Methods
This is how special civil engineering works.

We are a technology leader in special civil engineering and a competent partner in all phases of the construction project. To illustrate our services, you will find important information about our diverse processes in all areas of specialised civil engineering here.

Short and long versions of our explanatory videos are available for selected procedures. You can currently find an explanatory video for the following methods: atlas pile, soil mixing method, jet grouting, Frankipile NG®, micro pile, diaphragm walls, grouted anchors and soft gel injections.

Safe and economical on any subsoil.

We have the right special civil engineering methods for your construction project:

  • Consulting, planning and construction from a single source.
  • Customised, optimal solutions.
  • Safe and economical.

Atlas pile.

Full displacement drilled piles with high load-bearing capacity. Low-noise and vibration-free production.

Benefits:

  • Lower transport & disposal costs: full soil displacement
  • High acceptance: low-noise & vibration-free
  • LowCO2 footprint: saving on concrete
     

Interested in further technical information?

Do you have any further questions?

Bild einer Gruppeneinteilung und Anschluss der Gefrierköpfe an die Haupt-Soleleitung beim Projekt U5. Man sieht viele Kabel und ein kleines Gerüst über 2 Stockwerke.
© PORR

Ground freezing method.

Minimally invasive method for temporary sealing and soil stabilisation.

Benefits:

  • Environmentally friendly: ground freezing method with brine in a closed system
  • High level of acceptance: Minimally invasive and vibration-free process
  • Economical: No lowering of the groundwater level

Interested in further technical information?

Do you have any further questions?

Soil nailing.

Reliable protection for any terrain.

Benefits:

  • Economical: areas can be quickly secured against debris & landslides
  • Flexible use: adapts to any terrain shape
  • Safe: fire protection guaranteed

More technical information?

Do you have any further questions?

Soil mixing method.

Environmentally friendly and economical excavation support.

Benefits:

  • LowCO2 footprint: saving on cement
  • Economical : existing soil is used
  • Lower transport & disposal costs: minimal soil extraction

Interested in further technical information?

Do you have any further questions?

Picture shows the specialised civil engineering drilling rig in the middle of the construction site
© PORR

Bored piles.

Economical deep foundation element for every subsoil and every construction site situation.

Benefits:

  • Economical: due to low material consumption
  • Safe: due to high load transfer
  • Flexible: production even in confined spaces

Interested in further technical information?

Do you have any further questions?

Bild einer Bohrpfahlwand; Zusätzlich wurde diese mit Verpressankern gesichert
© PORR

Bored pile walls.

Low-deformation and watertight securing of deep construction pits.

Benefits:

  • Safe: can be used in all ground conditions, low-deformation and durable shoring
  • Cost-saving: as a permanent structure, no separate outer wall required
  • High acceptance: low noise & low vibration

Interested in further technical information?

Do you have any further questions?

Bild einer Dichtwand; Fotografiert aus der Baugrube
© PORR

Cut-off walls.

Permanent or temporary sealing with static function as a cost-effective shoring solution.

Benefits:

  • High acceptance: low-noise & vibration-free
  • Safe: low deformation and watertight
  • Economical: slim walls increase the usable area

Interested in further technical information?

Do you have any further questions?

Fertigrammpfähle; Bild zeigt zwei Männer neben einer Maschine mitten auf einem Bauplatz;Die beiden arbeiten an einem Fertigrammpfahl genauer gesagt, einem duktilen Rammpfahl
© PORR

Ductile driven piles.

High-performance displacement pile with short production time as a cost-effective pre-driven pile.

Benefits:

  • Economical: short runtime
  • Lower transport & disposal costs: full soil displacement
  • Flexible: can also be installed in confined spaces

Interested in further technical information?

Do you have any further questions?

Jet grouting.

Secure sealing of construction pits and stabilisation of the soil.

Benefits:

  • Versatile: can be used for a wide range of construction tasks
  • Safe: due to individual adaptation to the subsoil
  • Flexible: can also be installed in confined spaces

Interested in further technical information?

Do you have any further questions?

Frankipile NG®.

Slim driven piles for high loads with optimum adaptation to the subsoil.

Benefits:

  • Economical: due to smaller pile diameters and shorter piles
  • Lower transport & disposal costs: full soil displacement
  • LowCO2 footprint: saving on concrete

Interested in further technical information?

