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R38 Self Drilling Anchor

   
  • R38 Self Drilling Anchor
Product Details

R38 self drilling anchor includes anchor coupling, anchor nut, anchor plate and drill bit adapter. It eliminates the requirement for a cased borehole. The system provides advantages for all areas of its applications, where boreholes would require the time consuming drilling with casing systems in unconsolidated or cohesive soil. R38 self drilling anchor can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. The unconsolidated ground condition favor the self drilling anchor bolt technique for fast and simple method of installation compared to the traditional method. For simultaneously drilling and injecting, it is usually performed in cases where the ground needs to be further improved or stabilized during installation.

 

Features

1. It features a hollow bore for flushing, or simultaneous drilling and grouting.
2. Particularly suitable for difficult ground conditions.
3. It can be elongated by using couplers.
4. Unnecessary to be pulled out.
5. The hollow bar can be used as grouting channel.
6. Installation & operation are simple.

 

Application

• Pre-support Project,
• Radial Support Project
• Foundation Support Project
• Soil Nail Wall
• Hydroelectric Station
• Other Rock Supporting Work

 

Specifications
Sample Size Outer Dia.
(mm)
Inner Dia.
(mm)
Ultimate Load
(KN)
Yield Load
(KN)
Weight
(Kg/m)
Thread
 

R38N/1 38 22.5 500 400 4.8 ISO 10208
R38N/2 38 21 500 400 5.5 ISO 10208
R38N 38 19 500 400 6.0 ISO 10208
R38S/1 38 18 550 430 6.2 ISO 10208

 

Anchor Coupler
Sample Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg)
Thread
  R38N 51 220 1.70 ISO 10208

 

Anchor Nut
Sample Size Type Key Size
(mm)
Length
(mm)
Weight
(Kg)
 
R38 Hex Nut 50 50 0.39
R38 Hex Nut 50 60 0.47
  R38 Domed Nut 52 60 0.70

 

Anchor Plate
Sample Size Type Dimension
(mm)
Thickness
(mm)
Hole Dia.
(mm)
Weight
(Kg)
        R38N Domed Plate 200*200 12 41 3.60
R38N Domed Plate 150*150 8 41 1.38
  R38N Flat Plate 140*140 35 41 5.00
R38N Flat Plate 200*200 12 41 3.60

 

Drill Bit Adapter
Sample Hollow Anchor Bar Drill Bit Length
(mm)
Weight
(Kg)
  R38N 51 68 0.41

 

Centralizer
Sample Size Outer Dia.
(mm)
Length
(mm)
Weight
(Kg)
  R38 78 30 0.30

 

Drill Bit
Sample Type Size Diameter (mm)
  EX R38 ø76, ø90, ø100
  EXX R38 ø76, ø90
  ES-F R38 ø76, ø90
  ESS-F R38 ø90, ø115
  Clay Bit R38 ø90, ø100, ø110, ø130, ø150
  EY R38 ø76
  EYY R38 ø76, ø90
  XX R38 ø110, ø130

 

Description

R38 self drilling anchor can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. The unconsolidated ground condition favor the self drilling anchor bolt technique for fast and simple method of installation compared to the traditional method. For simultaneously drilling and injecting, it is usually performed in cases where the ground needs to be further improved or stabilized during installation.

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