DR. SPANG INGENIEURGESELLSCHAFT FÜR BAUWESEN, GEOLOGIE UND UMWELTTECHNIK MBH

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DR. SPANG INGENIEURGESELLSCHAFT
FÜR BAUWESEN, GEOLOGIE
UND UMWELTTECHNIK MBH

Side slopes

Selected reference projects

Dr. Spang GmbH

Remedial measure at Sengenthal following creepage of the embankment slope


Developer

DB Netz AG, Nuremberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 827 KByte

Project

  • The two-track DB section 5850 towards Nuremberg runs between embankments southeast of the village of Sengenthal
  • The embankment rises to approx. 5 m above the surface of the track and the slopes have an angle of inclination of between 28° and 34°
  • Misalignments in direction and height on the left of the track and a deterioration in the track condition were found at between km 58.385 and km 58.415
  • Valley-side deformation of the rail tracks and displacement of the cable duct over a length of approx. 30 m
  • Partial demolition and reconstruction of the existing embankment

Our services

  • Geotechnical inspection of the remedial measure in order to ascertain the cause of the damage and assess the risks
  • Inspection and recording of the slopes
  • Rehabilitation planning in terms of ready-to-build execution planning
  • Local site management for rehabilitation measure
   

Loose slope at Ludwigstadt railway station


Developer

DB Netz AG, Regional Repairs, Nuremberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 861 KByte

Project

  • In the area of Ludwigstadt railway station, DB track section 5010 runs in a sloping cutting above the village
  • The levelled DB land adjacent to the track occupies a surface area of approx. 200 x 30 m and falls away steeply to the neighbouring Siedlungsstraße residential area to the north The area between comprises an unconsolidated slope angled at approx. 40° which drops approx. 10 - 12 metres over a length of 16 - 20 m
  • Slope deformation (creepage) and seepage water at the foot of the slope are causing problems
  • There are localised risks to stability that require technical remediation / stabilization

Our services

  • Expert report with stability calculations and study of remediation options
  • Preliminary planning with study of the slope stabilization options
  • Technical support for the client in finding a solution
   

Slope stabilization A3 motorway, earthworks and surfacing lot 229, 6-lane widening at Weibersbrunn


Developer

North Bavaria Highway Authority

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 839 KByte

Project

  • Six-lane widening of the A3 motorway between the Bessenbach / Waldaschaff and Weibersbrunn (Kaupenaufstieg) exits
  • Massive earth and rock works in the expansion section
  • Slope stabilization covering an area of approx. 40.000 m², Geobrugg "Tecco" system

Our services

  • Technical processing in accordance with HOAI § 55 and § 64, performance phase 5 inc. verifiable statics for the rock stabilization and execution drawings
  • Geotechnical support
   

Landslide in Escherndorf area of town of Volkach


Developer

Volkach administration community

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 702 KByte

Project

  • Several large landslip areas, some of them active since the 1960s, resulting in vertical slippage of up to approx. 9 m and correspondingly large movements of earth, exist over a total surface area of approx. 25 ha within the "Escherndorfer Fürstenberg" vineyard
  • Remediation measures to stabilize the slope have been carried out on several occasions in the past
  • An area totalling approx. 10 ha in size still shows landslip activity
  • Considerable damage was caused to the wine-growing areas and the associated infrastructural facilities

Our services

  • Inspection of existing documentation, historical research
  • Interviews with eyewitnesses
  • Geological surveys / mapping
  • Presentation of the results in a geotechnical report inc. remediation recommendations
   

Embankment damage at section 5100 Bamberg - Hof


Developer

Deutsche Bahn AG, Nuremberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 992 KByte

Project

  • Damage to embankment in the vicinity of a badger sett on the left side at DB track section 5100 Bamberg-Hof, km 84.2 near the village of Marktschorgast
  • Inspection of the embankment structure
  • Instability caused by several badger setts

Our services

  • Subsoil investigation
  • Subsoil report
  • Remediation concept
  • Geotechnical site supervision
   

Slope stabilization at Werdorf on the DB Aachen - Gießen line


Developer

DB Netz AG, Frankfurt

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 326 KByte

Project

  • Risks of stone, rock and boulder falls on DB track section 2651 near the Werdorf stops and at Dillenberg station
  • Stabilization of the relevant slopes through overnetting and rock nails

Our services

  • Geotechnical rock surveys
  • Preparation of expert report
  • Environmental screening
  • Landscape management support plan
  • Special species protection assessment
   

