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Tunnel Design & Specialities

Subway Lot 31b & 31c - Frankfurt/Main

Owner
Frankfurt Metropolitan Mass-Transit Authority, Germany
Client
Joint Venture - Eichbergtunnel, Frankfurt / Main
Service Performed
Value Engineering: Design Consultant for a Mined Crossover Section
Commencement - Services
March 01, 1981
Completion - Services
June 01, 1983
Location
Frankfurt/Main , Hesse
Germany
Technical data

2 x 3 single track tubes with corssovers. Excavation section: 40 m² each.

Geology description

Frankfurt Clay (silt and sand), waterbearing.

Description

3 running tunnel each approximately 170 m long

Categories
Urban Rail/Bus Stations and Tunnels
Service areas
Tunnel Design & Specialities
Hole at surface
Hole at surface

Boston Central Artery, Contract No. 95287-C11A1

Commencement - Services
December 28, 1995
Completion - Services
December 11, 2003
Location
Boston, MA
United States
Technical data

Road tunnel, 4 lanes, L = 3,940 ft (1200 m). Design of a mined solution to the engineers cut & cover tunnel design using NATM with various pre-support and groundwater cut-off measures, including barrel vaulting and cut-off walls.

Geology description

Glacial till (cohesive and granular) and weathered to unweathered argillite bedrock.

Geology Type: Hard Rock

Geology types
Hard rock
Description

Barrel Vault Method

Categories
Urban Highway Tunnel
Service areas
Tunnel Design & Specialities
Special Construction techniques
Barrel Vault Method
Cross Section MBTA Red Line Station
Cross Section and Support Measures
Proposed Cross Section near MBTA Bus Tunnel

Subway Lot 40 - Frankfurt/Main

Owner
Frankfurt Metropolitan Mass-Transit Authority, Germany
Client
Frankfurt Metropolitan Mass-Transit Authority, Germany
Service Performed
Technical Consultant for Design, Supervision of Construction and Arbitrator
Commencement - Services
December 01, 1980
Completion - Services
June 01, 1984
Location
Frankfurt/Main , Hesse
Germany
Technical data

Subway, 2 parallel tubes (station and rumming tunnel), L = 2 x 900 m, full section: 35 m² (76 m²), Construction method: NATM.

Geology description

Weathered rock, Frankfurt Clay (clay and sand).

Description

L= 2*900m

Categories
Urban Rail/Bus Stations and Tunnels
Service areas
Site Supervision & CM, QA/QC, Tunnel Design & Specialities

New Studley Water Tunnel

Owner
Severn Trent Water Authority
Client
Fairclough Civil Engineering Limited, GB
Service Performed
NATM design, construction supervision and instrumentation
Commencement - Services
January 29, 1988
Completion - Services
December 29, 1990
Location
Birmingham
United Kingdom
Technical data

Large diameter shaft constructed using NATM for the diversion of a Water Supply Tunnel.

Geology description

Sandstone, Shale / Marl, Limestone

Geology Type: Hard Rock

Geology types
Hard rock
Categories
Shaft
Final cost
$25,000,000
Service areas
Site Supervision & CM, QA/QC, Tunnel Design & Specialities
Shotcreting
Overview drawing
Overhead View of Shaft and Water Tunnel
British Construction Award 1989

Kaverne Landsberg

Owner
City of Landsberg am Lech
Client
Held & Francke
Commencement - Services
December 01, 1987
Completion - Services
January 01, 1991
Location
Landsberg am Lech, Bavaria
Germany
Technical data

Underground parking cavern: constructed in soft ground using NATM excavaton, 180 m long with a 240 m² approx. Cross section (18.9 m wide by 16.4 m high).

Geology description

Water bearing gravels, dry tertiary clay, arl, silt and sand

Description

Shallow underground parking cavern for some 350 cars: constructed in soft ground using NATM excavation 180 m long with a 240m² approx. Cross section (18.9 m wide by 16.4 m high)

Categories
Miscellaneous Projects
Service areas
Tunnel Design & Specialities
Graphics, Parking Cavern Layout
Excavation of center part

Subway Lot 31 - Frankfurt/Main

Owner
Frankfurt Metropolitan Mass-Transit Authority, Germany
Client
Boswau & Knauer, Germany
Service Performed
Value Engineering / Alternative Design
Commencement - Services
July 01, 1980
Completion - Services
June 01, 1984
Location
Frankfurt/Main , Hesse
Germany
Technical data

Three single track tunnels, L = 350 m each.