Do you have any further questions?

The picture shows a pile driver. In front of it stands a construction worker.
© PORR

Fundex pile

The slim full displacement drilled pile with low-noise and vibration-free production.

Benefits:

  • Safe: due to high load transfer
  • Lower transport & disposal costs: full soil displacement
  • High acceptance: low-noise & vibration-free

Interested in further technical information?

Do you have any further questions?

Injections.

Injections are used for consolidating and sealing the subsoil or structures.

Benefits:

  • Versatile: can be used for a wide range of construction tasks
  • Safe: due to individual adaptation to the subsoil
  • Flexible: production possible even in confined spaces

Interested in further technical information?

Do you have any further questions?

Masonry renovation.

Repair and restoration of the stability of buildings and structures.

Benefits:

  • On schedule: flexible adaptation thanks to agile planning
  • Economical: special civil engineering and masonry restoration from a single source
  • Qualitative : thanks to high standards and our own certified specialists

Interested in further technical information?

Do you have any further questions?

Micro pile.

The stable post for high loads from our own production.

Benefits:

  • Safe: Adaptation to a wide range of ground conditions
  • Flexible: production even in confined spaces
  • Sustainable: environmentally friendly production in our own factory

Interested in further technical information?

Do you have any further questions?

Production facility
for anchors and micro piles

We prioritise quality.

You can find our certificates and approvals here.

Picture shows two specialised civil engineering machines facing each other.
© PORR

Vibro replacement.

Improves the load-bearing capacity of the subsoil.

Benefits:

  • Lower transport & disposal costs: full soil displacement
  • LowCO2 footprint: no use of cement
  • Economical: due to high daily output

Interested in further technical information?

Do you have any further questions?

Diaphragm walls.

Technically watertight and stable solution for deep construction pits.

Benefits:

  • Cost-saving: as a permanent structure, no separate outer wall required
  • Safe: low deformation and watertight
  • Environmentally friendly: reusable bentonite suspension

Interested in further technical information?

Do you have any further questions?

The picture shows the KBM02 piling rig at the offshore wind turbine factory project in Cuxhaven.
© PORR

Simplex pile.

Cost-effective cast-in-place concrete driven pile for foundations with a large number of piles.

Benefits:

  • Economical: short runtime
  • Lower transport & disposal costs: full soil displacement
  • LowCO2 footprint: saving on concrete

Interested in further technical information?

Do you have any further questions?

Bild einer Baugrube mit Spundwand; eine Leiter lehnt links im Bild
© PORR

Sheet pile walls.

Securing of construction pits and terrain jumps with sealing function.

Benefits:

  • Lower transport & disposal costs: no soil extraction
  • Environmentally friendly: profiles are reusable
  • Flexible: execution independent of weather conditions

Interested in further technical information?

Do you have any further questions?

Technische Broschuere Stahlrohrpfahl

Steel pipe piles.

The economical and quick-to-produce pile for small quantities.

Benefits:

  • Economical: short runtime
  • Lower transport & disposal costs: full soil displacement
  • Flexible: can also be installed in confined spaces

Interested in further technical information?

Do you have any further questions?

Auf dem Bild sieht man rechts eine Trägerbohlwand; diese sichert den Straßendamm am Südschnellweg in hannover
© PORR

Soldier pile shoring

The most cost-effective variant for vertical excavation shoring.

Benefits:

  • Flexible: can be customised to local conditions
  • Safe: can be installed close to existing buildings
  • Environmentally friendly: shoring supports can be reused

Interested in further technical information?

Do you have any further questions?

Grouted anchor.

The safe solution from our own production for construction pits as well as terrain jumps.

Benefits:

  • Flexible and cost-effective: adaptation to a wide range of ground conditions
  • Safe: due to high anchor loads
  • Sustainable: environmentally friendly production in our own factory

Interested in further technical information?

Do you have any further questions?

Production facility
for anchors and micro piles

We prioritise quality.

You can find our certificates and approvals here.

Soft gel injections.

Environmentally friendly and economical sealing against rising groundwater.

Benefits:

  • Low CO2 footprint: minimised use of cement
  • Environmentally friendly: groundwater-compatible ingredients
  • Lower transport & disposal costs: no backflow suspension

Interested in further technical information?

Do you have any further questions?