Slope stabilization on the A8 motorway


Developer

Tübingen Regional Administrative Authority, section 42

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 311 KByte

Project

  • Six-lane expansion between Hohenstadt and Ulm
  • Steep slope at construction km 30+050 to 30+200 and 27+100 to 27+300
  • The widening of the A8 motorway entails encroachment on the existing slope
  • The foot of the slope is relocated up to approx. 10 m further back
  • The height of the cutting is up to approx. 10 m
  • A steep slope with an incline of approx. 60° is intended

Our services

  • Project and structural engineering planning up to execution planning
  • Planning of the slope stabilization for the steep slope between km 30.050 and 30.200
   

Construction of new cycle path alongside the L 370


Developer

District of Starzach

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 297 KByte

Project

  • The cycle path link is being built between the Börstingen and Sulzau parts of Starzach alongside the L 370
  • The proximity of the Neckar river necessitates a supporting structure
  • Stabilization of the existing embankment through a slope support

Our services

  • Subsoil investigation
  • Soil mechanical laboratory tests
  • Chemical analysis of the groundwater
  • Subsoil report
  • Stabilization recommendations
  • Examination of options
   

Replacement of supporting structures, Crailsheim, section 4951


Developer

Deutsche Bahn AG through Franz Kassecker GmbH, Waldsassen

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 553 KByte

Project

  • The existing supporting wall is badly damaged and needs to be replaced
  • The supporting wall must be replaced by shotcrete stabilization with prestressed piles and in-situ concrete wall
  • In some places permanent slope stabilization with steel mesh and ground anchors must also be established above the supporting structure

Our services

  • Execution planning
  • Technical processing
  • Stabilization records
  • Execution drawings according to HOAI 2009 § 42, service phase 5, and § 49, service phases 4 and 5
   

Stabilization of a cycle path on the Lenne embankment


Developer

Town of Plettenberg, Civil and Structural Engineering department

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 287 KByte

Project

  • The asphalted "Auf der Papenkuhle" cycle path runs along a wooded slope
  • A municipal drainage channel of DN 400 is also located at approx. 2 m below the cycle path
  • The cut bank is steep, with an estimated total incline of 40º, but in some cases as much as 50º
  • The black top of the cycle path is cracking at approx. 30 m parallel to the slope

Our services

  • Examination of 3 options with outline presentation and cost estimate (part service under HOAI § 42, service phase 2)
  • Subsoil analysis and subsoil evaluation
  • Stability investigations, rough static calculation (part service under HOAI § 49, service phase 2)
  • Planning services pursuant to HOAI § 42, service phases 2, 3 and 5 - 7
  • Planning services pursuant to HOAI § 49, service phases 2, 5 and 6
   

Hammerberg flushing dump


Developer

SAXONIA Standortentwicklungs- und -verwaltungs GmbH, Freiberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 629 KByte

Project

  • Dumping of up to 20 m of flushing material from mineral processing at the Freiberg mine ended in 1968
  • The old deposits are covered over to prevent the discharge of pollutants
  • Determination of possible hazards for the profiling and stability of the coarse side packs

Our services

  • In-depth investigation of the history of the flushing dump
  • Examination programme for exploration, performance and analysis
  • Iterative stability investigation
  • Settlement calculations
  • Recommendations for the planning of the covering with specifications for construction over approx. 10 years
  • Planning of the renovation of the cover body
  • Incorporation of a covering of mineral soils
  • Planning of a surface drainage system
  • Planning of a new road link for access to the flushing dump
  • Preparation of the landscape management support plan
   

Slope slippage at the
cutting for the northern
portal of Winkhauser tunnel, Brügge


Developer

DB Netz AG, Münster

Dr. Spang GmbH


Download the project description
Dr. Spang GmbH PDF, 879 KByte

Project

  • Remedial measure after a landslide
  • Special inspection of the terrestrial body at km 21.760 on the one-track, non-electrified track Hagen - Oberhagen - Dieringhausen, DB track section no. 2810
  • Bedrock slope approx. 12 m high
  • The cutting at the northern portal of the Winkhauser tunnel has an incline of approx. 70 to 80%.

