Mini piling is a perfect choice for projects that have limited headroom or where pollution and disruption must be kept to a minimum. In this blog we will cover the benefits of mini-piling rigs and why you should pick them as your foundation choice.
A mini or micro piling rig is a type of piling that has a smaller diameter than standard piling. Because of this they are light weight and affordable while still being able to endure high weights. The most popular sort of mini piling is a hollow steel shaft fastened or drilled into the ground.
Benefits
These machines can be used to strengthen existing structures – Mini-piling is a excellent way to add strength to the foundation of an existing structure including bridges, buildings and retaining walls. It may also be required as a replacement for traditional footing for new projects whereby ground conditions are not suitable.
They can be used in projects where the space is limited, this is one of their main advantages that they can be used in conditions where area is tight. For example, adding an extension to an existing structure, a mini piling rig makes it much easier for builders.
They are ideal for saving time – In conjunction with the previous point, using mini-piling as a foundation method can save time.
These small yet might machines reach deeper levels – Mini-piling can reach greater depths with ease in comparison to other methods.
Reduced carbon footprint – mini piling is an excellent choice for projects aiming to minimize their carbon footprint. This method uses significantly less concrete compared to conventional piling and other foundation techniques, thereby reducing the overall carbon emissions associated with the foundation work.
Minimal Disruption – due to its ease of installation, mini piling is ideal for built-up areas, as it causes minimal disturbance to surrounding structures. This makes it a practical solution for projects in densely populated regions.
Methods of Mini Piling
Below are the most common methods of mini piling:
Augered Piling
This method is both time and cost-efficient, typically used in cohesive soils. Augers are spun into the ground, and temporary casings can be used to stabilize the bore in unstable ground. After determining the pile length, steel reinforcement is installed, and the bore is filled with concrete or grout.
SFA (Sectional Flight Auger) Piling
SFA piling is an alternative when CFA rigs are impractical, such as in areas with insufficient headroom. Suitable for unobstructed ground conditions with limited access or low working heights, SFA piling is also commonly used in made-up land and areas with high water tables.
Bottom-Driven Mini Piling
This versatile method is suitable for various terrain conditions. It involves using an internal drop hammer to drive a closed-ended thin-walled steel tube into a dry concrete plug, with pile lengths ranging from 2 to 6 meters.
The tubes are subsequently joined using a fillet weld until the pile reaches the required length. Afterward, the tubes are filled with high-strength concrete or grout, and a single reinforcing bar or cage is inserted.
Omnia Machinery is an industry expert in used construction equipment and a trusted machinery trader. We stock a wide variety of quality used construction equipment, to suit many different jobs, such as cranes, road equipment, quarry, earthmoving, piling, drilling, and underground mining. We provide our customers with all information and pictures with their quotation before any sale is agreed upon. From inspections to shipping, we are here to support you through every step of the transaction and keep you informed throughout the whole process enabling you to purchase in confidence. Contact us today with your machinery requirements.