Underpinning from Inside a Building

Problem

The Customer has experienced subsidence of the property due to trees in the back garden and fluctuations in ground moisture levels, causing the walls to move and cracks to appear.

Access to the outside wall was not possible so underpinning needed to be carried out inside the building. In addition to the subsidence, the customer was also looking to redevelop the extension from single to two storeys. 

Solution

Using the ABC 400H hand held torque and keeping the powerpack outside the house. The Piles were installed quickly and quietly, underpinning brackets were then fitted and pre-loaded to design load. This was then back filled around the piles and the floor reinstated. The building is now ready to be developed to a two storey.