Factory Construction Rron Bar Price HRB335/ Hrb400 /Hrb500 Deformed Steel Bar For Building/Concrete/Construction Rron Bar

一、Application

Longitudinal ribless rebar resin anchors are mainly used for high strength support of large deformation roadways in high pressure mines, including full rocky roadways, coal roadways, semi-coal roadways, and can also be used for high-strength permanent roadway support of railroads, highways, hydropower and other types of projects.

二、Product Features

This product is a kind of anchor made by special processing technology, the strength of the threaded section is greater than the strength of the rod body, and the bending and shear resistance is good, it is a new type of anchor for high strength support in shafts. It is a new type of anchor for high strength support of shafts. It has reasonable structure, large preload, can automatically adjust the direction of force, increase the binding force on the surrounding rock, and can be mechanized and installed quickly, and can be used as end anchors, extension anchors and full anchors. It is easy to transport, anti-corrosion and anti-rust, and has a wide range of applications.

三、 Product selection and working conditions

1, product selection: support designers according to the roadway section of the surrounding rock geological conditions to detect the surrounding rock to pressure parameters, and then combined with practical experience, can choose different specifications of the anchor.

2、Using working conditions: Users should have drilling and installation equipment, resin anchors and so on. In order to increase the effect of support, after the installation of anchor rods, plus the installation of anchor net anchor cable and slurry. The drilling size and depth should be used according to the specifications of anchor rods and anchoring agents; considering the power conditions of the site, it is recommended to prioritize the use of pneumatic anchor drilling rigs or hydraulic anchor drilling rigs so that the drilling and installation are carried out in the same machine: for the use of high rock hardness site selection of the 7655 wind hammer drilling, pneumatic coal drilling and stirring installation. Stirring installation of rated output speed ≥ 400 rpm output torque, for the full-length anchoring should be 2 60Nm; for end anchoring should be 240Nm machine.

四、Structural features and working principle

1, structural features: each set of non-longitudinal aid threaded steel type resin anchor by the metal rod body (rod end of a section of 80 ~ 120mm thread) with a thickened hexagonal nut, an anchor tray.

2, working principle: anchor is anchored in the rock body to maintain the stability of the surrounding rock rod-like structure, in the surrounding rock to play the role of suspension, combination of beams, combination of arches, wedge and so on. In the installation process, the resin anchor metal rod body plays the role of mixer, the rod body through the anchor drilling rig rotation into the hole has been punched, will be placed in advance of the hole end of the resin anchoring agent pounding broken, so that the resin cement and curing agent mixed with a chemical reaction, the resin cement is quickly cured, the rock and the anchor rod bonded together, to play the role of anchoring. A certain number of anchors are driven in the same piece of surrounding rock to form an anchor support system.

Product description

The longitudinal ribless threaded steel resin anchor executes MT146.2-2011 standard. It is a kind of anchor made by special processing technology, the strength of threaded section is greater than the strength of the rod body, the threaded section has good performance of bending and shearing, it is a new type of anchor for high strength support of shaft.

The anchor has high strength, reasonable structure, large tightening force, can automatically adjust the direction of force, increase the binding force on the rock can realize the mechanization of rapid installation. It can be used as end anchor, extension anchor and full anchor, and is mainly used for high strength support of large deformation roadway in highland pressure mines. Application:Coal mine roadway support, but also can be used for railroads, hydropower and other types of engineering high-strength permanent roadway support.

Usage:

1. Determine the anchor hole position according to the design requirements and drill the hole with drilling rig.

2. Use the pressurized air pipe to go deep into the bottom of the hole and blow clean the rock dust.

3. Send the anchoring agent into the bottom of the hole, set it with the anchor to start mixing (mixing time is specified according to the model of the anchoring agent), mixing is finished, unload the mixing apparatus to reach the waiting cooling time, unload the mixing connecting head to install the anchor plate, ball washer friction washer, and tighten the nut with a special wrench.

Anchor characteristics:

1. superficially it restricts the rock and soil body from the original body.

2. Macroscopically it increases the cohesion of the rock and soil body.

3. Anchor rods are not only used in mines, but also used in engineering technology for active reinforcement of slopes, tunnels, dams and so on.

4. Anchor is the basic component of tunnel support in contemporary underground mining, which binds the perimeter rock of the tunnel together, so that the perimeter rock supports itself.