From thousands of orders, we have put together some seminal projects as examples. Due to the project-related, comprehensive cooperation, the services provided each include several specialist areas from contaminated sites to subsoil and environmental informatics.
Interboden New Construction of a Residential and Commerical Building
Alte Wallgasse, Cologne
Period of execution: 2004 - 2005
Excavation pit volume: 11.000 m³
Nature and Scope of the Services Provided:
- Soil investigation
- Planning, tendering and construction supervision of the excavation pit
Special Features
- Excavation pit with hydraulically prestressed inner bracing in the inner city area
- Adjoining acheology / historical structure
Amprion GmbH
New Construction of a Power Line: Dauersberg-Limburg, Bl. 4124 / Weißenthurm-Sechtem, Bl. 4215 / Rommerskirchen-Sechtem, Bl. 4197
Nature and Scope of the Services Provided:
Preliminary geotechnical report on the entire route
- Description of the different geological units and hydrogeological conditions
- Identification of special features (e.g. mining)
- Development of a soil investigation concept
Soil Investigations
- Geotechnical support and organisation of soil investigations (pile-driving core soundings, pile-driving soundings, large-scale drillings)
- Groundwater level research
- Mining enquiries and research
- Preparation of geotechnical reports for each mast site with foundation recommendations (including load-bearing capacity parameters for bored piles), information on soil profiles, groundwater, drillability classes, soil properties and classes
- Compilation of the results in a summary report
Preperation of Execution
- Tender special civil engineering
- Organisation of explosive ordnance investigations
Construction Supervision
- Geotechnical support of foundation work and special civil engineering measures (raft foundation: approval of excavation pit bottom; Special civil engineering: Inspection and comparison of the drilled layers with the layers from the subsoil investigations)
- Inspection of site equipment and reinforcement cages
- Compaction controls
- Preparation of soil documentation for each individual mast site
Details:
- Performance period: 2010-2013
- Soil investigations and acceptance tests at more than 200 mast sites
- Support of special civil engineering services (Begleitung der Spezialtiefbauarbeiten (bored piles > 25 m) in various geological units
AXA Investment Managers Deutschland GmbH
Konrad-Adenauer-Ufer 21 - 23, Cologne
Demolition volume: 85.000 m³
Excavation pit volume: 27.000 m³
Nature and Scope of the Services Provided :
- Assessment of soil contamination
- Demolition field book
- Soil investigation Planning, tendering and construction supervision of the trades:
- Deconstruction
- Excavation pit
- Water drainage
- Geothermal energy
Special Features - Demolition and excavation pit in the inner city area near the Rhine
- Archeology
- Groundwater modelling
Basler Securitas, Bad Homburg
Deconstruction of the administration building and clearing of the building site
Demolition volume: approx. 60.000 m³ enclosed space
Nature and Scope of the Services Provided:
- assessment of soil contamination
- Demolition field book
- soil investigation
- Planning, tendering and construction supervision of the deconstruction
- Construction supervision of the trades:
- Excavation pit
- Water drainage
Special Features - Building project in progress
- Groundwater monitoring
Belval, ESCH-SUR-ALZETTE in Luxemburg Complete Disposal of Filter Dust Landfill
Nature and Scope of the Services Provided:
- Assessment of soil contamination
- Tendering
- Disposal-related investigations and legal waste classification
- Examination and control of the planned disposal channels and the general schedule
- Instruction of the site management in the requirements and handling of the excavation separation as well as the proof of disposal and consignment note procedure
- Control and organization of the disposal measure
- Coordination meetings and coordination between the Contractor, the Client, on-site expert support as well as all involved regulatory authorities in Germany and Luxembourg
- Auditing of accouts
Period of Execution: 2009– 2011
Disposal Volume: 240.000 tonnes
Here you can see a film about this extensive project: Beitrag bei RTL Luxemburg: PISA Reportage
Belval, ESCH-SUR-ALZETTE in Luxemburg Complete Disposal of Washing Tower Sludge Landfill
Nature and Scope of the Services Provided:
- Assessment of soil contamination
- Tendering
- Disposal-related investigations and legal waste classification
- Examination and control of the planned disposal channels and the general schedule
- Instruction of the site management in the requirements and handling of the excavation separation as well as the proof of disposal and consignment note procedure
