Tunnel Construction Equipment T76S / R38N Self Drilling Anchor Bolt
for Construction
Anchor bolt
Anchor bolt means a rod that transfers the structures or
geotechnical load to a stable rock
formations, it consists of rod, drill bit, coupling, plate,
grouting stopper and nut. It has been
widely used in tunnling, mining, slope stabilization,
tunneldiseases treatment and roof supporting
of undergroundworks. It is for loose ground(clay, sand friable
etc.) Hollow anchor rod is made of
seamless tube with high strength.
Features of hollow grounting anchor bolt
• Particularly 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
Applications in Tunneling & Ground Engineering
• Radial bolting
• Slope stabilization
• Forepoling
• Micro injection pile
• Face stabilization
• Temporary support anchor
• Portal preparation
• Soil nailing
Self-Drilling Anchor Bolt Description
|
| R25N | R32N | R32S | R38N | R51L | R51N | T76N | T76S |
Outside Diameter (mm) | 25 | 32 | 32 | 38 | 51 | 51 | 76 | 76 |
Internal Diameter (mm) | 14 | 19 | 16 | 19 | 36 | 33 | 52 | 45 |
Ultimate Load Capacity (kN) | 200 | 280 | 360 | 500 | 550 | 800 | 1600 | 1900 |
Yield Load Capacity (kN) | 150 | 230 | 280 | 400 | 450 | 630 | 1200 | 1500 |
Tensile Strength, Rm (N/mm2) | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
Yield Strength, Rp0.2 (N/mm2) | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
Weight (Kg/m) | 2.3 | 3.2 | 3.6 | 5.5 | 6.5 | 8.0 | 16.0 | 19.7 |
Thread Type (left-hand) | ISO10208 | ISO1720 | MAI T76 Standard |
Steel Grade | EN10083-1 (Alloy Structure Steel) |
Compared to carbon steel, alloy structure steel has high
anti-corrosion capacity and high mechanical. |
| Anchor Bar | T40/20 | T40/16 |
| Outside Diameter(mm) | 40 | 40 |
| Internal Diameter (mm ) | 20 | 16 |
| Cross sectional area (mm²) | 713 | 910 |
| Ultimate load (kN) | 540 | 660 |
| Yield load (kN) | 430 | 525 |
| Weight (kg/m) | 5.6 | 7.15 |
| Thread type | T International Standard |
| Thread (Left /right hand) | Left or Right |
| Length (m) | (1) x2, x3, x4, x5, x6 |
T-Thread Anchor Bolt Technial Data
Bar Type | Outside Diameter (mm) | Inside Diameter (mm) | Cross section (mm2) | Ultimate Load KN | Yield Point KN | Weight (kg/m) | Thread Left/ Right Hand |
30/11 | 30 | 11 | 446 | 320 | 260 | 3.3 | Lift or right |
30/14 | 30 | 14 | 395 | 260 | 220 | 2.9 | Lift or right |
30/16 | 30 | 16 | 382 | 220 | 180 | 2.7 | Lift or right |
40/16 | 40 | 16 | 879 | 660 | 525 | 7.0 | Lift or right |
40/20 | 40 | 20 | 726 | 539 | 430 | 5.6 | Lift or right |
52/26 | 52 | 26 | 1337 | 929 | 730 | 10.0 | Lift or right |
73/53 | 73 | 53 | 1160 | 1630 | 970 | 12.3 | Lift or right |
73/56 | 73 | 56 | 1094 | 1414 | 785 | 11.1 | Lift or right |
73/45 | 73 | 45 | 2265 | 1630 | 1180 | 17.8 | Lift or right |
Company Information
KSQ Technologies (Beijing) Co. Ltd. has significant experience and
know-how in the supply of materials, components, finished goods,
specially designed/engineered equipment, and services from China.
The company caters to medium to large scale clients who are doing
projects and capital expansion, as well as to firms who require
support with consumable products, maintenance, and repair
operations.
