| Model: | R25,R32,R38,R51 |
|---|---|
| Brand: | GY |
| Origin: | Made In China |
| Category: | Metallurgy , Mining & Energy / Metallurgy & Mining / Bars, Rods, Angles, and Stainless Steel Shapes |
| Label: | self drilling , hollow bar , drill bar |
| Price: |
US $20
/ meter
|
| Min. Order: | 1500 meter |
| Last Online:08 Aug, 2016 |
Brief introduction
Hollow bar self-drilling anchor is a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations.
For projects facing above geo-conditions, hollow bar self-drilling anchor should be considered as the main solution cuz it's designed for optimized installation, tailored to the project's needs.
By drilling a hole in collapsing soil or loose lock, with a sacrificial drill bit an a hollow bar, and after the drilling operation injecting cementitious grout or resin into the hollow bar and surrounding cavity, it's a top solution choice.
A hollow bar self-drilling anchor consists of
A hex nut
A bearing plate
A coupling sleeve which enables the flexibility in length by using the sleeve
Hollow anchor bar
A sacrificial drill bit
