Deep and inclined Shafts
Shafts are key channels between ground level and sub-surface works and operations. Moreover, shafts are imperative links within the duplex transport logistic chain and are vital for operational safety. The construction of shafts is very often challenging. Intelligent site logistics, professional material management, water ingress management during shaft sinking, guaranteed water impermeability during operation and uncompromising safety are key factors for success.
As a result, smart shaft conception and design in volves more complex factors than many standard en gineering approaches, to successfully meet these var ied requirements during construction and subsequent operations. Amberg Engineering’s multidisciplinary team offers distinctive expert knowledge paired with proven prac tical experience: from shallow metro shafts in soft soil to entire logistical concepts and deep shafts pushing the boundaries of what is feasible, in al-pine crossing tunnels.
Services
Shallow shafts for metro and urban projects
- Entrance and reception shafts for TBM drives incl. soft eye technique or as part of deep excavations for stations added subsequently
- Circular and rectangular shafts
- Retaining wall systems such as pile walls and diaphragm walls in soft soil / groundwater conditions
- Special function shafts such as peanut-shaped shafts or rescue shafts
Deep shafts in rock and soft ground
- Deep shafts >1000 m as intermediate points of access for long tunnels
- Deep vertical shafts of 400 m with dia. of up to 12 m
- Deep shafts of 120 m in depth and up to 30 m excavation size in soft soil
Raise boring and reaming shafts
- Raise Bore shafts with upper and lower access, up to 800 m deep
- Reaming bore (after raise drilling) by drill & blast or through mechanised excavation techniques
Geotechnical, structural and waterproofing design
- Design of underground shaft head caverns and hoisting chambers
- Geotechnical and structural design - from soft soil to hard rock, in all project phases
- Special solutions for the boundary between soft soil and heavily weathered and competent rock
- Special solutions for pre-grouting, water proofing; design of waterproof structures
Logistical concepts and capacity dimensioning
- Overall site logistic concepts
- Capacity dimensioning with several supply chains
- Shaft hoisting concepts
Ventilation, risk, safety and rescue
- Ventilation design for construction & operation
- Thermo & aerodynamic simulation of fire and smoke dispersal
- Hazard scenario & Quantitative Risk Analysis (QRA) for construction and operational phases
- Safety, escape and rescue concepts
Consultation services and support during shaft sinking
- Consultation services regarding water ingress prevention, pre-grouting and waterproofing
- Optimisation of ventilation and energy consumption
- Maintenance, safety and risk management during construction and operation of shaft sinking and shaft hoisting equipment
Specification of hoisting equipment
- Specification of shaft hoisting equipment
- Specification of state of the art vertical and
- horizontal logistics equipment
Tender and contract management
- Specification and evaluation of tender documents
- Contract management and owner consultation services for shaft construction and shaft logistics
- Expert knowledge in international standards applied in shaft sinking and hoisting
Competence
- Comprehensive knowledge and experience in all fields of shaft design, shaft logistics and safety during construction and operation
- Solid track record of assignments for owners, contractors and regulatory authorities
- Expertise in international standards for shaft sinking and hoisting operations
Benefits
- Employ proven expert knowledge to reduce your project risks and avoid exceeding construction cost budget
- Benefit from value engineering and project optimisation based on solid track record during both design and construction phase
- Ensure maximum transport capacity, reduce your longterm operations and maintenance costs
Selected references
Project
Shafts Sedrun I and II, Gotthard Base Tunnel, Switzerland
Services
Logistics concept, shaft diameter definition, design for all project stages, site supervision for shaft 1 and raise boring shaft II
Client
AlpTransit Gotthard AG
Project
Shafts SBT 2.1 and 1.1, Semmering Base Tunnel, Austria
Services
Dimensioning of shaft logistics and overall logistics, shaft diameter definition, design of concept for all project stages
Client
ÖBB
Project
Singapore MND Underground Utility Plants, Singapore
Services
Study of technical and operational feasibility, geotechnical design, construction methods, shaft logistics, cost estimation and comparison with over-ground solutions
Client
Ministry of National Development
Project
Ratle Hydro Electric Project JK, India
Services
Detailed design for civil works for all under ground structures (excavation and support de tails) incl. underground power station, pressure and surge shafts and tunnels
Client
Larsen and Toubro, Faridabad
Project
Pumped storage Hydro Grimsel 3, Switzerland
Services
Project design and tender documents for machine hall caverns, pressure shaft
Client
Kraftwerke Oberhasli
Project
North-South Transmission Cable Tunnel Con tract NS1, Singapore
Services
Design check for shafts, mined tunnels, bored tunnels and ancillary structures
Client
Singapore Power Assets Ltd (SPPA)
For around 60 years, the renowned Swiss Amberg Group has been a leader in engineering and surveying services for railway, metro, underground and specialised civil engineering.
The family-owned company is an innovative knowledge, engineering and technology provider in the field of logistics and infrastructure for smart cities, hubs and networks. We provide outstanding solutions for our customers through innovatively combining above-ground and underground space utilisation.
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