The Different Methods of Underpinning

Posted on 10th January 2019 Under Blog

Here at Rhino Piling, we try to be as valuable as we can to our clientele, which is why we offer a wide variety of services from piling to underpinning. We think that underpinning is one of the most important construction processes around and with so many different methods available, it is important that you speak to an expert in order to find out which one is most suitable for your requirements. Underpinning is the process of transferring the load of a structure that is displaying signs of subsidence onto a support that is installed within the ground. Read on as we go over the different methods that are available…

Mass Concrete Fill

As the traditional method of underpinning, the process known as Mass Concrete Fill involves excavating a worksite in a specific sequence and then filling it with concrete in order to help reinforce an existing piling foundation that was installed many years before.

Piled Raft

When a property has been affected by subsidence, a method of underpinning known as ‘Piled Rafts’ can be installed. During this process, the ground floor is taken away and small holes are created in the brickwork in order to reinforce the structure with steel piles. The excavation is then filled with concrete in order to form a new ground floor.

Pile and Needle Beam

As a combination of mini piling and steel reinforcement, Pile and Needle Beam Underpinning is used when subsidence has affected one side of a building. During this method, mini piles are placed on either side of the affected wall and are connected to a steel structure which carries and supports the load of the wall. After inspection, the structure is then covered by concrete.

Cantilever Beam and Needle

The final underpinning method is similar in many regards to the Pile and Needle Beam process; however, the work is completed outside of the property. This means that it is suitable for any and all builds because it doesn’t affect the inside. During this process, mini piles are installed on the outside of the property and then steel is used in order to cantilever (support) the weight of the build. It requires much more material to complete; however, it is actually cheaper to carry out because it is completed on the exterior of the property rather than the interior.

Underpinning can also be used in order to design a void below an existing building or reinforce the strength of a property in order to prevent subsidence occurring in the future. With so many underpinning types on the market it is important that you speak to a professional. The Rhino Piling team would be more than happy to assess for signs of subsidence and advise you on the most cost-effective underpinning method for your property. To find out more information, get in contact with the best experts in Piling Manchester has to offer today!