Underpinning is a process in which additional support is placed below the ground level to strengthen the existing foundations of the building.
To support the building, you need to extend the foundations in depth and width so they can rest on the ground which can provide better support or simply the experts at Underpinning Woking experts at Southern Foundations Piling redistribute the weight of the building over a larger surface area.
Though the foundations of most houses are often seen as the last resort when tackling stability these days, there are times when there’s no other option. Although the technology involved in the support process has greatly improved in recent years, and there are now many different methods and strategies being available.
This article about Underpinning Woking services will help you to understand the various options for Underpinning the building so that you can discuss them with an investigation or building engineer at Underpinning Woking services before making a choice.
Where soil is weakened, or loosened, a soil consolidation process can be used instead of underpinning, which involves injecting a special type of grouting or resin foam into the ground. Foam-based Underpinnings can often be made very quickly and without the need to move out of the house
Mass concrete method
This traditional form of underpinning was a great concrete or mass-pouring method, dating back hundreds of years and not changing since then. It involves digging a void-shaped box at a specified depth under the existing building foundations and filling it with concrete in a specified way for the base-bottom-foundation effect.
This method is often used where the existing local foundations are shallow but can be implemented even if they are very deep. Heavy equipment is usually not required, labor costs can be kept low, and sometimes the building can continue to be used during work.
Beam and base method
The beam and base method is a reinforcement of the main concrete path and it includes a reinforced concrete beam built above, below, or to replace the current foot. This pole redirects the weight of the structure to several concrete foundations located in specific strategic areas, the placement and size of which depend on the ground conditions and the size of the affected area.
Where there is a risk of soil erosion after the measures have been applied, anti-have protection measures are often incorporated into the construction.
Screw piles and brackets
Underpinning with lots of screws and brackets can be done when traditional support is impractical, due to the need to digging too deep, or where there is no space to find a rig to accumulate near the property. This method can be done much faster than traditional techniques, so costs and disruptions can be reduced.
Routes that support narrow lanes are ideal when ground conditions vary or where access to foundations is limited and allows loads to be transferred to stable locations at depths of up to five feet. The technical installation of small pipes is better than large concrete, requiring equipment and expert skills snd services like Underpinning Woking provides.
Pile and beam underpinning
The pile and support beams can be made in conjunction with the small installation procedures. It involves installing mini-piles on each side of the affected wall and then removing the underground brick pack to install a pre-cut metal cage. When the cage is inspected by Building Control, it can be held to complete Underpinning.
Bulk Cantilever and beams Underpinning
It uses the same method as bulk and beam support, only for all operations performed without equipment. In this way, the removal of the fixtures and building floors is not necessary so that the cost and disruption can be significantly reduced. This method can also be done in conjunction with screw Pilling.
It is a system used where all property is affected by subsidence. All floors need to be removed and mini-piles are built, before the brick packs can be removed to strengthen the placement under the engineer’s instructions. After testing, modification is indicated to complete the Underpinning.