Our References - Trust that lasts

27,360 m of temporary strand anchors for a king pile retaining wall and 5,000 m of permanent soil nails were supplied for the  A 60 roadimprovement scheme at Mainzer Ring.

The majority of the 198 temporary strand anchors at the hydro-electric power plant Gottfrieding were also installed to resist hydrostatic water pressure.

For the expansion of the Johann Wolfgang Göthe University Hospital in Frankfurt, SPANTEC produced and delivered approximately 900 strand anchors totaling in length of 20 km (est. 75´000 m strand material).

The construction of a complex deep excavation pit for the Pasing Arcades in Munich required 300 temporary strand anchors with a total length of 5000 m.

During construction of the ’Kleine Olympiahalle’ in Munich, 100 temporary and 8 permanent strand anchors were installed to facilitate relocation of the tension foundations for the main cables of the world-famous cable net roof.

Frankfurt Airport has been extended for the new Airbus A 380. A total of 780 temporary strand anchors with a combined length of 10,600 m were installed.

For the support of an underpinning SPANTEC - Klappanker with working loads up to 80 kN were installed.

For the extension of the Katharinen Hospital in Stuttgart a deep excavation had to be constructed into an existing slope. The 24 m deep cut was secured by twelve rows of intersecting anchors.

During the construction of a new lock on the Mittelland Canal tens of thousands of meters of temporary strand anchors were installed to resist hydrostatic uplift pressures.

237 temporary strand anchors with a total length of 5,300 m have been incorporated in the new Paderborner Volksbank building.

For the demolition of a railway bridge, the suspension for the crawler crane was fixed with each 24 pieces of thread bars Ǿ 63,5 mm in St 555/700.

The bored pile retaining wall for the new SWR Studio and office building in Stuttgart has been tied back with 600 temporary strand anchors with a total length of 13,000 m.

In this project we have covered bored piles diameter 500 mm and 800 mm with Bullflex®– sleeve-hoses

For a slope stabilization beneath a high magnetic test instrument GRP All-thread bolts typ 28/32 were installed.

In connection with the enlargement of the lock canal Langwedel /Weser the new sheet pile walls were anchored by Spantec Micropiles Ǿ 40 mm und 63,5 mm.

The project Stuttgart 21 - the relocating of the railway station under the earth and thus a significant trans- formation of the Stuttgart city center - has its own history and is seen very controversial. After more than 15 years of planning finally in 2010 construction began. The goal is to convert the existing dead end train station into a pass through station to provide for a rapid east-west link between Stuttgart and Ulm as a continuation of the fast train line Mannheim-Stuttgart.

Stuttgart 21 is considered the project of the century. The construction companies are faced with enormous logistical and technical challenges on a daily basis.

SPANTEC has met high standards for all anchoring concept. Viable and economically feasible proposals were provided by SPANTEC which could sometimes be a challenge with the many parallel construction phases forming part of the entire construction site. In addition the quality and documentation requirements imposed by Deutsche Bahn had to be followed.

SPANTEC can rely on its experience and its wide range of products in order to deliver to such a massive project. SPANTEC supplies construction sites all kinds of anchors, micro piles and soil nails with all sorts  of different requirements for durability and sustainability, load bearing structures, load cells and tension equipment

It was decided to completely redesign the entire harbor area of Aarhus, the second largest business loca- tion in Denmark. In the years that followed extensive planning was underway which was then implemented step by step.

Over several kilometers sheet piles were rammed into the ground and tied back with thousands of anchors provided by SPANTEC. One challenge was the unsustainable and inhomogeneous building ground which was also contaminated with aggressive chemicals. Pressing water created an additional challenge.

Part of the construction area had been used in the past as an open coal storage area. Over decades, rain and water caused chemical processes which formed all kinds of sulfur compounds. For the construction workflow, these stresses were difficult conditions as they demonstrated to be very aggressive.

To optimize the anchor loads at the constructions site, tests showed the best way to diminish erosion was  to use a staggered amount of force. So in a variety of strand anchors the bond length of the anchors were divided into two parts and installed a special variant of the stages anchor. The heads had to be sealed off from the outside at the forthcoming sheet piling water pressure.

With a budget of about 1.9 billion Danish kroner - the equivalent of about 255 million euros - the Urban Media Space Aarhus is the largest construction project in the history of the city of Aarhus. The entire waterfront includes approximately 23,000 m², which is about four football fields.

The Media Space, a cutting-edge form of the library has around 350,000 items such as books, magazines, movies, music and games, for both children and adults. On the roof of the building there are 3,300 m² solar cells that generate energy for the entire house and thus ensure an ecologically valuable energy consumption.