- Control and organization of the disposal measure
- Coordination meetings and coordination between the Contractor, the Client, on-site expert support as well as all involved regulatory authorities in Germany and Luxembourg
- Invoice and supplementary audit
Period of Execution: 2011– 2014
Disposal Volume: 250.000 tonnes
ARGE StoraEnso
Deconstruction of Former Paper Mill in Düsseldorf-Reisholz
Demolition Volume: approx. : 540.000 m³ of enclosed space
Nature and Scope of the Services Provided:
- Assessment of soil contamination
- demolition field book
- Deconstruction and remediation support
- Groundwater monitoring
- Land recycling
- Earthworks supervision
Former Schultheiss-Brewery, Berlin-Spandau
Wasserstadt Berlin GbR
Nature and scope of the services provided:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Clarifying the task
- Design statics for excavation support
- Approval statics for securing excavation pits
Details:
- Soldier piles with a free wall height of approx. 5,0 m
- Underpinning made of press piles with a free wall height of approx. 3,5 m
P+B Planen und Bauen GmbH
Europaviertel Frankfurt am Main
Total area approx. 60.000 m²
Former main goods and marshalling yard
Nature and Scope of the Services Provided:
- Assessment of soil contamination
- Excavation pit investigation
- Terrain modelling
- Construction management
Ewald Hohr Wohnungsbau & Co. KG
Former EAW-Gelände in Cologne-Nippes (former railway repair plant)
Demolition volume: 24.000 m³
Excavation pit volume: 13.000 m³
Nature and Scope of the Services Provided :
Total area approx. 160.000 m²
- Assessment of soil contamination
- Demolition field book
- Subsoil investigation and excavation planning
- Construction supervision of the trades :
- Deconstruction
- Excavation pit
- Special features of soil and soil air remediation
- Remediation plan according to Federal Soil Protection and Containated Sites Ordinance
- Demolition concept
- Soil and disposal management
- Computer-aided development of excavation and refilling plans
- Development of disposal concepts as well as supervisionPeriod of Execution: 1999 - 2010
Community of Associations Asbach
Extension and Conversion of a Fire Station Equipment House, Neustadt/Wied
Nature and Scope of the Services Provided:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Clarification of the task
- Execution statics for slope protection
Details:
- Sprayed concrete nailing with a total height of approx. 10.0m
Gebr. Esch Wohnbaugesellschaft mbH
Bockenheimer Landstrasse 25, Frankfurt am Main
Demolition volume: 24.000 m³
Excavation pit volume: 13.000 m³
Nature and Scope of the Services Provided:
- Assessment of soil contamination
- Demolition field book
- Subsoil investigation
- Planning, tendering and construction supervision of the trades
- Deconstruction
- Excavation pit
- Water drainage
Special features - Demolition and excavation pit in the city centre area
Mory Verwaltungs GmbH
Commercial Building Alexanderstraße / Annagraben, Bonn
Nature and Scope of thre Services Provided:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Analysis of soil contamination
- Demolition field book
- Clarification of the task
- Design statics for excavation support
- Approval statics for securing excavation pits
- Tender excavation support
Details:
- Beam sheeting with a free wall height of approx. 4.0m
- contiguous bored pile walls using the vdW procedure (double head drilling system)
Development Company Gürzenich-Quartier
On behalf of the development company Gürzenich-Quartier, an office and commercial building with 7 floors and underground car park is erected in the centre of Cologne's old town. In order to make this project possible, planning of the deconstruction of the existing buildings and an excavation pit had to be carried out.
The total scope of services provided by Kühn Geoconsulting GmbH consisted of:
- Assessment of soil contamination
- Demolition field book
- Subsoil investigation
- Planning, tendering and construction supervision of the trades:
- Deconstruction
- Excavation pit
- Foundation measures
- FEM modelling of individual construction stages
- Measurement monitoring in neighbouring buildings and structures
- Vibration measurement according to DIN 4150 part 2 and part 3 (German Institute for Standardisation)
- High-precision settlement measurement using electronic hose scale
- Inclination measurements of facades using digital tilt meters
- Deformation measurements in the retaining walls using vertical inclinometers
- Geodetic measurement of elevation points
- Dust measurements on the historical "Gürzenich" and filter systems
In the short film shown here, the demolition of the building stock and the construction of the excavation pit are shown. The photos of 2 webcams, which are attached to adjacent buildings, were put together to a time-lapse film.
