About PTC
PTC, a French company created in 1928, is spécialised in the manufacturing of construction equipment equipement for deep foundations and ground improvement.
PTC offers solutions for applications of pile driving (sheet piles, casings, H beams, etc.), as well as vibrocompaction and ballasted columns.
Equipment
Crane Suspended Vibrodrivers
PTC - Urban Range: HFV
High-frequency vibrodrivers equipped with the patented Variable Moment technology. The HFV range is recommended for vibration-sensitive applications such as:
- City centers
- Bridge construction and renovation
- Railways
PTC - Suburban Range: HV
Standard-frequency vibrodrivers equipped with the patented Variable Moment technology. The HV range is a solution between the largest and the most powerful vibrodrivers.
Thanks to the Variable Moment technology, HV range vibrodrivers are adapted to mobile telescopic cranes.
PTC - Heavy Duty Range
Standard-frequency vibrodrivers with fixed eccentric moment.
Thanks to the large range, these “Heavy Duty” vibrodrivers allow for the driving of sheet piles and tubes of large dimensions.
Excavator-Mounted Vibrodrivers
PTC - PHFV Range
High-frequency vibrodrivers equipped with Variable Moment technology (variable eccentric moment).
PTC - PHF Range
PTC - PH Range
High-frequency vibrodrivers with fixed eccentric moment.
Vibrolances
PTC - Vibrocompaction
FOR LAND RECLAMATION AND SAND COMPACTION
The vibrocompaction method is used in granular soils with limited fines content. It uses the vibrolance sustained vibrations to rearrange hte soil particles of non-cohesive soils into a denser state.
The action of the vibrator reduces the inter-granular foces between the soil particles, allowing them to move into a more comapct configuration.
PTC - Ballasted Columns - Top Feed
Stone columns “Top Feed Method” is the more cost-efficient ground improvement method. It requires the use of a free hanging vibrolance that penetrates the ground thanks to the lateral vibrations emitted by its tip. During penetration, the soil is laterally compacted by displacement, allowing the vibrolance to create the hole that will contain the stone column.
PTC - Ballasted Columns - Bottom Feed
The BFS (Bottom Feed System) controls the length and the diameter of the stone column, better than the Top Feed System. In addition, there is no risk of soil collapse while the stone is released, because the Vibrolance is not withdrawn from the ground until the stone column is finished.
Thus, the BFS system allows the contractor to have a continuous production process that results in higher productivity and time savings.
PTC - Ballasted Columns - Bottom Feed - SC rig
PTC - Vibrolances
When land is reclaimed from the seabed or the in-situ soil does not fulfil the requirements of bearing capacity, lateral stability and liquefaction potential, ground improvement techniques with a Vibrolance offer a qualitative and economical solution.
The PTC Vibrolance tool is adapted for a wide variety of ground conditions and can be carried out to almost any depth. The execution is fast and enables large columns of soil to be improved, allowing subsequent structural works to follow quickly.
Another advantage is the environmental friendliness, the soil is treated with natural materials, such as in-situ soil, stones or gravel, rather than with cement, bentonite or steel, used in other deep foundations methods.