Our services

  • Geotechnical inspection
  • Project and structural engineering planning (service phases 1-7) for the stabilization
  • Specialist support
  • Environmental screening
  • Preparation of nature conservation documents for the purposes of approval planning
  • Landscape management support plan
  • Species protection examination
   

Expansion of spoil dump in "Schledde" quarry, Hemer


Developer

Stricker-Weiken GmbH & Co. KG, Warstein

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 834 KByte

Project

  • Stabilization of the spoil dump in the "Schledde" quarry in Hemer
  • Dump expanded by approx. 2 ha to a total surface area of 4 ha
  • Measures to establish a stable dump

Our services

  • Subsoil analyses
  • Stability investigations pursuant to DIN 4084
  • Planning and development of measures to improve the stability of the dump
  • Concept design and surveying of a settling and retention basin as a receiving and settling basin for eroded soil material
  • Laboratory tests to determine the installation criteria
  • Measures to prevent soil subsidence close to the surface and slaty erosion
   

Rock stabilization on DB track Aachen - Kassel, Olsberg


Developer

DB Netz AG, Münster

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 126 KByte

Project

  • Track endangered by rockfall from the slope, which is up to approx. 20 m high
  • Rock stabilization on the track section (2550) Aachen - Kassel, km 236.9 - 237.3
  • The rock slope affected is located approx. 2.7 km east of Olsberg
  • The rock slope has other endangered areas

Our services

  • Geotechnical analysis of the slope
  • Site survey
  • Geological engineering report
  • Planning of the remedial measure and permanent stabilization of the track section (performance phases 1-7)
   

Rote Halde landfill, Iserlohn-Letmathe


Developer

Lobbe Abfall GmbH, Iserlohn

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 883 KByte

Project

  • Sealing of a soil and buildings materials landfill site of DKI
  • Establishment of the surface seal comprising bentonite mat, drainage layer and recultivated soil
  • 54,000 m² largely with incline of 1:3, in some areas with incline 1:2; in these areas tensile forces must be absorbed and diverted by geogrids

Our services

  • Planning, quality assurance and project coordination
  • Expert technical consultancy
  • Supervision of works
  • Preparation of the tender documents, QA plan and geotechnical evidence
  • Self-supervision
  • Geotechnical laboratory tests
  • Concept design and planning of construction water drainage system
   

Rockfall hazard within Essen metropolitan area, rock slope at Ruhrtalstraße 200, Essen


Developer

City of Essen, environmental agency

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 1125 KByte

Project

  • Stabilization measures to eliminate rockfall hazards on 2 residential properties
  • Rock slope in Essen metropolitan area behind building at Ruhrtalstraße 200
  • Slope height approx. 20 m - 25 m
  • 2 rockfall and landslide events
  • Unfavourable stratification and fissures
  • Global stability risk
  • Stabilization with wire rope overnetting and back-anchored anchor beams

Our services

  • Geotechnical inspection of the rock slopes
  • Recording of the condition of the rock outcrops
  • Project and structural engineering planning services for stabilizing the rock slopes
  • Local supervision of works for stabilization against rockfall hazards
   

Rock stabilization of quarry wall in ENCI lime works


Developer

ENCI, Maastricht, Netherlands

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 570 KByte

Project

  • Continuous rock and slope stabilization of the quarry wall
  • Slope height approx. 50 m, slope sometimes overhanging
  • Area approx. 1,800 m2
  • Drape system braced using rock nails with Flexkopf

Our services

  • Execution planning for the overnetting with a rockfall protection curtain
  • Preparation of the stability tests
  • Construction support
   

Slope stabilization Luitpoldhütte landfill site in Amberg


Developer

Luitpoldhütte AG, Amberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 150 KByte

Project

  • The landfill site has on its eastern side a steep slope of about 15 m in height covering a distance of approx. 220 m until immediately adjacent to a side road
  • Collapse of the slope on the eastern flank
  • Approx. 40 x 60 m of the slope surface set in motion and spilled onto the adjacent road

Our services

  • Geotechnical field and laboratory tests and examinations
  • Stability investigations pursuant to DIN 4084
  • Planning of the renovation of the slipping mass having due consideration for landfill regulations
  • Geotechnical report with recommendations for action
   

Slope slippage Kotthausen


Developer

DB Netz AG, Münster

Dr. Spang GmbH


Download the project description
Dr. Spang GmbH PDF, 155 KByte

Project

  • Landslip at km 51.450 on DB track section 2810, Gummersbach- Marienheide
  • Collapse of the cut slope on the right of the track
  • As a result of the landslip soil spilled onto the one-track line over a distance of about 30 m and caused a suspension of rail services
  • Slipping mass in the loose/solid rock transition with the inclusion of water

Our services

  • Geotechnical inspection
  • Investigation concept for field work
  • Subsoil evaluation
  • Study of options
  • Planning of structural and supporting frameworks for remedial action
  • Investigation concept for field work
  • Environmental screening
  • Landscape management support plan
  • Species protection examination
   