Special features that had to be taken into account in the course of planning and execution were:
- Adjustments to the planning due to archaeological finds
- Soil improvement by means of unreinforced piles
- Underground tunnel below the foundation base
- Securing existing buildings at risk of structural integrity
- Securing an ancient Roman canal in the excavation pit
Here you can see a time-lapse video of the different construction phases:
The film material was made available to us with the kind support of the Entwicklungsgesellschaft Gürzenich-Quartier.
Hippodom, Cologne
Nature and Scope of the Services Provided:
- Investigation of subsoil/ foundation consulting
- Declaration check for replenishment
- Support of demolition/excavation
Essener Hypothekenbank and HochTief AG
New Construction of a High-Rise Tower Media-Park BTD, Cologne
Nature and Scope of Services Provided:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Soil contamination survey
- Concept for groundwater protection
- Pile dimensioning
- Pile slab foundation for pre-dimensioning
- Optimization of foundation without piles via modified settlement calculations
- Underpinning structures for securing adjacent structures
Details:
- 150.0m high-rise tower with 3.0m thick floor slab
Stadtverwaltung Andernach
Deconstruction Malt House Weissheimer, Andernach
Demolition volume approx. 140.000 m³ enclosed space
Nature and Scope of Services Provided:
- Investigation of contaminated building fabric
- Tender for pollutant remediation
- Tender demolition work
New Construction of Max Ernst Museum, Brühl
Stadt Brühl
Nature and Scope of Services Provided:
- Clarification of Tasks
- Design statics for excavation support
- Approval statics for securing excavation pits
Details:
- Installation of soldier pile wall and free wall height of approx. 6,0 m
- Bpored pile wall with free wall height of approx. 5,0 m
- In-situ concrete underpinning with a free wall height of approx. 2.5m
MEAG Real Estate Management GmbH
Gustav-Heinemann-Ufer, Cologne Bayenthal
Demolition volume: 30.000 m³
Excavation pit volume: 50.000 m³
Nature and Scope of Services Provided :
- Assessment of soil contamination
- Demolition field book
- Subsoil investigation
- Planning, tendering and construction supervision of the trades:
- Deconstruction
- Excavation pit
- Water drainage
- Geothermal energy
- cooling water discharge
Special Features
- excavation pit near the Rhine in the inner city area
- goundwater modelling
AVG Köln
Construction of a 450,000 ton waste incineration plant, composting plant and ancillary buildings
Nature and Scope of Services Provided:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Survey of soil contamination
- Remediation of soil contamination
- Ground and flood protection concept
- Pile dimensioning
- Construction management
Details:
- Pile foundation with partial displacement piles
- diaphragm wall excavations 17,0m deep
- land recycling
RheinBerg Galerie, Bergisch Gladbach
LIXXUS Projektentwicklung GmbH & Co
Nature and Scope of Services Provided:
- Detection of contaminated building fabric
- Soil investigation/ foundation consulting
- Investigation on soil contamination
- Declaration check for replenishment
- Tender deconstruction
- Tender and planning of excavation pit
- Shoring planning
- Support of demolition/excavation
- Water drainage
- Health and safety coordinator
Kölnmesse
New Construction of Rheinhallen (RTL), Cologne
Demolition volume: ca. : 600.000 m³ umbauter Raum
Art und Umfang der erbrachten Leistung:
- Detection of contaminated building fabric
- Building substance assessment (listed facade)
- Remediation support and deconstruction support
- Disposal management for 200,000 m³ of excavated soil
- Clearance measurement of asbestos remediation areas
- Approval planning for dewatering
- Site Management Excavation
New Construction S-Carre, Siegburg
Rubidium Verwaltungsgesellschaft mbH & Co. Vermietungs KG
Nature and Scope of Services Provided:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Demolition field book
- Clarification of tasks
- Design statics for excavation support
- Approval statics for excavation support
- Tender for excavation support
- Planning of dewatering in the largely watertight trough
- Tender excavation pit
Details:
- Waterproof pit enclosure (Diaphragm wall according to DIN 4126 with free wall height of approx. 8,0 m)
- Soldier wall piling in the ramp area with a free wall height of approx. 5.0m
- SSheet piling as a special solution in the area of trees worthy of protection
