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purpose of mini piling

What is Mini Piling?

Mini piling is a foundation construction method involving the installation of small-diameter piles into the ground to support a structure. The piles are typically made of steel or concrete and are installed by creating a borehole. The method is used for various structures, including residential, commercial and industrial buildings, bridges, and retaining walls.

Purpose of Mini Piling

Mini piling is particularly useful when the soil conditions are poor, or the site is constrained, and traditional foundation methods such as strip foundations or spread foundations are not feasible. It is also useful for underpinning existing structures where the foundation needs to be strengthened or extended.

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Mini Piling Methods

There are different types of mini-piling methods, such as:
  • Driven Piles: Piles are driven into the ground using a pile driver typically made of steel; these piles are installed to a set depth utilising a hammer or vibratory hammer.
  • Bored Piles: These piles are constructed by excavating a hole in the ground and then filling it with concrete and reinforcing steel. The hole is typically bored using a rotary or percussion drill.
  • Mini Screw Piles: In this, piles are screwed into the ground using a torque motor. It is most commonly used in sandy soils, as it can be installed quickly and with minimal disturbance to the surrounding soil.
  • Mini Displacement Piles: These piles are installed by pushing a steel pipe into the soil and then filling the pipe with concrete. The pipe is then withdrawn, leaving the concrete pile in place.
  • Mini Sheet Piling: A series of steel sheets are interlocked to form retaining walls. They are used where soil retention is required for the time being: these sheets can be removed and reused on other construction sites once the groundwork has been done.

Mini piling is an efficient and cost-effective foundation construction method that can provide a stable and secure foundation for various structures in difficult soil conditions. It is also a quick foundation construction method and can be used in confined spaces.

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Advantages of Mini Piling

Mini piling has several advantages over traditional foundation construction methods:
  • Suitability for Poor Soil Conditions: Mini piling is best when the soil conditions are poor and cannot support the structure, such as soft clay, loose sand, or fill material. It provides a stable and secure building foundation in these conditions.
  • Access: Mini piling can be used in confined spaces or areas with limited access, where traditional foundation methods may not be able to work.
  • Load-Bearing Capacity: It can provide a high load-bearing capacity, making it suitable for constructing tall buildings or structures with heavy loads.
  • Durability: Mini piles are often made of steel or reinforced concrete, which have a long service life and provide a durable foundation for the structure.

Factors to Consider While Choosing Mini Piling

To determine if mini pile foundations are the right option for a construction project, several factors should be considered, including:
  • Soil Conditions: One of the main factors to consider when deciding if mini piling is the right option is the soil conditions at the site. If the soil is poor or unstable, mini piling may be the best option as it can provide a strong foundation.
  • Load-Bearing Capacity: The soil’s load-bearing capacity should also be considered when deciding if mini piling is the right option. If the structure requires a high load-bearing capacity, mini-piling may be the best option.
  • Site Accessibility: Considering the factor of site accessibility is also necessary for deciding if mini pile installation is suitable. If the site has limited access or is confined, mini-piling may be the best option, as it can be carried out in these conditions.
  • Time Frame: Mini piling is a quick foundation construction method, which can be advantageous when time is critical.

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  • Budget: The budget for the project also plays a role in deciding whether a mini-pile foundation is suitable for the project, as mini piling cost is less than traditional piling.
  • Building Design: Mini-piling can provide a stable foundation for various structures, including residential, commercial and other types of buildings. The average mini pile diameter is between 100 and 600mm and they can reach a depth of up to 50m.

Leading Mini Piling Contractors

If you are looking for reliable mini piling specialists, then contacting UK Underpinning Solutions is a wise idea. We take pride in offering bespoke and efficient piling services to all our clients. From start to end, our team ensures you get the best quality, high-standard results. Contact us and get experts to advise, design and install the right piles for you.