Special civil engineering for stable ground: micropiles, screw foundations and building underpinning throughout Germany
Dr. Dietrichs & Sohn GmbH
Neutornow 38a, 16259 Bad Freienwalde (OT Schiffmühle) · Operating nationwideNew on Amplifa
About the company
Dr. Dietrichs & Sohn GmbH is a family-run special civil engineering and engineering consultancy based in Bad Freienwalde (Schiffmühle district), Brandenburg. Founded in 2009 through the merger of Ingenieurbüro Dr. I. Dietrichs with Büro für Baugrundverbesserung (BfB) Nils Dietrichs, the company offers tailored technical solutions to prevent or halt the settling and cracking of building structures and to stabilise subsoils. Core services include micropiles as small-diameter bored piles in accordance with DIN EN 14199 with diameters under 30 cm, environmentally friendly screw foundations made of galvanised steel pipes without the use of concrete, as well as building and foundation underpinning. In addition, subsoil investigations, geotechnical reports, soil improvement by means of stabilisation columns and concrete columns, and foundation retention are carried out. The 13-member team works nationwide for residential construction, commercial and industrial construction, renovation, landscaping, solar installations and container construction.
- Site
- Bad Freienwalde / OT Schiffmühle
- Processes
- Micropiles (small-diameter bored piles in accordance with DIN EN 14199), Micropiles with pile diameter 22 cm, load capacity approx. 280 kN design action, Screw foundations (environmentally friendly alternative to concrete piles, without concrete), Building underpinning (underpinning of strip or individual foundations), Subsoil investigation / geotechnical report, Soil improvement by means of stabilisation columns (in accordance with the guideline for the, Foundation retention, Production of concrete columns
- Materials
- Galvanised steel pipes, GEWI steel (single-bar GEWI piles), Concrete, Concrete with reinforcement cage
- Certificates
- DIN EN 14199 (micropiles), Approval Z-32.1-2 (GEWI piles), ISO 9001
- Founded
- 2009-04-01
- Employees
- 13
- Industries
- Construction / civil engineering, Special civil engineering, Residential construction (single-/multi-family houses), Commercial and industrial construction, Renovation / building damage remediation, Landscaping (GaLa-Bau)
- 01
Subsoil investigation and geotechnical report
- 02
Consulting and selection of the technical solution
- 03
Installation of micropiles or screw foundations
- 04
Soil improvement / foundation retention
- 05
Acceptance of the building project
Materials and processes
Concrete with reinforcement cage
For micropiles with a 22 cm diameter (load capacity approx. 280 kN design action) as well as concrete columns and underpinning.
GEWI steel (single-bar GEWI piles)
Single-bar piles in accordance with building authority approval Z-32.1-2 for individual cases.
Galvanised steel pipes
Material of the screw foundations as a concrete-free, environmentally friendly alternative for loads up to 10 t.
Site
Bad Freienwalde (OT Schiffmühle)
DEHeadquarters, office and operations
- Materials
- Concrete, GEWI steel, galvanised steel pipes
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Micropiles (small-diameter bored piles in accordance with DIN EN 14199)Guss | – | – | – | – | Concrete with reinforcement cage, Steel (single-bar GEWI piles gemäß Zulassung Z-32.1-2) |
| Micropiles with pile diameter 22 cm, load capacity approx. 280 kN design actionGuss | – | 22 cm (diameter) | – | – | Concrete (reinforcement cage), GEWI steel |
| Screw foundations (environmentally friendly alternative to concrete piles, without concrete)Montage | – | – | up to 10 t (not applicable for loads >) | – | galvanised steel pipes |
| Building underpinning (underpinning of strip or individual foundations)Montage | – | – | – | – | Concrete, Steel |
| Subsoil investigation / geotechnical reportPrüfung | – | – | – | – | – |
| Soil improvement by means of stabilisation columns (in accordance with the guideline for theGuss | – | – | – | – | – |
| Foundation retentionMontage | – | – | – | – | – |
| Production of concrete columnsGuss | – | – | – | – | Concrete |
| Production of micropiles with diameter < 300 mmGuss | – | < 300 mm (diameter) | – | – | Concrete |
Additional services
Reference customers
Quality
Work is carried out in accordance with recognised standards such as DIN EN 14199 for micropiles and the guideline for the production, design and quality assurance of stabilisation columns; single-bar GEWI piles comply with approval Z-32.1-2. For screw foundations, a project-specific type approval is currently required; a building authority approval is expected.
| Evidence | Bad Freienwalde (OT Schiffmühle) |
|---|---|
| DIN EN 14199 (micropiles) | |
| Approval Z-32.1-2 (GEWI piles) | |
| ISO 9001 |
History
- 1990
Foundation of Ingenieurbüro Dr. I. Dietrichs (existed until the end of 2016); focus on geotechnical reports for almost all sectors of the economy.
- 2001
Foundation of Büro für Baugrundverbesserung (BfB) Nils Dietrichs; primarily the installation of micropiles (Ø < 300 mm).
- 2009
Foundation of Dr. Dietrichs & Sohn GmbH on 01.04.2009 through the merger of both offices.