Reinforced Rockcon System for Irregular Rock Surface

Reinforced rockcon system, as its name implies, is a kind of reinforced rockcon mesh system specially designed to secure loose rocks, rock spurs and overhangs as well as unstable rock formations with irregular surface and coarse block weathering.

It mainly consists of reinforced rockcon mesh, rock nails, claw type spike plates, rope anchors, shackles and boundary ropes. Reinforced rockcon mesh is extremely tough, abrasion-proof and can be pulled unsparingly over sharp rock edges without being damaged. In addition, it has a load capacity of 220 kN/m lengthwise, which allows it bearing higher static load than Rockcon® mesh and tightly securing around protruding rock boulders. Meanwhile, the firmly fastened reinforced mesh can absorb substantially high forces and transfer them onto the entire system. As a result, it guarantees the integrity of the whole mesh system and extends the service life of the mesh system. All these features make it a cost-effective alternative to supporting structures, shotcrete walls and conventional protection measures. As the reinforced mesh has a large mesh opening and cannot stop the movement of small rocks, it generally works with Rockcon® mesh or hexagonal mesh to increase the stability of rock slope.

High Tensile Strength

The overall performance of the reinforced rockcon system largely depends on its tensile strength and puncture strength as they determine how the mesh performs in association with the specific anchor plate. The triple-twisted wire mesh provides at least 220 kN/m load capacity lengthwise, together with its rhomboid mesh, make the system withstands high impact forces and transfers them to the entire system thereby extending its service life.

Topographic Fit

The reinforced rockcon mesh is generally fastened onto the mountain or slope surfaces tightly with soil or rock nails and spike plates through prestressed tension. The wire used for manufacturing the reinforced rockcon mesh is high tensile yet retains its malleable nature. This, in combination with its rhomboid mesh form, allows it adapting to almost all topographies and helping to maximize contact with the slope.

Reasonable Anchor Layout

An array of claw type spike plates and soil or rock nails are arranged in a matrix to fix the reinforced rockcon mesh firmly on the slope surface and ensure the optimal load distribution within the entire system. The anchor spacing, depth and type must be designed by a geotechnical engineer to properly accommodate the expected forces and to reduce maintenance.
Reinforced rockcon system diagram and corresponding components.
  • Reinforced rockcon mesh fabric details

    Reinforced Rockcon Mesh

  • Galvanized soil or rock nail

    Soil or Rock Nail

  • Claw type spike plate

    Claw Type Spike Plate

  • Rope anchor

    Rope Anchor

  • Anchor Shackles for reinforced rockcon mesh connection

    Anchor Shackles

  • A coil of high tensile steel rope

    Sewing & Boundary Ropes

  • Galvanized Wire Rope Clip

    Wire Rope Clips

Reinforced rockcon mesh fabric details

Reinforced Rockcon Mesh

Reinforced Rockcon Mesh

It is the most important part of the reinforced rockcon system. Much like the Rockcon® mesh, it is also made of high tensile steel wire with a diameter of 3 or 4 mm and a tensile strength of at least 1770 N/mm2. The main difference lays in three strands of high tensile steel wire are twisted first and then made into a rhomboid shape, therefore, it is also known as spiral rope mesh. It features a rhomboidal-shaped mesh with a mesh width of 130 mm. Its knotted ends permit the full transmission of force to the adjoining panel and ensure the maximally stable of the structure. Besides, it makes the reinforced rockcon mesh rolls easy unrolled and installed.

Specification

  • Wire diameter 3.0, 4.0 mm.
  • Mesh size 130 mm.
  • Roll width 3.3, 3.5 m.
  • Roll length 20 m.
  • Material high tensile steel wire.
  • Compound 95% Zn + 5% Al
  • Tensile strength ≥ 1770 N/mm2.
  • Coating 115 g/m2.
  • Executive standard EAD 230025-00-0106.

