JGL has the capabilities to construct shafts of all sizes and depths, in all ground conditions, by all techniques. Our shafts range from 2.0m id to 25m id by caisson and from 1.5m id to 30m id by underpinning. Larger shafts require us to utilise other construction techniques.
Joseph Gallagher has been involved in sprayed concrete works for both tunnels and shafts. This method of tunnelling is well establish for large diameter tunnel construction throughout the UK. We have used this type of tunnelling in London, for Crossrail, London Underground and many more.
Hand driven tunnelling is hundreds of years old and provides flexibility when encountering unexpected ground conditions. Joseph Gallagher is recognised for its expertise in large hand driven tunnels in London Clay and other mediums.
Our expertise of shield driven tunnels includes construction of tunnels from 1.2m id to 7.15m id and range from simple handwork to full face EPBM and slurry tunnel machine drives.
Joseph Gallagher has been involved in the construction of the majority of the new escalator shafts in London for many years for Transport for London.
Microtunnelling is a remotely operated, small diameter tunnel which is achieved by jacking pipes of concrete, or other suitable materials, behind a tunnelling machine, from a launch shaft into a reception shaft.
Joseph Gallagher installed a new pedestrian underpass through the existing viaduct allowing access to both sides of the railway, easing congestion and providing step-free access for passengers.
Joseph Gallagher were contracted to construct the launch tunnels for the two Central Section Tunnel Boring Machines.
Construction of passageways using Traditional Squareworks, permanent works consisting of steel frames encased in concrete or reinforced concrete.
The River Humber Gas Pipeline Replacement Project is a £100m design and build contract issued by National Grid to replace the Feeder 9 high pressure gas pipeline under the River Humber.
Microtunnelling under the Coast Road and A19 roads.
Shaft construction and tunnelling works for Scottish Water
Project for Wessex Water using shaft sinking and microtunnelling processes.
The construction of TBM launch tunnels on the Northern Line Extension Project from Kennington to Battersea Power Station via Nine Elms.
Joseph Gallagher Limited were engaged by Skanska to provide a tunnel as part of their flagship Project Laurette. The project being a state-of-the art pharmaceutical Research & Development facility for the global biomedical giant AstraZeneca.
The construction of a passenger transfer link between the Crossrail and Bakerloo Line Stations at Paddington.
The construction of a new invert and full-section strengthening to the existing dis-used Victorian brick-lined railway tunnels running under the Connaught Passage which connects the Royal Victoria Dock to the Prince Albert Dock.
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Key wining factor of the project to engage reader.
A large complex project to upgrade a very busy station to relieve congestion.
The design and construction of a new access drift in to the existing mine with the principle aim of the New Drift Project is to provide the access, egress and ventilation requirements.
Provide ventilation and emergency access to the main running tunnels at two separate locations – Eleanor Street and Mile End.
The work involves the construction of a new lift shaft and an access adit at the bottom leading to two cross-adits connected to the northbound and southbound Victoria Line Platform tunnels.
Southern Water’s £300 million environmental improvement scheme, in order to treat the 95 million litres of wastewater generated each day by over 250,000 residents of Brighton and Hove and the surrounding area.
Green Park Station Upgrade was key for the Olympic games in 2012 to allow customers to change onto the Jubilee Line for access to the Olympic park and to provide step free access for passengers with restricted mobility.