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Manhattan Gate Middlesbrough
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Technical Specifications
Pile Type: Bearing
Number of Piles: 16no.
Diameter: 900mm & 1200mm
Depth: 26m
The Challenge
Middlesbrough council required bearing piles to support the development of a three-lane 'lifting' road bridge, with piles located on the dock sides and in the middle of the dock.
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The Solution
Martello worked with Dawson Wam to install 15no. 900mm and 1200mm diameter piles to depths of up to 26m. The piles were installed with a 15m permanent liner which was fixed to the to the pile reinforcement cage enabling the concrete level to be brought up through the water in the dock, to the upper casting level.
The barge platform to dock level was approx. 12.3m and the installation of the liner was to be within a 75mm tolerance, which was successfully achieved. An O-cell was installed into one of the centre pier piles for load testing.
The marine piles were tremied using a land based concrete pump to feed the piles.
The solution Martello provided, allows for large diameter piles to be installed through water as a column in an enclosed steel tube without the necessity to pre-drive any casings.
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