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T103 Self-Drilling Anchor Systems

Self-drilling anchor system is a type of ground anchor used to provide stability in soil or rock formations. For application in soil nailing, rock bolting, micro-pipling, tunneling, mining and infrastructure.

Description

T103 Self Drilling Anchor Bolt

T103 Self-Drilling Anchor Bolt

Size O.D. (mm) I.D. (mm) Sectional Area (mm²) Ultimate Load (kN) Yield Load (kN) Agt Weight (kg/m)
T103 T103-78 103.0 78.0 3180 2270 1800 >6% 25.0
T103-51 103.0 51.0 5600 3660 2670 >6% 44.0
Thread direction Right hand
Thread standard Internatioanl standard

T103 Self drilling Anchor Coupler

T103 Self-Drilling Anchor Coupler

Thread size Length(mm) Out Diameter(mm) Unit Weight(kg)
T103 255.0 123.0 7.5
290.0 132.0 12.5
Steel grade As per request
Thread direction Right hand
Thread standard Internatioanl standard
Hardness (HRC) HRC25 ~ HRC30
Features All are designed with a middle stop; O rings are available as per request.

T103 Self Drilling Anchor Nuts

T103 Self-Drilling Anchor Nuts

Size SW (mm) L (mm) Unit Weight (kg)
Spherical Nut
T103 125 80 3.40
Steel grade As per request
Thread direction Right hand
Thread standard Internatioanl standard
Hardness (HRC) HRC25 ~ HRC30
Features All nuts are machined and with chamfered edges to suit both domed plates and solid plates.

Self-Drilling Anchor Bits

EX Self Drilling Anchor Bits EX All steel cross bit for loose to medium dense ground formations.
ES Self Drilling Anchor Bits ES Hardened button bit for weak cemented soil/sands and weak fractured rock formations.
EC Self Drilling Anchor Bits EC Hardened arch bit for loose to dense soil or sand formations.
EY Self Drilling Anchor Bits EY Hardened three-cutters bit for weak cemented soil/sand and weak fractured rock formations.
EXX Self Drilling Anchor Bits EXX TC cross bit for medium to strong fractured rock formations.
ESS Self Drilling Anchor Bits ESS TC button bit for strong fractured rock formations.
ECC Self Drilling Anchor Bits ECC TC arch bit for medium fractured rock formations.
EYY Self Drilling Anchor Bits EYY TC three cutters bit for medium fractured rock formations.
Bit Matrix
Dia. 42 51 76 90 100 115 130 150 175 220 250 280 300 350
T103
Thread standard ISO10208 / ISO 1720 / International standard
Thread direction Left Hand / Right Hand
Hardness HRA87 ~ HRA90 for TC bits, HRC48 ~ HRC55 for all steel bits

Self Drilling Anchor Plate

Self-Drilling Anchor Plate

Size Solid Plate
A x A x B (mm) D (mm) Weight (kg)
T103 240 x 240 x 50 110 19.0
Note Other dimensions are available upon request.

Self Drilling Centralizer

Self-Drilling Centralizer

Size Out Diameter (mm) Unite Weight (kg)
T103 165 3.00

Applications of T103 Self-Drilling Anchor Systems

The T103 Self-Drilling Anchor System is a versatile solution for a wide range of geotechnical and construction projects. It is specifically designed to provide stability in challenging ground conditions where conventional drilling methods are inefficient or impractical. By combining drilling, grouting, and anchoring into a single process, the system significantly increases project efficiency and reduces overall costs. The T103 system is particularly well-suited for applications that require reliable ground support, even in unstable soil, fractured rock, or loose formations.

Its hollow bar design allows for the simultaneous injection of grout, which stabilizes the borehole and enhances the anchor’s load-bearing capacity.

  • Tunneling and Mining: The T103 system provides crucial support for tunnel faces, roofs, and walls, ensuring stability during excavation and long-term reinforcement. It is used for spiling, face stabilization, and rock bolting.
  • Soil Nailing and Slope Stabilization: This system is an ideal solution for reinforcing unstable soil slopes and retaining walls. By installing a grid of T103 anchors, engineers can effectively prevent landslides and control ground movement.
  • Micropiling and Foundation Underpinning: T103 self-drilling anchors are used as micropiles to increase the load-bearing capacity of existing foundations. This is essential for reinforcing old structures or supporting new construction in poor ground conditions.
  • Infrastructure and Retaining Walls: The system is widely used in the construction of bridges, roads, and other infrastructure. It provides ground anchors for retaining walls, ensuring structural integrity and preventing erosion.

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