GROUND ANCHORS & PASSIVE TIES

Ground anchors and passive ties, are highly versatile and can be used to hold, restrain and support buildings, engineered slopes and a wide range of other structures,They can be permanent or temporary.

Piletec can offer post-stressed ground anchors where accurate lock off forces are required. However, often a simpler, quicker and more cost effective passive tie option can be provided. Passive ties are generally the optimum solution in more competent strata, and where a small amount of movement can be accommodated to generate the required restraining forces. Ground anchors are constructed using strand or bar, whereas passive ties are formed using bar.

TYPES OF GROUND ANCHORS

Strand Anchors

Advantages

Each anchor is customised to suit loading and lengths
Easy storage and assembly due to coiled reels
Easy installation even in tight spaces
No coupler splices
Guaranteed higher safety factor due to multiple tension elements in each anchor
Corrosion protection fabricated in shop
Anchors can be re stressed for testing during service life
Anchors can be outfitted with instrumentation for real time monitoring during service life

Solid Bar Anchor

Solid bar anchors can be used in temporary or permanent applications. Solid bar anchors are available in various grades and are generally hot rolled. They are fully threaded with a coarse thread.

Advantages

Lower grade bars ideal for soil nailing, micro piles and passive anchors, when open holes can be drilled.
Mid grade bar ideal for tower crane bases, turbines.
Corrosion protection is fabricated and applied in shop.

Applications:

Solid bar anchors are typically used with excavation shoring, and retaining walls.

Hollow Bar Anchor/ Soil Nail

This system eliminates the need for casing. Grouting while drilling improves and consolidates the soil. Due to this process the anchor can achieve higher bond values than most post grouting systems.

SOIL NAILING

Advantages

Fast one-step installation
Simultaneous drilling and grouting
Allows the use of smaller equipment at lower cost
Allows low overhead, limited access installation
Improves the ground (densification)
Offers higher skin friction
Total single corrosion protection by design
Applications

Hollow bar anchors are ideal for soil nails, micro piles, and anchors in difficult ground conditions like weathered and decomposed rock, sand and clay soils for either permanent or temporary applications.

Mechanical anchors

The Earth Anchor is driven into the ground with the use of Hydraulic or Pneumatic equipment. When the predetermined depth is reached, the drive rod is removed and the earth anchor is tilted by pulling the anchor rod/rope. After tilting, the anchor is directly ready for use.

Advantages

Standard lightweight equipment
Quick and easy installation
Environmentally friendly
Immediately ready for use
Wide range of applications
Marine Applications
Retaining Walls
Slope Stabilisation
Temporary Works
Tie Backs

Sock Anchors

Our Sock Anchor system for stabilisation of damaged masonry structures, provides an ideal solution for heritage applications, listed building renovations and refurbishment projects where appearance and planning constraints need to be considered. They offer a completely concealed top termination to preserve the original appearance of a structure.