Equal Strength Threaded Anchors Rods
Product benefits:
1. affordable and easy shape, it is the substitute made from anti-twist anchors
2. anchor complete thread equal strength, than the same specifications of anti-twist anchor bearing capacity
Growth 40%.
3. expanding the use variety of anchor, can recognize stop anchor and complete anchor.
4. low rate, widely used in coal mines, railroads, hydropower and different forms of engineering roadway support.
Equal Strength Threaded Anchor Rod has the following advantages:
High strength: Strength threaded bolts are made of high quality materials with high strength and good bearing capacity. It can withstand large tensile forces and shear forces to ensure the stability and safety of the structure.
Durability: Strength threaded bolt surface after special treatment, has good corrosion resistance and fatigue resistance. It can be used in harsh environments and maintain a long service life.
Easy installation: The installation process of strength thread bolt is simple and fast. Only drilling, grouting and fastening are required to complete the installation, without complex processes and equipment.
Versatility: Strength threaded bolt can be used in various civil engineering, construction engineering and geological disaster control engineering, such as foundation reinforcement, rock support, tunnel lining, protective wall and so on. It is suitable for many different geological conditions and engineering requirements.
Excellent seismic performance: Due to its high strength and stability, strength threaded anchor can effectively absorb and disperse seismic energy when an earthquake occurs, reducing the destructive impact of earthquakes on the structure.
In short, strength threaded bolt has the advantages of high strength, durability, easy installation, versatility and excellent seismic performance, and is an important material commonly used in civil engineering and building engineering.
Equal Strength Threaded Anchor Rod | Material | HRB335 HRB400 HRB500 |
standard(mm) | φ16 φ18 φ20 φ22 length:Depending on design requirements |
Material | 20MnSi | ||||
Strength Specification | Yield Load(MPa) | Tensile Strength(MPa) | Extensibility(%) | Breakage load(KN/M) | Theoretical quality(KG/M)
|
φ16 | ≧335 | ≧490 | ≧16 | ≧100 | 1.6
|
φ18 | ≧335 | ≧490 | ≧16 | ≧126 | 2.0
|
Φ20 | ≧335 | ≧490 | ≧16 | ≧156 | 2.5
|
Φ22 | ≧335 | ≧490 | ≧16 | ≧189 | 3.0 |
Product usage and characteristics
1.Equal strength rebar type resin anchor metal rod body products are widely used in underground rocky tunnel, semi-coal rocky tunnel and coal tunnel anchor support, especially suitable for underground complex conditions under the tunnel and bunker support. The product is used with resin anchors, its characteristics 1, fast growth of strength, high strength, after installation can not only withstand the load in a timely manner, but also a large anchoring force. 2, easy to install and operate, low labor intensity of workers, high support efficiency. 3, tons of coal support costs are greatly reduced. 4. This product is based on the MT146.2-2011 standards.
2.Product Characteristics and Structure Equal Strength Rebar Type Resin Anchor The main material of the metal body is preferred to be rebar with yield strength greater than 335MPa, which integrates the mixing of resin anchoring agent and installation of the anchor rod, and is conducive to improving the installation speed and preloading force of the anchor rod. The specifications and models can be designed and selected according to different applications, geological conditions and strength requirements.
Principle of operation and installation
1. Working Principle.
Equal-power threaded steel kind resin anchor metallic rod consists of rods made of various energy materials and their accessories collectively with matching resin anchoring agent. consistent with the design of anchoring duration, the rod body can be inserted into the hollow where the anchoring agent is positioned, after stirring, the anchoring agent will produce chemical response, and inside a sure time, the rod frame may be bonded with the coal and rock to be fixed within the rock wall as a whole, and the threaded quit might be introduced with the protective net and the bearing tray, after which tightened with the nut to obtain the role of the assist, with a view to form the high-strength pre-stressing help, and be capable of control the steadiness of roof slab, adapt to the movement of the peripheral rock, and correctly lessen to do away with the off-lying, and remedy the hassle of roof disintegrate, which will lessen to dispose of the hassle of roof collapse. it could manipulate the stableness of the roof slab, adapt to the motion of the peripheral rock, successfully lessen or take away the separation, remedy the problem of roof disintegrate, and includes a selection of guide paperwork and structures to form a prestressed support machine, which realizes the mechanical installation and substantially improves the protection and reliability of the support.
2. Installation and use
(1) According to the design of the metal rod body and anchoring agent selection
(2) Drill holes in the anchoring substrate, and the diameter and depth of the holes should be matched with the specifications of the anchors.
(3) After drilling, use pressurized air or water to remove the floating dust in the hole and load the anchoring agent.
agent.
(4) The use of mixing equipment to drive the metal rod body, while stirring while advancing to the bottom of the hole, the mixing time should be less than the anchor solidifying agent gel time.(5), in the waiting time do not make the rod body movement
(6) After the specified waiting time, can be on the tray spinning nut, bearing time reached, can test the tensile strength.
Right-hand anchor/equal strength threaded steel anchor applicable conditions.
1. According to the design requirements to determine the position of the anchor hole, use the eye drill, anchor drilling rig or coal electric drill to drill the hole, the depth is 80-100mm shorter than the length of the anchor rod. 2、Use the compressed air pipe to reach into the bottom of the eye, through the compressed air, blow the rock dust inside the hole.
2. Diameter of drilling hole should be 6-12mm larger than the diameter of anchor rod.
3. Feed the medicine roll into the bottom of the eye with the anchor, start the mixing device for mixing, and strictly control the mixing time according to the requirement of resin anchor fixing agent.
4. After reaching the curing time, put on the tray and tighten the nut.
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