JAMES THOMSON C. ENG JACKED STRUCTURES SA 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 piers Box Jacking

Modular Concept JACKED STRUCTURES SA

Wandsworth JACKED STRUCTURES SA

The Box Jacking Concept JACKED STRUCTURES SA

Brent Cross 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 CC CONTRACTOR: VOLKER FITZPATRICK HOCHTIEF JV JACKED STRUCTURES SA 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 Underpass Deck 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 PilesModular foundations and Walls

Metro Stations Arch Configurations JACKED STRUCTURES SA Foundation BoxFoundation 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