Hexagonal netting system is a kind of flexible protection system that is designed to retain or channel minor landslides of rocks whose size is greater than the mesh, preventing them from damaging the surrounding environment. It is typically used in both simple drapery systems and in a variety of specialist geotechnical and engineering applications including slope stabilization, rockfall protection and surface protection applications.
Double twisted hexagonal mesh is the main part of the system. It is generally fastened onto the slope or rock surfaces tightly with soil or rock nails, rope anchors and spike plates through prestressed tension. On moderately steep slopes, or those where some vegetation may grow, the hexagonal mesh should be kept as close to the slope as possible. On very steep or near vertical slopes, the hexagonal mesh must be anchored at the top of the cliff, and left unanchored at the bottom, thereby allowing rocks and debris to fall into a collection ditch at the toe of the slope. The hexagonal mesh often works with reinforced rockcon system or ring net system as a secondary mesh to strengthen the overall performance of these systems.
| Model | H60/80/2.7 | H80/100/2.7 | H80/100/3.0 |
|---|---|---|---|
| Mesh Size (mm) | 60 × 80 | 80 × 100 | 80 × 100 |
| Mesh Opening (mm) | 60 | 80 | 80 |
| Wire Diameter (mm) | 2.7 | 2.7 | 3.0 |
| Selvedge Wire Diameter | 3.4 | 3.4 | 3.9 |
| Number of Mesh Openings, Length (per m) | 17 | 13 | 13 |
| Number of Mesh Openings, Width (per m) | 13 | 10 | 10 |
| Fastener Diameter | 3.0 | 3.0 | 3.0 |
| Roll Length (m) | 25 | 25 | 25 |
| Roll Width (m) | 3.0 | 3.0 | 3.0 |
| Model | H60/80/2.7 | H80/100/2.7 | H80/100/3.0 |
|---|---|---|---|
| Wire Diameter (mm) | 2.7 | 2.7 | 3.0 |
| Wire Tensile Strength (N/mm2) | 350–550 | 350–550 | 350–550 |
| Wire Elongation (%) | ＞ 10 | ＞ 10 | ＞ 10 |
| Min. Mass of Coating (g/m2) | 245 | 245 | 255 |
| Mesh Opening (mm) | 60 × 80 | 80 × 100 | 80 × 100 |
| Mesh Tensile Strength, Lengthwise (kN/m) | 44 | 52 | 62 |
| Mesh Tensile Strength, Crosswise (kN/m) | 23 | 27 | 29 |
| Mesh Puncture Strength (kN) | Not applicable | Not applicable | 32 |
Hexagonal Mesh
Rope Anchor
Spike Plate
Sewing & Boundary Ropes
Steel Rings
Hexagonal Mesh
Hexagonal mesh, also known as double twisted hexagonal mesh, is the main part of the whole hexagonal netting system. The mesh is constructed from strands of wire twisted with three half revolutions (i.e 1.5 turns) and result in a non-raveling mesh that has a hexagonal opening. Due to the characteristics of the double twist, the wire mesh can withstand the punching force of falling rocks without unraveling in the event of wire breakage.
Rope Anchor
It is made of high-tensile steel wires with 1770 N/mm2 tensile strength rope loop with double steel pipe and excellent corrosion resistance. It is insensitive to impact and is suitable for diverting forces in the direction of tension that can deviate by up to 30° from the drill axis without loss of supporting capacity.
Spike Plate
It is commonly used with nails to fasten the hexagonal mesh onto the slope firmly to provide a more stable and firm structure.
Sewing & Boundary Ropes
Sewing rope is often used to fasten two adjacent neighbor hexagonal mesh panels. But there's overlaps when using the sewing ropes. Boundary ropes pass through the hexagonal mesh and then be fixed onto the anchor and enable the firmly stable.
Steel Rings
It is used to fix two sewing ropes to provide a firm connection between wire ropes and hexagonal mesh and enhance the overall tensile strength of the whole system.
