6th March 2012:
Morgan Sindall Project Manager Robert Siddens reports on likely activities over the next two weeks:
Activities on site will be intensifying with the introduction of a second piling rig for the main building foundations. The foundation piles are producing a lot of surplus soil which is having to be removed by lorry at regular intervals. Next week sees the introduction of a third piling rig. This is a mini version of the large machines specially designed to work in root protection areas. Also next week we will have finished the piles to the main entrance which allows us to install the wheel wash system. This is a ride on/ride off piece of plant which automatically detects when vehicles are leaving the site and cleans their wheels. It filters and reuses its own water to reduce water consumption and avoid sending any silt down the drainage system.
20th February 2012:
The installation of the piling mat is ongoing. This is a temporary bed of crushed concrete about 400mm thick and is necessary to provide a stable base for the piling rig.
To reduce the carbon output of the project we try to reuse materials wherever we can. An example of this is to reuse the material recovered from the deconstruction of the three houses previously on the site as part of the piling mat. The material has to be crushed down to a suitable size and this activity will be carried out on site over the course of a couple of days starting on 20 February.
27 February sees the arrival of the piling rigs. These are the machines which drill up to 20m into the ground to ensure the foundations for the new building are on solid material supported by the deep concrete columns. The type of piling that has been chosen is called Continuous Flight Auger piling. This is the quietest form of piling and involves drilling out of the ground and pouring concrete into the hole rather than hammering piles into the ground.
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