Saint Gobain, Herzogenrath
Former Glass Plant Saint Gobain Vetrotex GmbH Deutschland in Herzogenrath
Nature and Scope of the Services Provided:
- Assessment of soil contamination
- Demolition field book
- Planning, tender and construction supervision of the trades:
- Deconstruction
- Soil Contamination
- Backfilling
- Safety and health coordinator
- Ongoing foundation consulting and earthworks supervision
- Securing newly designed embankments
- Filling concept and monitoring
Details:
- Execution period: 2010 – 2012
- Demolition volume: 500.000 m³
- Tota area: 80.000 m³
WOCON
Stadthaus Gürzenich, Cologne
Nature and Scope of the Services Provided:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Survey of soil contamination
- Demolition field book and tender
- Clarification of task
- Design statics for securing the excavation pit
- Approval statics for securing the excavation pit
- Tender for excavation support
- Construction supervision
Details:
- Installation of soldier pile wall with free wall height of approx. 8,0 m
- Apportionment of a district heating pipeline
- U.Bahn superstructure by means of pile foundation
Coal-Fired Power Station in the Port Aread of Eemshaven
Nature and Scope of the Services Provided:
- Several excavation pits within the port area of Eemshaven
- Evaluation of the subsoil conditions
- Design and approval statics for excavation pit support
- Geotechnical support
- Stability and settlement calculations for construction cranes
- Stability calculations of embankments
Special Features
- Installation of sheet piling with free wal height of approx. 10,0 m, with partly 3 times tie-back retaining wall and bracing
- Dimensioning of the foundation of the local construction cranes (flat foundation / pile foundation)
New Construction of Tacitus-Carre, Cologne
Landesentwicklungsgesellschaft LEG Bauen und Wohnen GmbH, Cologne
Nature and Scope of the a Services Provided:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Demolition field book
- Clarification of task
- Design statics for excavation pit support
- Approval statics for excavation pit support
- Tender excavation pit support
Details:
- Installation of soldier pile walls and party contiguous pile wall with free wall height of approx. 4,0 to 6,0 m
Victoria Leben Vers. AG und MEAG
Demolition of former Stadtsparkasse (City Savings Bank) and New Construction of "Westgate"
Construction project in the city centre of Cologne
Demolition volume: 100.000 m³
70.000 m³ aboveground
27.500 m³ subterraneous
Excavation pit volume: 35.000 m³
Nature and Scope of Services Provided:
- Assessment of soil contamination
- Demolition field book
- Investigation of subsoil
- Planning, tender, and construction supervision of the trades:
- Deconstruction
- Excavation pit
- Geothermal energy
Special Features - Use of old basement walls to secure the excavation pit
- Demolition and excavation pit in inner city area
- Archeology
- Groundwater modelling
Zentrale Deutsche Leasing AG, Bad Homburg
Excavation pit volume: 25.000 m³
Nature and Scope of the Services Provided :
- Assessment of soil contamination
- Demolition field book
- Subsoil investigation
- Planning, tender and construction supervision of the trades:
- Excavation pit
- Water drainage
Special Features
- Demoition and excavation pit in inner city area
- Groundwater monitoring due to a neighbouring chlorinated hydrocarbons remediation
- Dewatering in healing spring and water protection zone
Deutsche Telekom AG
New Construction of Headquaters, Bonn
Art und Umfang der erbrachten Leistung:
- Subsoil analysis / geotechnical report according to HOAI § 92/93 (german fee structure of architects and engineers)
- Clarification of task
- Design statics for excavation pit support
- Approval statics for excavation pit support
- Tender Excavation pit support
- Planning of water drainage
- Tender of water drainage
- Construction supervision
- Demolition field book and tender
Details:
- watertight excavation pit enclosure (diaphragm wall with a free wall height of approx. 25.0 m in the high-rise area)
- Installation of soldier pile wall with a free wall hieght of approx. 12,0 m
- Installation of sheet piling in the area of the media channel
- Expert opinions for several tunnel works
Here you can see a small video of the demolition of the old building on the Telekom premises in Bonn:
Geothermal Eneryg Projects in the Metropolitan Area of Cologne
Learn more about our company and our services in the fields of contaminated sites and subsoil.