DCP Bolt, 579kN

Features

Superior performance — On-site assembly to any length
Double Corrosion Protection (DCP) consisting of corrugated plastic sheathing and cement grout.
Stressable with hydraulic jack immediately after installation. Hydraulic jack sitting on shoulder of hemispherical seat.
Direct load transfer from anchor head to expansion shell. Compressed rock mass between expansion shell and anchor head.
Up to 30° angle compensation at anchor head.

Categories: DCP Bolt, 310 kN, DSI Underground, Tunneling

Description

Description

Tunneling Products & Systems – DCP Bolt, 579kN

1. Ductile Expansion Shell – 200 kN Capacity
2. Corrugated Plastic Sheath – 42 mm O.D.
3. Tape
4. O-Ring Seal
5. Domed Plate
6. Hemispherical Seat
7. Screw-On Steel Cap

Stressing Set Up

1. Stressing Jack
2. Stressing Chair
3. Stressing Coupler

One stage field grouting: Grout flows between tensioned bolt and sheathing and then between sheathing and bore hole wall.
Anchors can be inclined upwards or downwards.
Use of thixotropic grouts recommended.
After grouting, full bolt length will bond to the rock.
Protection of hex nut by screw-on steel cap.
All exposed parts are galvanized.
Recommended injection rate of cement grout: 10 litre/minute.
Dry pack and vent tube may be required.