Slope instability at Igelsdorf


Developer

DB Netz AG, Regionale Instandetzung Nürnberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 140 KByte

Project

  • DB track section 5320 Treuchtlingen-Nuremberg
  • Side slope at km 44.800 at Igelsdorf
  • Significant cracking of the shell extending over approx.18 x 10 m L x H in the lower half of the slope
  • Remedial action due to active slippage

Our services

  • Geotechnical investigative services
  • Regular monitoring of the slippage
  • Supervision of initial slope stabilization of the slipping mass
  • Construction support and monitoring of the first renovation measures
  • Geotechnical site survey, mapping
  • Surveying of test pits
  • Laboratory tests
  • Assessment of the stability of the slope
  • Risk assessment
  • Elaboration of stabilization and renovation proposals including cost estimate
   

Göggelsbuch tunnel


Developer

DB Netz AG, Nuremberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 243 KByte

Project

  • High-speed rail line 5934, new Nuremberg-Ingolstadt section
  • Northern mouth I cutting
  • Slope instability at the northern end of the Göggelsbuch tunnel

Our services

  • Geotechnical site survey
  • Trial pits
  • Laboratory tests
  • Assessment of the stability of slopes and inclines
  • Risk assessment
  • Elaboration of stabilization and renovation proposals
   

Renovation of waste heap
complex 371 into meadow


Developer

Saxony Regional Office for Environment and Geology

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 638 KByte

Project

  • Final configuration of the waste heap, including the relevant road, path, waterway and landscape engineering
  • Volume totalling 13.7m m³ and a contact area of approx. 67 ha

Our services

  • External monitoring of the quality of the work to renovate and return the waste heap to use
  • Monitoring of execution of the works for conformity with radiation protection limits and compliance with rules of the art for road, waterway and landscape engineering
  • Checks of the redistribution and profiling work, determination of the degrees of compaction, achieved degrees of compaction including permeability coefficients and aggregate gradation, evidence of suitability of the top layers, application of the top layers on the slopes and parts of the plateau and expansion of seepage water catchments
   

RheinPark Duisburg


Developer

EG DU, Entwicklungsgesellschaft Duisburg mbH

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 809 KByte

Project

  • Conversion of an industrial site as a park facility
  • Area approx. 70 ha
  • Demolition of buildings, removal of rail facilities
  • Remodelling of the site by constructing new bank consolidations (sheet piling) and supporting walls (rectangular bracket walls, partly with deep foundations)
  • Laying out paths and the formal public spaces

Our services

  • Examination for unexploded ordnance
  • Investigation of subsoil, with core drilling and soundings
  • Soil mechanics lab tests
  • Assessment of subsoil and advice on foundations pursuant to HOAI § 92, Lph 1 to 3
  • Planning of supporting frameworks pursuant to HOAI § 64, Lph. 1 to 6, for bank constructions and supporting walls
   

Renewal of Nittel Tunnel,
landslip protection


Developer

DB ProjektBau GmbH, Frankfurt

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 554 KByte

Project

  • Scope: 250,000 m³ soil / rock
  • Significant movements due to carry-off of soil masses in early 1960s (foot layer of side slope reduced by 3,400 t)
  • Raising of the water level of the Moselle by 4.5 m (increase)
  • Settlement during B 419 widening, following poss. explosions at the Wellen lime extraction works

Our services

  • Investigations into the safe status of the Nittel landslip
  • Devising a calculation model for recalculating the historic slip
  • Devising a calculation model for a relevant cross-section in the pan area
  • Agreeing the model and the calculation parameters with the Rhineland-Palatinate Land office for geology and mining
  • Recalculation of the historic slip
  • Calculating possible areas of slippage in the selected cross-section of the Nittel pan
  • 3 core drillings with installation of inclinometers
   

Redevelopment of the slag heap
in Muldenhütten


Developer

SAXONIA Standortentwicklungs- und - Verwaltungs GmbH, Freiberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 653 KByte

Project

  • Securing an old industrial storage site with slope heights of up to 30 m
  • Angle of incline up to 38°
  • Foot of slope in the area of water exchange for the Mulde, over a length of approx. 350 m, total area approx. 1.6 ha
  • Securing the foot of the slope