An automatic parking system of Media Space is the largest of its kind in Europe and can accommodate 1000 vehicles. SPANTEC provided for excavation 770 pieces permanent bar anchors with a steel Ø 36 mm and a steel grade St 950/1050 with lengths up to 35 m. A total of almost 25,000 m anchors were installed. The challenge was, in essence, to protect the anchor heads and the transition to building against pressing and aggressive water. For this purpose, a special head design had been developed and installed success- fully.

In the danish harbour city Helsingør, Spantec delivered over 460 double corrosion protected piles with length of 35 - 37,5 m.

In Arhus we had to deliver more than 15.000 m of stand anchors for an anchorage of a construction pit wall which was needed because Bestseller a publishing house built a new headquater. The anchors had been stressed with our new designed carbon fiber jacks. They used more than 700 special anchors with a bond length which was interrupted several times.
 

The country's largest bank, Danske Bank, is building a new corporate headquarters in the Danish capital Copenhagen. To create space for this major project, the old Copenhagen post office was demolished, creating an excavation pit covering an area of 35,000 m².  
The two-layer back anchoring of the sheet pile wall shoring is carried out with the help of partially conventional semi-permanent strand anchors with a service life of up to five years. The north-eastern part of the five-sided excavation pit adjoins an undeveloped plot of land belonging to the Danish state railroad, which does not want any disturbing elements in the ground under its expansion area.

It was therefore decided, in close cooperation with Per Aarsleff and all the companies involved in the construction, to install SPANTEC GRP anchors in this section.

A total of 110 SPANTEC GRP anchors with 3-8 strands and a length of up to 30m were installed. The anchors are permanently monitored with the aid of load cells and the anchor forces determined are documented.

The acceptance test, as well as the fixing of the anchors for our newly developed SPANTEC GRP anchors, was carried out with the help of our own stressing unit under the supervision of our stressing engineer.

As part of the energy revolution, especially in wind energy the demand for wind power towers has experienced a significant increase. Currently the demand for wind power towers is so high that the implementation is hard to accomplish.  This trend does not just exist in Germany but in all of Europe. Across Europe, hundreds of new systems are being installed.  In contrast to Germany, where wind   turbines   are   often   secured   by   gravity   foundations, the securing of the towers in Scandinavia is mostly done with anchors.  As one of the leading manufacturers of anchors in Europe, SPANTEC also provides anchors for the securing of towers for wind turbines. The images show the remarkable anchors used on a wind farm in Finland. The windmills, which have to be built on these foundations have a hub height of 120 m. Furthermore, SPANTEC supplies stressing equipment that fulfils the special requirements needed in the tower business.  The products range from a small hand pump up to 500 t jacks. Of course, all of this equipment in light weight construction.

In this project the walls were anchored wih 3100 m bar anchors, grade St 950/1050 in
length up to 37,50 m.

Spantec delivered 207 permanent bar anchors Ø32 mm with length up to 30 m.

The PSW Vianden in Luxembourg is currently being expanded by a 200 MW pump turbine to a total of 11 turbines. A 34 m high shoring was required for the construction of the outlet structure, which had to be secured with 13 anchorages. The company Feilux GmbH from Luxembourg was awarded the contract for this and installed a total of 308 strands of temporary SPANTEC system anchors of steel grade St 1570/1770 with 2 to 7 strands on average 30 m long in a professional and timely manner. To register movements in the shoring wall, 12 KMD 1000/104 load cells were also installed.

700 permanent strand anchors were employed in a complete overhaul of the Middelburg Aqueduct in the Netherlands.

The Dutch highway A58 leads as a link between the mainland and the island of Zeeland by the Vlaketunnel. To control flotation the ramp areas  were 63.5 mm diameter grouted piles in 1250 with double corrosion protection in length from 27,00 - 34,00 m delivered and installed. The side walls were secured with 136 pieces permanent strand anchors with 3-8 strands in lengths ranging from 18.00 to 31.00 m.

For the prestigious project Saudi-Arabia high speed train, which links the cities Mekka and Medina, SPANTEC was requested to deliver part galvanized screwable thread bars and accessories to adapt the masts with the foundation.

At the north portal of the Gotthard Base Tunnel the bored pile retaining walls were anchored back by up to 70 m long permanent strand anchors.

To secure a permanent backup of a 50 meter high steep slope, aside a highly frequented motorway, more than 240 SPANTEC permanent bar anchors with a total length of 3250 m have been delivered and installed.

The docking points for ferries were extended in the port of Palma de Mallorca. For this purpose, 1500 m of SPANTEC bar grouted piles Ø 50 mm were installed. The piles were covered with fabric bags to protect the environment and to control the cement suspension.