Luoyang Gongyan Technology Co., Ltd.
Main products:rock bolt,hollow bar,FRP rock bolt,thread bar,friction bolt
Products
Contact Us
  • Contact Person : Ms. Xing kelly
  • Company Name : Luoyang Gongyan Technology Co., Ltd.
  • Tel : 86-379-63501959
  • Fax : 86-379-63501159
  • Address : Henan,Luoyang,Room 1102,Aolin Building, Taikang Road, Wangcheng Avenue
  • Country/Region : China
  • Zip : 471023

hollow selfdrill grouted anchor

hollow selfdrill grouted anchor
Product Detailed
1.Hollow selfdrill grouted anchor 2.Embodies drilling, grouting and anchoring as a whole 3.Diameter:25-103mm 4.High strength

     Hollow selfdrilll grouted anchor embodies drilling, grouting and anchoring as a whole. Widely used as an efficient anchoring means, in tunnel presupport, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sinkage. 

It's irreplaceable in narrow construction environment.

consists of anchor rod, steel drill bit with alloy head, anchor coupling (optional), arch plate, grouting stopper and hex nut.

Product Structure:

1) Nut: The nut can delivery the surrounding rock stress to arch plate centralized

2) The arch plate can bear more stress of surrounding rock

3) Grouting pressure can be kept at a high level under the help of grouting stopper, so the cracks are fully filled and the fractured rock is improved

4)  The anchor body with the continuous international standard wave-shape thread, convenient to fit drilling bit, coupling and bolt, also can cut arbitrary shape and connecting lengthening 

5)  The coupling can let the pipe shed drilling to the design depth when drilling and lengthening at same time. 

6)  With a bit at the anchor head, it is easy to cut through various rocks.

Performance Parameter:

 specification

external diameter 

tensile strength (KN)

 rotary direction 

thread pitch 

(mm)

standard length( m)

GJ48

48

450KN

  

10

3    3.5

4    4.5

5    5.5

6

GJ51

51

left

10

GJ60

60

700KN

 left

10

GJ73

73

800KN

 left

10

GJ89

89

1000KN

 left

10

GJ108

108

1300KN

  left

10

Remarks :the main difference between the self-drilling pipe shed and semi self-drilling pipe shed is the quality of drill bit 

Special length can be made by customer’s request.

hollow selfdrill grouted anchor



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