Our services

  • Devising a full set of plans for the selected option for securing the heap
  • Planning the construction engineering, working in a contaminated area
  • Devising a schedule of construction periods and costs
  • Negotiations with the authorities over the fundamental suitability for approval of works; devising documents for the necessary permissions for submitting to the authorities
  • Execution planning; preparing award of contract and assisting with award of contract, construction site management, documentation of redevelopment, proofs of safe status for the side slopes of the heap and the covering
   

Rectifying floodwater damage, Freiberger Mulde, Muldenbogen


Developer

Landestalsperrenverwaltung Sachsen

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 646 KByte

Project

  • Rectifying floodwater damage over a part section of the Freiberger Mulde, approx. 500 m long
  • Repairs required to approx. 200 m of supporting wall, steep-sided slopes and river bed side beaching
  • Securing an area of damage on one bank wall (natural stone dry masonry)
  • Securing the foot of the side slope over a run of approx. 30 m

Our services

  • Planning pursuant to HOAI, § 55, Lph 1 to 9, investigation of subsoil and assessments of masonry work
  • Determining the conditions of the subsoil and foundations in the area at risk, geotechnical recording of the exposed rock slopes in the area under investigation; suggestion for repair, proof of safe status for the bank walls and the adjoining slope, execution planning and monitoring of construction
   

Redevelopment of the
Hohe Esse slag heap in Halsbrücke


Developer

SAXONIA Standortentwicklungs- und - Verwaltungs GmbH, Freiberg

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 513 KByte

Project

  • Securing an old industrial storage site with slope heights of up to 50 m
  • Angle of incline approx. 33° to 39°
  • Foot of slope close to transport areas used by the public, over a length of approx. 150 m, total area approx. 1.5 ha
  • Securing the foot of the slope and the area of the slope

Our services

  • Devising a full set of plans for the selected option for redevelopment, comprising a section with biological engineering solutions and a section with technical solutions
  • Plan for safe working
  • Planning of works in a contaminated area (BGR 128)
  • Coordination of health and safety Planning all services pursuant to HOAI § 55, Lph 1-9
    Planung aller Leistungen gemäß HOAI § 55,
    Lph 1-9
  • Negotiations with the authorities over the fundamental suitability for approval of works
  • Proof of safe status for the side slopes of the heap and the covering
  • Investigations of the subsoil
   

Extension to the L 346 local road,
Bad Teinach - Zavelstein


Developer

Bad Teinach-Zavelstein Town Authorities

Dr. Spang GmbH


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Dr. Spang GmbH PDF, 841 KByte

Project

  • Renewal of the steep local road positioned on the side of the valley
  • Valley-side installation of a pedestrian walkway as a reinforced concrete bridge construction
  • Bridge length 340 m, total length of road extension 415 m
  • Foundations using large cast-in-situ concrete piles

Our services

  • Investigation of subsoil, report on foundations
  • Formal recording of evidence
  • Planning designs pursuant to HOAI § 55, Lph 1-4 and 6 for bridges, road construction and drainage
  • Planning of supporting frameworks, HOAI § 64, Lph for the bridge
  • Tender for the overall measure
  • Local site supervision
  • Coordinating health and safety

nach oben TOP

 
Dr. Spang GmbH

Company head office Witten

Phone: 02302 - 9 14 02 -0
Fax:  02302 - 9 14 02 -20
E-Mail zentrale@dr-spang.de

Esslingen/Neckar

Phone: 0711 - 351 30 49 -0
Fax:  0711 - 351 30 49 -19
E-Mail esslingen@dr-spang.de

Frankfurt am Main

Phone: 069 – 678 6508 – 0
Fax: 069 – 678 6508 – 20
E-Mail frankfurt@dr-spang.de

Freiberg/Saxony

Phone: 03731 - 79 87 89 -0
Fax:  03731 - 79 87 89 -20
E-Mail freiberg@dr-spang.de

Nuremberg

Phone: 0911 - 9 64 56 65-0
Fax:  0911 - 9 64 56 65-5
E-Mail nuernberg@dr-spang.de

Naumburg/Saale

Phone: 03445 - 762 - 25
Fax:  03445 - 762 - 20
E-Mail naumburg@dr-spang.de

Hamburg

Phone: 040 – 524 73 35-0
Fax:  040 – 524 73 35-20
E-Mail hamburg@dr-spang.de

Berlin

Phone: 0331 - 231843 - 0
Fax:  0331 - 231843 - 20
E-Mail berlin@dr-spang.de

Munich

Phone: 089-2 77 80 82-60
Fax:  089-2 77 80 82-90
E-Mail muenchen@dr-spang.de

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Project descriptions