TS-HM-150-ZD
Area of Application
The TS-HM-150-ZD is a shallow landslide barrier with a hinged connection to the base plate requiring upslope retaining ropes to support the post head. It has been 1:1 scale tested with multiple impact events.
Rope Guidances
The bearing and middle ropes are led through a rope guidance integrated on each post head and base plate. Each guidance provides large curved surfaces to help protect the ropes and allow unobstructed movement. The guidance is designed to be robust and with no movable parts in order to ensure longevity and zero 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.
Retaining Rope Anchorage
The post head is secured using retaining ropes leading to an upslope anchor in the middle of the field on either side of the post. This gives side-to-side stability of the post as well as the ability to lead forces into the ground. One anchor is shared between two posts. For the TS-HM-150-ZD, there are no brake elements on the retaining ropes.
Lateral Anchorage
The lateral anchoring is completed with thimbles and shackles on every rope for a technically correct connection and ease of maintenance. The TS-HM-150-ZD has brake elements on the bearing ropes but none on the retaining ropes from the head of the post.
GDV Brake Element
The GDV series of brake elements are steel profiles with a roller which is pulled along its length when a force is applied, causing deformation. The gauge and length of the steel strip can be altered to control the amount of energy absorbed and the total displacement. These brakes are highly efficient and require minimal off-set from the posts.
Classification
| Model | TS-HM-150-ZD |
| Style | Hinged System |
| Impact Pressure [kN/m2(lbf/ft2)] | up to 275 (5740) |
| Available Heights [m (ft)] | 3.5 - 4.0 (11.5 - 13.1) |
| Verification | Full Scale Tested |
Test Report Summary
| Test Height [m (ft)] | 3.5 (11.5) |
| Number of Impacts | 3 |
| Material Stream USCS | GW-GM |
| Energy Absorption [kJ (ft-tons)] | > 5000 (> 1843) |
| Residual Height Class | A (≥50%) |
| Component Failure | None |
| Primary Net Opening | None |
| Secondary Mesh | Yes |
Test Report
| Report Number | 70 12 0165 |
| Issuing Body | TSUS Slovakia Building, Testing and Research Institute |
| Date of Issue | August 18, 2012 |
Primary Net
| Model | Omega-Net 9.0 |
| Type | Steel Wire Cable |
| Rope Diameter [mm (inch)] | 9.0 (0.354) |
| Rope Construction | 1 x 7 Spiral |
| Single Wire Diameter [mm (inch)] | 3.0 (0.118) |
| Corrosion Protection | Zn or ZnAl (Class A) |
| Mesh Size [mm (inch)] | 185 x 185 (7.3 x 7.3) |
| Unit Weight [kg/m2(lb/ft2)] | 6.8 (1.39) |
| Mesh Tensile Strength calculated [kN/m (lbf/ft)] | 465 (31,862) |
| Connection to Main Ropes | Threaded |
| Connection to Adjacent Panel | 7/16" 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)] | 24 (0.945) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | 2 |
| Brake Element Model | GDVI 45-12-130, 120x8-1500 |
Middle Ropes
| Quantity per fence segment | 2 |
| Rope Diameter [mm (inch)] | 22 (0.866) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | 1 |
| Brake Element Model | GDVI 45-12-130, 120x8-3000 |
Retaining Ropes
| Quantity per post | 2 |
| Rope Diameter [mm (inch)] | 24 (0.945) |
| Corrosion Protection | Zn or ZnAl (Class A or B) |
| Brake Element per rope | n/a |
| Brake Element Model | n/a |
Support Structure
| Post Type | HEA 280 |
| Integrated Ladder | Rungs every 0.5 m (19") |
| Rope Guides | Integrated |
| Post Weight as tested ([kg (lbs)] | 360 (793) |
| Base Plate Connection | Tongue and Pin |
| Base Plate Foot Print ([mm (in.)] | 790 x 250 (31 x 10) |
| Base Plate Weight [kg (lbs)] | 49 (108) |
| Anchors per base plate | 2 |
Post Base Support
Retaining Rope Anchorage
Lateral Anchorage
Anchor Forces
| Base Plate Fk,par [kN (kips)] | 116 (26) |
| Lateral Anchor Fk,lat [kN (kips)] | 228 (51) |
| Retaining Rope Anchor Fk,ret [kN (kips)] | 104 (23) |
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 | 12 | 25 | 22 | site dependent |
| Lateral | 2 | 32 | 28 | R38-500 |
| Upslope | 7 | 25 | 22 | R32-250 |
Typical Cross Section
Typical Layout
Pre-test Photo, Front
Post-test Photo, Front
