james thomson c. eng jacked structures sa jacked structures sa a new approach to constructing...
TRANSCRIPT
JAMES THOMSON C. ENGJACKED STRUCTURES SA
WWW.JACKEDSTRUCTURES.COM
JACKED STRUCTURES SA
A New Approach to Constructing Underground
Stations
Jacked Installations for Large Structures
JACKED STRUCTURES SA
Some Early Projects
Modular installation of foundations, abutments and
piersBox Jacking
Modular Concept
JACKED STRUCTURES SA
Wandsworth- 1969
JACKED STRUCTURES SA
The Box Jacking Concept
JACKED STRUCTURES SA
Brent Cross -1974
JACKED STRUCTURES SA
THE JACKED ARCH THE JACKED DECK
JACKED STRUCTURES SA
New Concepts
The Jacked Arch Concept
JACKED STRUCTURES SA
The Jacked Deck Concept
JACKED STRUCTURES SA
A 20M WIDE 126M LONG ROAD UNDERPASS BELOW RAIL TRACKS
CLIENT: EAST KENT CCCONTRACTOR: VOLKER FITZPATRICK
HOCHTIEF JV
JACKED STRUCTURES SA
Cliffsend Underpass
Cliffsend Underpass
JACKED STRUCTURES SA
Tender Scheme
aa
Volker Fitzpatrick Hochtief JV
Cliffsend Underpass
JACKED STRUCTURES SA
Final Scheme
Volker Fitzpatrick Hochtief JV
Cliffsend Road Underpass –Aerial View
JACKED STRUCTURES SA
Cliffsend Road Underpass Jacked Deck Face Excvation
JACKED STRUCTURES SA
Cliffsend Road UnderpassDeck Jacking Installation
JACKED STRUCTURES SA
INSTALLATION BY JACKED ARCH AND
JACKED DECK METHODS
JACKED STRUCTURES SA
Underground Metro Stations
JACKED STRUCTURES SA
Metro Stations-Arch Configurations
Top Box with Piles Modular foundations and Walls
Metro StationsArch Configurations
JACKED STRUCTURES SA
Foundation Box Foundation Tunnel
Four Platform Arrangement
JACKED STRUCTURES SA
Alternative Four Platform Arrangement
JACKED STRUCTURES SA
Jacked Deck Concepts
JACKED STRUCTURES SA
An underground station – piled abutments from a high level box and a
jacked arch
JACKED STRUCTURES SA
TYPICALLY: 22M -24 M SPAN
AROUND 200M LONG DEPTH VARYING FROM 6M-10M
JACKED STRUCTURES SA
Application of Jacked Deck to Launch Boxes
• By breaking down the process into elements reduces the exposed soil face • Minimises jacking forces and reaction arrangements.• Continuous support of the excavation with a full structural lining • Surface settlement is minimal • Use of precast units allows higher quality construction
JACKED STRUCTURES SA
Advantages of the Jacked Arch
and Deck Approach
• A wide range of geometry and configurations • Installation to very close line and level tolerances• Methods are applicable to both shallow and deep structures• Provides greater clear spans over much longer drive lengths.• Small launch platform area
JACKED STRUCTURES SA
Advantages of the Jacked Arch
and Deck Approach
JACKED STRUCTURES SA
JACKED STRUCTURES SA
JACKED STRUCTURES SA
JACKED STRUCTURES SA