary support and support of mountain tunnels. The steel telescopic bracket is mainly composed of the following parts: beam. The top beam is arc-shaped, and its number can be divided into sections or multiple sections depending on the size of the tunnel section, the stress on the bracket, and the transportation conditions.
Legs. There are three types of column legs. One is that the upper part is arc-shaped and the lower part is a straight segment. The second is that they are all curved and have only one radius of curvature. The third is that they are all curved but have two radii of curvature. A base is welded under the column legs, and the size of the base depends on the softness and hardness of the base plate
Connectors. The connector is a clamping device between the bracket sections. It can connect the sections. It can also compress the joints of the two connected sections of steel to provide pre-tightening force so that there is friction between the section steels, thereby ensuring that the arch The shaped bracket has a certain working resistance and a certain shrinkage.
Between tie rods. The function of the tie rods between the racks is to enhance the overall relative stability of the brackets and connect the brackets longitudinally to form a whole.
Lining material. The backing material is the filling material between the steel bracket and the surrounding rock. The purpose is to make the steel bracket and the surrounding rock in close contact, improve the stress condition of the bracket, increase its load-bearing capacity and maintain the stability of the surrounding rock.
The profiled steel supports must be reasonably calculated during design and should also be used reasonably in order to ensure safe production in mines and improve economic benefits.
Profile steel bracket, profile shed bracket, bow shed bracket, mining profile steel bracket
Profile steel bracket specifications Profile steel bracket, profile steel bracket, profile steel bracket
The main purpose of profile steel bracket is mainly used in mine tunnels and mine tunnels It is used for secondary support and support of mountain tunnels.
The main features of the bracket are that it can withstand large pressure, support for a long time, and is not easily deformed.
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