Projects
Chase Park Retaining Wall
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Chase Park retaining wall.
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Masonry beams were installed at 350mm vertical centres to provide non-rigid stabilisation of the masonry. The beams can accommodate slight movement and are specifically useful in controlling lateral forces excerpted by ground pressure.
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Pockets were formed through the wall to enable the installation of 60mm diameter Heli Piles. The Heli Piles were driven to depths ranging from 4M to 6M and tested until the design criteria was achieved.
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Further Heli Piles were driven to vertical depths of 3M to carry a reinforced concrete ground beam which would provide increased lateral stabilisation at the base of the wall.
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A prefabricated cage steel reinforcement is fixed in place. The ground beam is designed to prevent the base of the wall from pushing outwards.
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Fully compacted grade C30 concrete is poured to form the ground beam.
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Upon completion, the ground level is reinstated and the wall is rebuilt. The re-pointing mortar is natural hydraulic lime and sand.
Sections of this rubble filled stone wall in Gateshead had collapsed on to the nearby road. Upon closer inspection, the cause of the damage was due to the roots from the nearby Sycamore tree. The lower section of the wall was earth retaining and a quick, unobtrusive repair method was needed to stabilise the retaining wall to prevent further collapse. The Heli Pile and Beam system can be used where conventional piling rigs cannot.
The installation of this stabilisation system & the completion of masonry repairs was achieved by three men over a two week period.
This project was added to our site on 22 March 2006 and is currently filed under Structural Stabilisation .
Project Types
- Bird Control (1)
- Built Heritage (11)
- Concrete Repairs (7)
- Decent Homes (5)
- Non Traditional Housing (5)
- Structural Stabilisation (9)
- Structural Waterproofing (2)
