Construction of new commercial premises above a former hard coal mine, Witten
Developer
E.ON Montan GmbH, Gelsenkirchen
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 PDF, 705 KByte
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Project
- Construction of a new supermarket on the premises of a former car workshop
- On the grounds is an abandoned surface shaft opening (Crone shaft: diameter ≈ 2.8 m, depth ≈ 44 m), that is neither filled in nor secured
Our services
- Subsoil assessment
- Subsoil evaluation and foundation work consultancy
- Risk assessment
- Inspection of mine plans and elevations
- Investigation of mine condition
- Safety coordination
- Expert support for the filling/compaction works on mine cavities (former Crone shaft)
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Shaft investigation and renovation, Clarenberg lunettes, Dortmund
Developer
RWE Service GmbH, Essen
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PDF, 1056 KByte
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Project
- Investigation and inspection of two former lunettes in Dortmund-Hörde
- According to official figures the shafts have a vertical depth of approx. 18 m and 20 m
Our services
- Inspection of mine plans and elevations
- Preparation of the investigation concept
- Preparation of tender documents
- Supervision of works
- Specialist support
- Evaluation of the stability of the shafts
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Stabilization of Girondelle 3 and 4 stratum, Clarenberg, Dortmund
Developer
Arnsberg District Authority
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PDF, 1005 KByte
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Project
- Danger of a cave to the surface caused by workings of a vein
- Downfall zones were discovered in several offset holes drilled under Benninghofer Straße
Our services
- Access holes in the area of Benninghofer Straße
- Construction support for access and fill holes
- Specialist support
- Supervision of works
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Construction of new health centre in Witten-Annen
Developer
PBC Bauconsult GmbH,
Castrop-Rauxel
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PDF, 196 KByte
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Project
- Partially cellared, mainly 5-storey business premises with penthouse
- Footprint approx. 70 m x 33 m
- Reinforced concrete structure with supporting brickwork
Our services
- Soil classification, geostatic calculations
- Subsoil investigation, foundation works consultancy
- Inspection of mine plans and elevations
- Mine inspection because the land is located within the Lower Rhine-Westphalia hard coal and ore mining region
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Mine stabilization of
Friedrich shaft, Witten
Developer
Alte Haase Bergwerks-Verwaltungs-Gesellschaft mbH
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PDF, 160 KByte
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Project
- Investigation of the sloping Friedrich shaft
- Depth 61 m
- The shaft was immediately adjacent to a public road
Our services
- Preparation of the investigation concept
- Supervision of works / expert support
- Evaluation of exploratory/investigative works
- Concluding report and documentation
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Residential property at
Nußbaumweg 10,
Witten-Bommern
Developer
Mr Hobeling, Witten
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PDF, 229 KByte
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Project
- New construction of 2-storey, full-basement residential property with a footprint of approx. 150 m²
- The property is situated close to the former mining site of the Witten coal mine (Geitling hard coal stratum)
Our services
- Investigation and assessment of the subsoil in accordance with DIN 4020
- Recommendations on foundations
- Geothermal report
- Assessment of drainage capacity
- Inspection of plans and elevations for mines
- Tender for investigation of mines and expert support and evaluation of the results from drillings
- Planning and tendering for in-filling of the former mine
- Support during construction
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New construction of a
residential
facility, Project
Stockumer Straße, Bochum
Developer
Kriener Wohnungsbau-gesellschaft mbH, Witten
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PDF, 105 KByte
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Project
- Constructing a residential facility with 16 semi-detached units on a former industrial site
- Total area 5,700 m²
- Measures for redevelopment of a former mining area
- Restoration of the subsoil
Our services
- Concept for demolitions works, reinstatement concept including on-site support during construction
- Investigation and assessment of the subsoil in accordance with DIN 4020
- Recommendations regarding foundations
- Investigation of inherited pollution
- Inspection of plans and elevations for mines at the Arnsberg district authorities
- Expert examination and report on in-filling of mining works
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New construction of a hotel complex, Selmastraße, Essen
Developer
KapHag Architektur und Bau GmbH, Berlin
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PDF, 139 KByte
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Project
- Hotel complex with 7 upper storeys in Essen City, covering an area of 4,000 m²
- Previous development was destroyed during WW2
Our services
- Examination of the subsoil
- Report on foundations for the new building, taking account of influences from mining
- Initial assessment of inherited pollution
- Inspection of plans and elevations for mines, risk assessment
- Support for investigative, infilling and compaction drilling to secure the empty chambers left over from mining
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New construction of a residential facility,
Dachsweg, Dortmund
Developer
Kaefer GmbH, Bremerhaven
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PDF, 112 KByte
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Project
- New construction of a 3 ½ storey semi-detached house on a sloping site
- Site over a former mining works
Our services
- Inspection of plans and elevations for mines
- Risk assessment
- Tendering for investigative measures
- Expert monitoring of investigative drillings for shafts and mining chambers
- Assessment of the current safety of the site
- Expert monitoring of infilling and compaction works to fully secure the site
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New construction of a dental-biomedical R&D centre( ZBZ) ,
Karl-Herrhausen-Str., Witten
Developer
ZBZ - Witten GmbH
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PDF, 161 KByte
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Project
- New construction of a dental-biomedical R&D centre (ZBZ)
- 5-storey building comprising 4 round towers
- Given the sloping site, the cellar level was below the site surface level on the side to the road
Our services
- Assessment of subsoil
- Advice regarding foundations
- Percolation report
- Taking account of influences from mining
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New construction of residential housing, Project Strontianitstraße, Ahlen-Vorhelm
Developer
Bendix, Ahlen
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PDF, 111 KByte
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Project
- Planned development on an area covering 12,000m² in Ahlen-Vorhelm
- Site above a former vertical face for mining of strontianite
- Shown as an area at risk from mining in the spatial use plan
Our services
- Inspection of plans and elevations for mines
- Risk assessment
- Tendering for investigative measures
- Geotechnical recording of excavator prospecting works to determine the site of the course of strontianite
- Expert monitoring of investigative drillings for a shaft and mining chambers
- Assessment of the current safety of the site
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Prometheus, Ruhr-Universität
Bochum
Developer
rubitec GmbH, Bochum
Download the project description
PDF, 143 KByte
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Project
- Sinking two drill holes to a depth of 4,000 m
- Obtaining geothermal energy on the site of FH Bochum
- Size of drilling site 7,500 m²
- At a depth of around 1,000 m there are production caverns established in former mining chambers.
Our services
- Investigation of the subsoil, assessment of subsoil and advice on foundations for the drilling site
- Inspection of plans and elevations for mines
- Inspection of the archive of air protection facilities
- Risk assessment
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