TS-300-oA
Area of Application
The TS-300-oA is a low energy rockfall catchment fence that utilizes a fixed-post and thus requires no upslope retaining ropes. It has been 1:1 scale tested according to the Austrian WLV guidelines. It fully meets the requirements for Consequence Class 3 of Appendix E of the ONR 24810 “Technical protection against rockfall – Terms and definitions, actions, design and construction, and monitoring and maintenance” and carries the highest performance rating available according to the Austrian Department of Avalanche and Torrent Control’s rockfall catchment fence type list. As such, it may be used on projects with all levels of risk.
Rope Guidances
The upper and lower bearing ropes are led through a rope guidance that is integrated on each post head and base plate. The middle ropes are attached to the post using shackles. This style of guidance simplifies installation and maintenance.
Integrated Ladder
Each post has an integrated ladder composed of rungs spaced at 50 cm intervals in the webbing of the I-beam. The ladder assists in the installation of the fence as well as routine inspection and maintenance.
Base Plate
As with all fixed-rotation systems, the base plate is integrated into the post. The lower bearing rope is led through a guidance attached to the base plate having a curved surface to assist deflection of the rope and a pin to keep it in place. The base of the post is secured to the foundation/subsurface through three bolts or rock anchors.
Lateral Anchorage
Lateral anchoring or internal anchoring of long sections of fences are achieved normally with two anchors having the main bearing ropes and the middle ropes attached with brakes, thimbles and shackles. Brake elements on the middle ropes allow for more elongation than the upper and lower brakes to maximize energy absorption while maintaining a large residual height.
AVT-phx Brake Element
The AVT-phx series of brake elements are steel coils that unravel when a force is applied. The gauge, width and number of coils can be specified in order to control the amount of energy absorbed and the total displacement. With no moving parts, these are some of the safest and most reliable brakes in the industry.Classification
| Model | TS-300-oA |
| Style | Fixed Rotation |
| Energy Class | 1 |
| Maximum Energy Level Certified/Tested [kJ (ft?tons)] | 300 / 348 (110 / 128) |
| Service Energy Level Certified/Tested [kJ (ft?tons)] | n/a |
| Approved Heights [m (ft)] | 3.0 - 4.5 (9.8 - 14.8) |
| Verification | Full Scale Tested |
| Certification | According to WLV Guideline |
Test Report Summary
| Test Height [m (ft)] | 3.0 (9.8) |
| Maximum Elongation [m (ft)] | 3.75 (12.3) |
| Residual Height Class | A (≥50%) |
| Component Failure | None |
| Primary Net Opening | None |
| Secondary Mesh | E.g. 50/50/2.5 |
Test Report
| Report Number | 0603 |
| Issuing Body | Montanuniversität Leoben |
| Date of Issue | November 25, 2003 |
Primary Net
| Model | Omega-Net 6.0/135 |
| Type | Steel Wire Cable |
| Rope Diameter [mm (inch)] | 6.0 (0.236) |
| Rope Construction | 1 x 7 Spiral |
| Single Wire Diameter [mm (inch)] | 2.0 (0.0787) |
| Corrosion Protection | Zn or ZnAl (Class A) |
| Mesh Size [mm (inch)] | 135 x 135 (5.3 x 5.3) |
| Unit Weight [kg/m2(lb/ft2)] | 3.6 (0.737) |
| Mesh Tensile Strength calculated [kN/m (lbf/ft)] | 246 (16,856) |
| Connection to Main Ropes | Threaded |
| Connection to Adjacent Panel | 5/16" Shackle |
Omega-Net
The primary net material used in Trumer systems is called the Omega-Net. It is a steel cable net made from spiral rope that has thick individual wires to resist abrasion. The strands of rope are pre-bent into arcs resembling an omega shape and then woven together to make the net. This process yields an extremely strong net with high flexibility and energy absorption characteristics.
Bearing Ropes
| Quantity per fence segment | 2 |
| Rope Diameter [mm (inch)] | 16 (0.63) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | 2 |
| Brake Element Model | AVT phx 60/25-2.5 |
Middle Ropes
| Quantity per fence segment | 2 |
| Rope Diameter [mm (inch)] | 16 (0.630) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | 2 |
| Brake Element Model | AVT phx 60/20-4.5 |
Retaining Ropes
| Quantity per post | n/a |
| Rope Diameter [mm (inch)] | n/a |
| Corrosion Protection | n/a |
| Brake Element per rope | n/a |
| Brake Element Model | n/a |
Support Structure
| Post Type | HEB 160 |
| Integrated Ladder | Rungs every 0.5 m (19") |
| Rope Guides | Integrated and 3/4" Shackle |
| Post Weight as tested ([kg (lbs)] | 220 (485) |
| Base Plate Connection | Fixed |
| Base Plate Foot Print ([mm (in.)] | 790 x 300 (31 x 12) |
| Base Plate Weight [kg (lbs)] | n/a |
| Anchors per base plate | 3 |
Post Base Support
1.Post;
2.Rope Guide;
3.Base Plate;
4.Anchor Nut;
5.Washer;
6.Anchor;
7.Foundation
Base Plate Anchor Layout
Lateral Anchorage
1.Side Stabilization Rope;
2.Upper Bearing Rope;
3.Lower Bearing Rope;
4.Middle Bearing Rope;
5.Brake Element;
6.Anchor Eye;
7.Anchor
Anchor Forces
| Lateral Anchor Fk,lat [kN (kips)] | 96 (21.6) |
| Slope Parallel Force H at base plate [kN (kips)] | 170 (38.2) |
| Tension Force per tension anchor at base plate, Fk,ten [kN (kips)] | n/a |
| Bending Moment at foot of post as tested, MFOK [kNm (ton?ft)] | 249 (92) |
Typical Recommended Anchors Based on Steel Grade
| Anchor Position | Quantity per 50 m 10 m post spacing | 500/550 MPa (e.g. GEWI) | 670/800 MPa (e.g. GEWI Plus) | min 470 MPa (e.g. IBO) |
| Base Plate | 18 | 32 | 25 | n/a |
| Lateral | 4 | 25 | 22 | R32-210 |
Typical Cross Section
1.Post;
2.Rope Guide;
3.Base Plate;
4.Omega-Net;
5.Anchor;
6.Foundation
Typical Layout
1.Post;
2.Upper Bearing Rope;
3.Lower Bearing Rope;
4.Middle Bearing Rope;
5.Side Stabilization Rope;
6.Lateral Anchor
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