High-tensile steel wire

High tensile steel wire has above 1770 N/mm2 tensile strength to keep the stability and tensioned structure for slope protection.

Rhomboid mesh structure

It is designed to work in perfect harmony with the resting part and make sure the forces are transferred efficiently over the entire system.

Knotted ends

Knotted ends can prevent loose and ensure the maximally stable of the structure. Besides, it makes the reinforced rockcon mesh rolls easy unrolled and installation.

Corrosion & rust protection

Special aluminum-zinc coating can extend the service life of Reinforced rockcon system and protect system from sun exposure, corrosion and rusts.

Lightweight

Outstanding strength-to-weight ratio makes transport and installation easier. It supplies long-term stability for unstable slopes with minimal visual impact.

Balanced Stiffness

High static and dynamic load capacities with optimal deformations to ensure the integrity of the Reinforced rockcon system.

Galvanized soil or rock nail

Soil or Rock Nail

Soil or Rock Nail

It is commonly used with claw type spike plate to fix the reinforced rockcon mesh onto the mountain. High tensile strength and solid structure make it be long service life and in good conditions.

Specification

  • Minimum length 2 m.
  • Diameter 25, 28, 32, 40 mm.
  • Horizontal spacing 2–3.5 m.
  • Diagonal spacing 2–3.5 m.
Claw type spike plate

Claw Type Spike Plate

Claw type spike plate

It is commonly used with nails to fasten the reinforce rockcon mesh onto the slope firmly. The unique claw design makes the spike plate be a more stable and firm structure.

Specification

  • Length 330, 667 mm.
  • Width 205, 300 mm.
  • Thickness 7 mm.
  • Hole Diameter 40, 50 mm.
  • Minimum length of the spikes 20, 30 mm.
  • Longitudinal bending resistance 1.25, 2.5, 8 kN/m.
Rope anchor

Rope Anchor

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 mainly used to fix the reinforced rockcon mesh onto the rock for easy and reliable boundary ropes tensioning/fixation. In order to tension the boundary ropes sufficiently by sections, rope anchors shall not as a rule lie further than 25–25 m apart from each other to supply the whole stability to the rock slope and the reinforced rockcon system.

Specification

  • Rope diameter 14.5 mm.
  • Working load 195 kN/m.
  • Length to subsoil 2.0–4.0 m
  • Minimum borehole diameter 55, 70, 90 mm.
Anchor Shackles for reinforced rockcon mesh connection

Anchor Shackles

Anchor Shackles

Anchor shackles have a rounded shape, which allows them to take loads from many directions without developing significant side load. It works great in applications that are temporary, or require repeated quick connections or disconnections. In this system, it generally used for force-locked connecting of two individual reinforced rockcon mesh panels. If the shackles are not theft-proof type, the thread shall be secured with high viscosity glue.

Specification

  • Diameter 9.5 mm.
A coil of high tensile steel rope

Sewing & Boundary Ropes

Sewing & Boundary Ropes

Sewing rope is an alternative to the shackles to fasten two adjacent reinforced rockcon mesh panels. Boundary ropes can be pulled through the reinforced rockcon mesh and then fastened laterally onto rope anchors to make the reinforced rockcon mesh firmly fastened onto the rock slope. If the top boundary rope must absorb significant forces, it is recommended to hold it at regular interval of 2.0–3.5 m by means of rope anchors.

Specification

  • Diameter 14 mm.
  • Minimum breaking strength 124 kN.
Galvanized Wire Rope Clip

Wire Rope Clips

Wire Rope Clips

Wire rope clip, also known as u-clip or wire rope clamp, is used to fix the loose end of the loop back to the wire rope. It usually consists of a U-shaped bolt, a forged or cast saddle and two nuts. The two layers of wire rope are placed in the U-bolt. If the wire rope clips are not theft-proof type, the thread shall be secured with high viscosity glue.

Specification

  • U-clip inner diameter 14 mm.