Application of nailing spacer:

This spacer is mounted on the anchor bolt to create a uniform lateral distance between the anchor bolt and the wall of the holes embedded in the earth walls adjacent to the structure. The use of nails to prevent the fall of soil from the walls and roof of the tunnel is also required in the trenches.

Features and prices of spacer nailing:

High quality construction, excellent strength while being flexible, preventing the roof and walls from falling, preventing the rebars from coming into contact with the soil and preventing the rebar from corroding - reasonable price of spacer nailing (rpco manufacturer of spacer nailing)

Amount of use:

Soil stabilization: Normally the amount of nailing used is 1 per well
Bolt Implantation: Depending on the depth of the hole drilled, one is usually required every 50 cm

How is nailing done?

Nailing was a creative technique used by Australian engineers in the 1960s to stabilize tunnel walls.

To perform nailing, the walls are first adjusted; Then, a network of steel meshes is installed with 50 cm nails and concrete (shotcrete) is sprayed on it with a thickness of about 10 to 15 cm. The next step is to drill the holes and insert the rebar or cable. The boreholes are then injected with cement slurry and after the slurry sets, the indigo heads are closed, but today this is done with the help of special grouts.

Thus, the force of soil thrust is applied to the head of the indigo through mesh and shot, and the force of the head of the indigo is transmitted to the soil mass through the indigo. It is as if the soil drift is controlled by the nailing system to the soil itself.

Nailing was later used by German and French engineers to stabilize trenches, tunnels, and bridges. Today, nailing is widely used in various construction projects, such as stabilization of railway trenches and highways, construction of excavated guard structures in urban areas for the construction of high-rise buildings that include several floors inside the ground and stabilization of slopes. The ground is used against possible landslides.

In order to perform nailing operations, a special spacer is needed to simplify the implantation of bolts and nails. Nail plastic spacer is used to cover anchorage rebars and soil reinforcement as well as planting rebars and anchor belts. It should be noted that the use of anchor belts is necessary to prevent soil from falling on the walls and roof of the tunnel, as well as in the trenches.

The use of plastic nailing spacer has the advantage that the rebars are located in the center relative to the location of the boreholes and prevent the rebars from contacting the soil and preventing the transfer of corrosion to the rebars, thus preventing possible landslides and trenches. To be prevented. Another application of spacer nailing is bolt implantation for expansion, consolidation and reinforcement of concrete sections.

Important points of using spacing nails:
It is recommended to fix the nailing spacer on the reinforcements better, after placing the rebar around the rebar with the reinforcement wire.
When drilling holes for bolting, in addition to the diameter of the rebar, the cover created by the spacer must also be considered.
The plastic nailing spacer creates a 2 cm concrete cover on the bolt, which will add a total of 4 cm to the drilling diameter in addition to the rebar diameter.

Nailing plastic spacer is designed and manufactured within the framework of international standards. If you are a manufacturer of plastic spacers, please contact our experts ( rpco company ) to get the price list of nailing spacers and other spacers on the market.