Geology description

Frankfurt Clay (silt and sand), waterbearing.

Description

Immediate backfill with excavated material at the face. Shotcrete stabilisation at the sink hole (15 cm). Filling of sinkhole with excavated material. Drift trough sink hole with rebar spiling as additional support.

Categories
Urban Rail/Bus Stations and Tunnels
Service areas
Tunnel Design & Specialities

Bus Tunnel

Owner
Transportation Department, Regional Municipality of Ottawa-Carleton (RMOC)
Client
DELCAN Corporation, Ottawa
Service Performed
NATM Consultant
Estimated cost
$250,000
Commencement - Services
January 01, 1991
Location
Ottawa, ON
Canada
Technical data

2 single lane bus tunnels connecting four underground bus stations, 4200 m length approx. each.

Geology description

Sand, sensitive silty Clay, Shale and Limestone.

Categories
Urban Highway Tunnel
Service areas
Tunnel Design & Specialities

Greenbelt Route Section E8a

Owner
Washington Metropolitan Area Transit Authority
Client
RK & K - Rummel, Klepper & Kahl, Baltimore, MD
Service Performed
Alternative NATM Design and Instrumentation
Estimated cost
$50,000,000
Commencement - Services
April 30, 1985
Completion - Services
May 31, 1993
Location
Washington, DC
United States
Technical data

Two single track running tunnels, L= 6,170 ft (1880m) each, (E Line) 3 Shafts and Cross Adits

Geology description

Clay, sandy clay and sand, parts with some gravel and occasional boulders, decomposed bedrock and weathered bedrock.

Categories
Urban Rail/Bus Stations and Tunnels
Service areas
Tunnel Design & Specialities, Waterproofing & Water Control

Jubilee Line Extension: Contract 102 - Waterloo and Westminster Station

Owner
London Underground (LU)
Client
Taylor Woodrow
Service Performed
Value engineering: NATM alternative design at tender stage
Commencement - Services
October 29, 1993
Completion - Services
May 29, 1996
Location
London
United Kingdom
Technical data

New Underground Station: NATM works comprising platform tunnels, central concourse, cross passages, ventilation tunnels etc.

Geology description

Made Ground, Alluvium / Terrace Gravels, London Clay.

Geology types
Soft ground
Categories
Urban Rail/Bus Stations and Tunnels
Final cost
$150,000,000
Service areas
Site Supervision & CM, QA/QC, Tunnel Design & Specialities
Lattice Girder, Botom - Detail
Excavation - Crown with Excavator
Excavation with Excavator
Excavation Top Heading Finished
Exavation of Heading (left part) finished
Finsihed Initial Lining
Face support (Bench)
Excavation Bench
Excavation Bench-Invert& Crown
Excavation
Excavation Full Face
General Layout of the NATM Works
Optimized Cross Section with typical Waterproofing and Drainage Details
Overview and Cross Section
Invert Excavation
Shotcrete Application
Sidewall Drift
Reinforcement of the Final Lining
View of Tunnel Junction before Final Lining
Finished Tunnel

Wheaton Station and Tunnels

Owner
Washington Metropolitan Area Transit Authority
Client
Ilbau America
Service Performed
Design of value engineering; cost proposal for contractor.
Commencement - Services
August 01, 1983
Completion - Services
June 01, 1987
Location
600 5th Street
Washington, DC 20001
United States
Technical data

Subway, 2 tubes, 1 double crossover, 5 shafts and cross adits, 1 station and 1 escalator, Length: 2 x 8530 ft., Construction method: NATM

Geology description

Quartz, diorite, micaschist, gneiss.

Geology types
Hard rock
Description

The project was part of the extension of Glenmont Route north into Maryland and included Wheaton Station and two approx. 2500 m long running tunnels as well as ventilation shafts and a cross-adit. Ilbau America, advised by Dr. Sauer & Partners, recommended changes to the existing conventional design and introduced the New Austrian Tunnelling Method (NATM), which was then used to construct the station tunnels, running tunnels and ancillary structures. The shaft at Hildarose Drive was constructed in conjunction with a large double cross-over.

Categories
Urban Rail/Bus Stations and Tunnels
Final cost
$48,000
Service areas
Tunnel Design & Specialities
Construction methods
NATM
Tunnel length
Max:180
Completed station platform
Installing waterproofing
Escalator shaft
Waterproofing installed
Finished Lining
Project number
083D
Final cost
$48,000 USD

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