SupAnchorRock Reinforcement StrategySelf-drilling hollow anchor systems

The SupAnchor Self-Drilling Hollow Anchor is a unique anchoring system and is today’s answer to the increasing demands of the tunnelling industry and ground engineering for safer and faster production.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.

Features and Advantages• Fits SupAnchor standard Boomer, ROC and Mustang rigs.• Particulary suitable for difficult ground conditions.• A high rate of installation since drilling, placing and grouting can be performed in one single operation.• Self drilling system eliminates the requirement for a cased borehole.• Installation with simultaneous drilling and grouting possible.• Easy installation in all directions, also upwards.• Suitable for working in limited space, height and in areas of difficult access.• Simple post grouting system. Hot-dipped galvanizing for corrosion protection

SupAnchor Self-drilling hollow anchor systems are suitable for applications such as:Tunnelling• Radial bolting • Forepoling• Face stabilization • Portal preparation Ground engineering• Soil nailing• Slope stabilization• Micro injection pile• Temporary support anchor

Manual installationThe above scheme explains the working steps for the manual installation of SupAnchorSDA anchors.

Semi-mechanized installation The anchoring or bolting industry has a demand for increased efficiency and quality of the installation of bolts. In addition increased safety by minimizing work in unprotected areas is becoming more important to contractors when installing bolts in difficult rock/soil conditions. A change from the conventional post grouting method to a semi-mechanized installation method using an IRIA (Integrated Rotary Injection Adapter) method provides an adaptable installation process, which offers an improved solution and as such added value to the customer:

SDA installation becomes one work cycle performed only by the drill feed No additional work cycle for post grouting Reduced operation cost for additional equipment (working platforms, etc.) Better adjustment of the installation process in respect with the changing geology Flexible selection and adjustment of flush media as needed (water, air or grout)

Specification R25N R32L

R32N

R32/18.5

R32S

R32SS R38N R38/19 R51L R51N T76N T76S 30

/1130/14

30/16

40/16

40/16S

40/20

52/26

Outside Diameter

( mm )25 32 32 32 32 32 38 38 51 51 76 76 30 30 30 40 40 40 52

Internal Diameter

( mm )14 22 21 18.5 17 15.5 21 19 38 36 49 46 11 14 16 18 16 20 26

Yield load( kN ) 150 200 230 230 280 350 400 400 450 630 1200 1500 260 220 180 525 525 430 730

Ultimate load( kN) 200 260 280 280 360 405 500 500 550 800 1600 1900 320 260 220 660 660 539 929

Weight( kg/m ) 2.3 2.8 2.9 3.4 3.45 3.6 4.8 5.5 6.0 7.6 16.5 19.0 3.1 2.8 2.7 6.3 7.0 5.3 9.5

Thread type ISO 10208 ISO 1720 MAI Factorystandard TITAN Factory standard

Type of steel EN 10083-1

ThreadLeft /right

handLeft or Right

Length ( m ) 1m, 1.5m, 2m, 2.5m, 3m, 3.5m, 4m, 4.5m, 5m, 5.5m, 6m

Specification R25 R32N R32/18.5 R32S R38N R38/19 R51L R51N T76N T76S 30

/1130/14

30/16

40/16

40/16S

40/20

52/26

Outside Diameter

( mm )36 42 42 42 52 52 63 63 95 95 38 38 38 54 54 54 70

Length( mm ) 150 145

160145160

160190 220 220 120

140200220

200220

200220 105 105 105 140 140 140 160

Weight( kg/pc) 0.6 0.7

0.80.70.8

0.80.9 1.7 1.7 1.0

1.11.92.0

4.54.6

4.54.6 0.42 0.42 0.42 1.12 1.12 1.12 2.4

Thread type ISO 10208 ISO 1720 MAI Factorystandard TITAN Factory standard

Type of steel 41Cr4

Hardness(HRC) 23-30

ThreadLeft /right

handLeft or Right

Type Machined steel coupling with patented middle stop.Type Machined steel coupling hot dip galvanized

Specification R25 R32N R32/18.5 R32S R38N R38/19 R51L R51N T76N T76S 30

/1130/14

30/16

40/16

40/16S

40/20

52/26

Key Size( mm ) 41 46 46 46 50 50 75 75 100 100 46 46 46 65 65 65 80

Length( mm ) 41 45 45 65 60 60 70 70 80 80 35 35 35 50 50 50 70

Weight( kg/pc) 0.3 0.35 0.35 0.45 0.5 0.5 1.55 1.55 2.8 2.8 0.35 0.35 0.35 0.88 0.88 0.88 2.2

Thread type ISO 10208 ISO 1720 MAI Factorystandard TITAN Factory standard

Type of steel CK45

Hardness(HRC) 25-30

ThreadLeft /right

handLeft or Right

Machined and Casted steel nutMachined and Casted steel nut hot dip galvanized

Specification R25 R32N R32/18.5 R32S R38N R38/

19 R51L R51N T76N T76S 30/11

30/14

30/16

40/16

40/16S

40/20

52/26

Size( mm )

150x

150

200X

200

200x

200

200x

200

200 X

200

200 x

200

200x

200

250x

250

250x

250

250x

250

200x

200

200 x

200

200 x

200

200x

200

200x

200

200 X

200

220x

220Thickness

( mm ) 8 10 10 12 12 12 30 40 40 40 8 8 8 12 12 12 35

Hole Diameter

( mm )30 35 35 35 41 41 60 60 80 80 36 36 36 56 56 56 65

Type of steel Q235

Specification R25 R32N R32/18.5 R32S R38N R38/19 R51L R51N T76N T76S 30/

1130/14

30/16

40/16

40/16S

40/20

52/26

Outside Diameter

( mm )

425176

517690

100115

517690

100115

517690

100115

7690

100110115130

7690

100110115130

7690

100110115130150

7690

100110115130150

100110115130150180200

100110115130150180200

4246517690

4246517690

4246517690

7090

110115130

7090

110115130

7090

110115130

90115130175

Bit type

EXEXXES

ESS

EXEXXESESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEY

EYYEW

EXEXXES

ESSEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXESESSEC

ECCEY

EYYEW

EXEXXESESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEC

ECCEY

EYYEW

EXEXXES

ESSEY

EYYEW

Thread type ISO 10208 ISO 1720 MAI Factorystandard TITAN Factory standard

HardnessTC-inserts bits: HRA 87-88

Hardened Steel bits: HRC 50-55Clay bits: HRC 43-48

Anchor Drill Cross Bit EX and EXXEX: Hardened steel cross bit for loose to medium dense ground conditions .

EXX: TC-inserts cross bit for soft to medium for Medium fractured rock formations .

Anchor Drill Button Bit ES and ESSES: Hardened steel button bit for weak cemented soil/sands and weak fracturedrock & plain concrete.

ESS: TC-inserts button bit for Strong fractured rock formations.

Anchor Drill Arch Bit EC and ECCEC: Steel arch bit for Loose to densesoil/sand, including bands of soft rock.

ECC: TC-inserts arch bit for Mediumfractured rock formations .

Anchor Drill Drop Centre Bit EY and EYYEY: Steel drop centre bit for Weak cemented soil/sands and weak fractured rock & plain concrete.

EYY: TC-inserts button bit for Strong fractured rock formations.

Anchor Drill Clay Bit EWEW: Casting clay bit for Soft clay and soil.

Drill Bit Adaptor SleevesAdaptor sleeves enable the use of a largerdiameter drill bit with a specific bar size,increasing the borehole diameter and providing a greater surface area of bond inweak ground.

Size: R25/R32, R32/R38, R38/R51