
what is Self-drilling hollow rock bolt?
Tunnel and Underground ProjectIn tunneling and underground projects, self-drilling hollow rock bolts play a crucial role in initial support and stabilization. These rock bolts provide high-pressure grouting to fortify soil or rock masses, ensuring surface stability and structural integrity within tunnels.
Products feature
1, easy installation, to ensure that the prestress application can be carried out in time.
2, active tension, prestress up to 50KN, and can achieve appropriate overtension.
3, using conventional tools, a single person can achieve the tensioning operation.
4, through the hollow rod body to achieve high pressure grouting, improve the surrounding rock.
5. Control the whole process from production to installation to ensure quality.
Products announcements
1. Grouting workers must bring protective tools.
2, carefully check the machinery and equipment and lines? Avoid electric leakage injury.
3, the mechanical driver in strict accordance with the operation procedures.
4, grouting workers and grouting pump drivers must be coordinated.
5, the grouting must first close the valve, and then pay attention to the slurry.
6, grouting mouth is not allowed to people
Products Application
Applications of Self-Drilling Hollow Rock Bolts

Tunnel and Underground Project
In tunneling and underground projects, self-drilling hollow rock bolts play a crucial role in initial support and stabilization. These rock bolts provide high-pressure grouting to fortify soil or rock masses, ensuring surface stability and structural integrity within tunnels. According to the types of support in the tunnels, self-drilling hollow rock bolt can be divided into fore piling, radial support, tunnel-face support, locking the foot support and reinforcement of the tunnel portal.

Ground and Foundation Project
For ground and foundation projects, self-drilling hollow rock bolts serve as versatile solutions for micro-piling and structural reinforcement. These rock bolts effectively transfer pressure, tension, or periodic loads to the surrounding soil, limiting deformation and enhancing foundation stability. They can be used as new building pile foundation, existing building structure repair, tower foundation, bridge reinforcement, soundproof wall foundation, protective screen pile foundation, anti-floating pile foundation, retaining beam anchoring and other different structural scenes.

Slope Stabilization Project
In slope stabilization endeavors, self-drilling hollow rock bolts offer robust anchoring systems to mitigate geological hazards and prevent slope instability. Slope stabilization is ensured by the entire anchoring system itself subjected to tensile and shear forces. It can be used as soil nail support, slope protection barrier, falling rock protection, retaining wall, embankment stability, roadbed reinforcement and other different application scenarios.

who we are?
We are a manufacturer and exporter specializing in providing supporting materials for coal mines, construction projects and large concrete projects. We mainly produce anchor rods, trays, resin anchors, mesh, W steel belts, u-beams, anchors and other supporting materials for coal mine projects, and our supporting materials are exported to more than ten countries and regions, such as the United States, Europe, Russia and so on. It is one of the important manufacturers and exporters of anchoring materials in China.
We have passed a series of certificates such as Quality Management System Certification and Environmental Management System Certification.
Our enterprise vision is: casting industry famous brand, building industrial and mining leading enterprises.
we can supply high-quality products to meet the requirements of top-ranking customers in this field from different countries in the world.
We always strive to be the leader in the industry and create a more valuable one-stop service platform for coal mine support materials for our customers.
Specification
|
Product name |
Self-drilling hollow anchor bar |
|
Place of Origin |
China |
|
Hebei |
|
|
Brand Name |
Brand Name |
|
Material |
Q235 |
|
Type |
Anchor rock bar |
|
Color |
Silver, Black |
|
Length |
Customers' Requirement |
|
Certification |
ISO |
|
Payment Term |
30%TT Advance + 70% Balance |
|
Delivery Time |
7-14 days |
|
Function |
Underground Mining Tunnel Arch Reinforcement |
|
Feature |
Easily install |
|
Application |
In tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement |
application


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