Self-drilling anchor system-T73

Anchoring is widely used in tunnel for pre-support, slope, coast, mine, water conservancy projects, Building foundation, roadbed reinforcement and geological faulty treatment such as landslip, crack, and sink age, it’s irreplaceable in narrow construction environment.

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PRODUCTS DETAILS

Anchoring is widely used in tunnel for pre-support, slope, coast, mine, water conservancy projects, Building foundation, roadbed reinforcement and geological faulty treatment such as landslip, crack, and sink age, it’s irreplaceable in narrow construction environment.


ADVANTAGES 

Self Drilling Hollow Bar Anchor System:

Comprised of a hollow threaded bar attached with a drill bit that performs drilling. The hollow bar allows air and water to freely pass through the bar during drilling to remove debris, after drilling at the required depth is completed, grout fills the hollow bar through the pressure for their requirement and completely covers the entire bolt.

Coupler: 

The coupler can be used to join hollow bars and extend the bolt length, it means the anchor can be elongated with the couplers.

Plate and nut :

The plate and nut are installed according to their design requirement.

Drill bit: 

The drill bit would be selected at the choice of ground condition.


Hollow Anchor Bar

Size

Outer Dia.

Inner Dia.

Ultimate Load

Yield Load

Weight

(mm)

(mm)

(kN)

(kN)

(Kg/m)

E-T73/53

73

53

1160

970

13.2

E-T73/45

73

45

1582

1270

17.8

E-T73/40

73

40

1865

1430

21.2



Coupler

Size

Outer Dia.

Length

Weight

Note

(mm)

(mm)

(Kg/pc)

S-T73

89

235

3.82

With sealing structure

95

245

5.7



Coupler

Size

Outer Dia.

Length

Weight

Note

(mm)

(mm)

(Kg/pc)

S-T73

89

235

3.82

With sealing structure

95

245

5.7



Spherical Collar Nut

Size

Key Size

Length

Weight

(mm)

(mm)

(Kg/pc)

E-T73

95

70

1.9



Anchor plate

Size

Dimensions

Thickness

Hole Dia.

Weight

(mm)

(mm)

(mm)

(Kg/pc)

SST73

175×175

34

80

6.85

250×250

40

80

18



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