^Fundex® Combipaal with Grout Injection

pile dimensions:
Standard dimensions are: 

A grout sleeve with the same diameter as the drill bit will be installed in the sand layers.

pile length:
Depending on the pile dimensions and pile tip, the pile length can pile varied. The pile head can also be placed below working level.

Reinforcement:
The piles equipped with precast concrete piles. For quality reasons, they are reinforced along their entire length as standard.

Concrete:
All strength classes can be used here. Concrete minimum C45/55

Soil mechanical bearing capacity:
NL: The bearing capacity is calculated in accordance with current NEN and CUR standards.
The following factors can be applied:
_αp = 0.63
β = 1.0
s = 1.0
_αs = 0.009
_αt = 0.009
B: For questions regarding load capacity, please contact our office.

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;
• Once the desired pile tip elevation is reached, the precast element is placed inside the pipe
• The pipe is filled with grout;
• The pipe is pulled in an oscillating motion, with the drill bit remaining in place;
• The pile now been manufactured;
• The rig be moved to the next pile location.

Advantages:

• Vibration-free and 100% soil displacement (no soil relaxation or cone resistance decline);
• No risk of damage to adjacent properties during pile construction;
• A high load capacity is permissible;
• Ideal for use as a compression or tension post;
• For installation in very heavy soil conditions;
• 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.
• Install at a deeper depth (if necessary, from a pontoon) so that there is no excess length of the concrete column above the cut-off level.

Applicable foundation:
Fundex combination piles with grout injection can be used effectively in very heavy soil layers as well as in very soft soil layers. Thanks to the use of a prefab pile core, there is no risk of a discontinuous pile shaft.

Pile spacing:
Due to the need to center the core, additional measures will need to be taken for piles large bracing spans.

Workspace:
Sufficient headroom and space pile required for the installation of the Fundex pile .

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

Executable rigs:
Fundex F12SE, F15, F2800, F3500, and F4800.

rigs dimensions:
Depending on rig type. Most common:
Setup area approximately 7 x 12 m. rig height rig 48 m.
Assembled weight variable from approximately 63 to 210 tons.