#micro-piles

Micro-piles, also known as mini piles, are a highly effective deep foundation solution used in construction projects where soil conditions are challenging or access is limited. These small-diameter piles provide excellent load-bearing capacity and are widely used for structural support, repair, and reinforcement.

What are Micro-Piles?

Micro-piles are drilled and grouted piles with a diameter typically ranging from 100 mm to 300 mm. They are reinforced with steel bars or casings and installed using specialized drilling equipment. Due to their flexibility and strength, micro-piles are suitable for both new construction and foundation strengthening projects.

Key Features of Micro-Piles

Suitable for restricted access areas

Minimal vibration and noise during installation

Can be installed in various soil and rock conditions

High load-carrying capacity

Ideal for underpinning and retrofitting

Types of Micro-Piles

1. Grouted Micro-Piles

These piles are filled with cement grout to provide strength and durability.

2. Driven Micro-Piles

Installed by driving steel elements into the ground, suitable for certain soil conditions.

3. Drilled Micro-Piles

Constructed by drilling into the ground and filling with reinforcement and grout.

4. Hollow Bar Micro-Piles

Use hollow steel bars that allow simultaneous drilling and grouting.

Applications of Micro-Piles

Foundation support in weak soil conditions

Underpinning existing structures

Bridge and highway construction

Slope stabilization projects

Seismic retrofitting of buildings

Urban construction with limited space

Advantages of Micro-Piles

Easy installation in confined spaces

Reduced environmental impact

High precision and adaptability

Suitable for difficult ground conditions

Cost-effective for rehabilitation projects

Limitations of Micro-Piles

Requires skilled labor and specialized equipment

Not ideal for extremely heavy loads compared to large piles

Higher cost per unit length in some cases

Micro-Piles vs Traditional Piling