Anchor Systems

We provide a comprehensive range of anchors and accessories to meet diverse challenges (quay structures, onshore and offshore wind turbine foundations, tunnels, excavations, retaining walls and slope stabilization).

Piles

In terms of construction, a pile foundation is a type of deep foundation that enables the loads of structures to be transferred to deeper, more stable layers of soil.

When constructing a pile foundation, piles (also known as pilots) are drilled or rammed into the soil until a sufficiently stable layer of soil or stone has been reached. The load of the structure is then firstly transferred through the friction of the piles with the soil (skin friction) and secondly via the point-bearing pressure of the piles.

Anchors

Irrespective of the type of anchor, we make a fundamental distinction between two types of anchor, according to their function: temporary anchors, which are usable for a maximum of two years, and permanent anchors, which primarily meet higher standards of corrosion protection.

Anchor systems that do not require drilling, driving or other equipment for installation are particularly cost-effective. Equipment is only required for handling, due to their high weight.

If enough space is available and any earthmoving is straightforward or necessary anyway, these usually horizontal systems are the ideal solution.

The thyssenkrupp-R and thyssenkrupp-T hollow bar systems are self-drilling anchors (SDA), suitable for drilling with percussion and are fast to install. The core of our self-drilling anchor system is a hot-rolled thick-walled tube. When using a suitable drill head in combination with sufficient drilling capacity and the right skills, thyssenkrupp hollow bar can be installed in every soil condition, suitable for both temporary and permanent applications and is a particularly durable product, protected against corrosion when imbedded into a cement stone body. We can also offer full-scale stock of all necessary components such as couplings and plates. Products are manufactured by SupAnchor.

The thyssenkrupp hollow bar is available in steel grades 40CR, 20CR & Q34B manufactured in accordance with EN10083/3-2006 / EN10084-2008 / EN10025/2-2004.

thyssenkrupp Infrastructure readily has stock available of these hollow bars.

The solution for sheet pile walls

An anchorage employing round steel tie rods is an economical solution for securing a sheet pile wall, which can be adapted to suit the situation. The forces acting on the wall are transferred via the waling to the round steel tie rods and then to the anchor plates or walls. The selection and design of the anchoring structure is done in accordance with static and structural requirements.

Upon request, we can supply a complete package from one source, consisting of the supply and installation of all the anchorage elements and accessories required for sheet piling structures. Apart from anchors and anchor parts, anchor connection elements, walings and waling fixings, sheet pile wall capping beams, recesses, ladders and mooring lugs plus bollards and special components are also part of our range.

Applications

Cofferdams
Ports and harbors
Waterways
Locks

Advantages

Optimum transfer of tensile forces
Better dispersion of bending moments thanks to excellent elasticity
Extendable with the help of couplers or turnbuckles
Minimal surface for corrosion
Adjustable to exact length

thyssenkrupp- ASF drilled injection pile is the name of the new micropile developed by thyssenkrupp Infrastructure in collaboration with specialized civil engineering companies.

The advantage of this innovative anchoring is that the thyssenkrupp ASF drilled injection pile system can introduce extremely high service loads into the subsoil with a small drilling diameter, using special injection techniques. The new micropile is exceptionally robust and hardly deforms. The reason is the high load reserves achieved through the use of tempered steel grades in accordance with DIN EN 10025-2. A special type of thread ensures that the crack widths in the cement body of grout are minimal. Using a Whitworth thread on the anchor head, other components such as load distribution plates, turnbuckles or universal joints can be easily adapted. The thyssenkrupp ASF drilled injection pile system has proven its worth in over 100 reference projects totaling more than 500,000 meters drilled.

Applications

Anchoring in marine and specialized civil engineering
Foundation piles for tension and compression loads
Anchoring in waterway development

Advantages

Designed to withstand maximum strain of up to 7,930 kN –
Approx. 70% more than conventional piles
Can be used as compression and tension piles in accordance with DIN EN 14199
Low steel strain guarantees rapid activation of forces with low deformation
Corrosion protection along the entire length due to the alkaline environment of the cement covering, which saves time and costs
No length limit: up to 35 m deliverable ex-works, unlimited extension possible using coupling sleeve or couplers

Safe anchorage of high tensile forces

Applications:

Quay wall structures

The benefits of fast-action hammers

Particularly suitable for non-cohesive soils
“Vibratory effect” increases load-carrying capacity

In principle, additional deformations cause an increase in the stresses in the pile, which in some circumstances means that the maximum axial force occurs not at the head of the pile but behind the sheet piling. This must be taken into account when designing the piles and the connection to the wall.