^Fundex® Pull Anchor with Grout Injection

Anchor dimensions:
Standard dimensions are: 

Anchor length:
Approximately 30 to 42 meters. The anchor is installed from ground level. Consequently, the installation length is measured from the tip of the pile to ground level.

Reinforcement:
The anchors are equipped with a single-length central reinforcing bar. It is also possible to use a bundle of bars if necessary.

Grout:
The anchors are provided with a grout shell and a central grout core during installation. Various grout compositions can be used for this purpose.

Soil-bearing capacity:
NL: The bearing capacity is calculated in accordance with current EC, NEN, and CUR standards. 
B: The bearing capacity is calculated in accordance with current EC, NBN, and CUR standards.

Procedure:

• A steel guide pipe, fitted with a detachable drill bit, is placed at ground level;
• The pipe is driven to the desired depth by applying axial pressure and torque while injecting grout;
• When the desired pile tip elevation is reached, a central reinforcing bar is placed inside the pipe;
• The pipe is filled with a grout mixture;
• The pipe is pulled out, causing the mixed-in-place grout shell to mix with the grout mixture. The drill bit remains in place;
• The anchor is now complete;
• The rig be moved to the next anchorage;
• After installation, the anchor can be fitted with a head plate that is cast into the structure.

Advantages:

• Vibration-free and 100% soil-displacing (no soil loosening or reduction in cone resistance)
• No risk of damage to adjacent properties during pile construction;
• A high towing capacity is permitted;
• No noise pollution, unlike with pile driving or vibration. The only noise is the drill motor;
• No soil discharge. Soil is pushed out to the side.
• The anchor can be installed at a deeper level.

Suitable soil conditions:
Fundex tension anchors with grout injection are well-suited for use in very heavy soil layers.

Bracing positions:
Up to 4:1 forward and 2:1 backward.

Work area:
Sufficient headroom and space are required for the installation of the Fundex tie rod.

Adjacent walls:
The anchors can be installed at a distance of approximately 0.9 m perpendicular to the adjacent structure. At recessed corners, this distance is naturally greater.

Available rigs:
Fundex F12SE, F15, F2800, and F3500.

Dimensions rigs:
Depends on type rig. Most common;
siding approximately 7 x 12 m. Height rig approximately 35 m.
Built-up weight variable from approximately 63 to 120 tons .