is a method in which you strengthen and reinforce a building base, which, if no action has been taken, can potentially be harmful. Underpinning is a way of raising the thickness of the base. If a builder wants to add more stories to a building, this can be done. Tree roots could also damage the foundation and use this method for correction.
The adjacent construction may have lower-than-existing foundations requiring lowering. If basements are built very close to an existing building, it may be necessary to change the foundation.
The reason is the existing house’s stability. Cracks may appear up to the base in a building and therefore need a remedy for the foundation.
METHOD OF UNDERPINNING FOUNDATIONS LONDON
Mass Concrete Method
Also known as the Pit Process, underpinning Mass Concrete is the most common and the oldest of all methods. The process involves drilling holes along the building’s external wall at fixed times and depth below the current base. After a quick review of any potential problems, the pits are then filled with concrete, leaving sufficient space for future dry packing.
Dry packaging aids in balancing the building’s weight and restoring a collapsing frame. In buildings where the original foundation was built on deep ground, mass concrete underpinning is used. It is a more cost-effective method because, in excavations, less hardware is used.
Base and Beam Underpinning
This method of aid is more of an addition or an improvement to the Mass Concrete process. It involves the construction under the current base of a single concrete beam to provide power. Instead of pouring concrete into open pits as in Mass Cement, the underlying frame and beam use steel bars to support them.
The process involves digging holes along the outside wall and covering them with cement at fixed intervals, lowering metal frames into the pits. The effect is cement beams reinforcing existing structures and thus a better frame. This underpinning approach is suitable for buildings requiring additional floors and requiring architectural use change. It is used in foundations both shallow and deep.
Pile and Beam Underpinning
For limited access systems that require deep foundations, this underpinning method is popular. The process begins by digging a hole under the earth and through the existing wall of the base. This hole is designed to support a vertical concrete needle beam in the delivery of the load. Piles are then mounted with a steel frame for support on opposite sides of the gap or either side of the foundation wall. With the needle beam going through the hole in the wall, the piles are then attached, firming up support. To fill gaps and add support to the beam, cement is applied. This process is used to move the existing load to a more secure and strengthened base from the initial framework. Others method of underpinning are:
Mini Piled Underpinning
Underpinning by cantilever needle beam method, and Pre-test method of underpinning
What should you know about Underpinning Foundations London?
Some facts about Underpinning Basement, Mass Concrete Underpinning & more!
WHAT IS FOUNDATION UNDERPINNING FOR?
The underpinning of the structure has many meanings since the word can be used in construction or even in the world of makeup. It is a foundation maintenance class containing push piers, helical piers, deep base piers, caissons, and other support systems.
The technique followed for stabilizing and increasing the stability of any existing structure or building in the field of construction foundation is called underpinning. Reinforcing the current foundation is achieved by increasing the new foundation’s breadth and depth. It brings the base to a deeper level of soil than the surface soil on which the building is built.
WHEN IS UNDERPINNING FOUNDATION REQUIRED?
Foundation underpinning is needed if you see any shift of shape on the walls of the building that the walls are beginning to bulge or crack.
Another aspect that provides a warning about the failing base is the faults that appear in the arrangement of the house and building doors and windows. On the floor of the house or tower, cracks can also form. The push pier method is the unique device usually debated with this homeowner.
When a home settles or cracks, soil movement under the foundation causes it. To combat this problem, engineers developed systems that move the home’s weight off the unstable soil to stable bedrock support. This is achieved by moving down the ground hydraulically galvanized steel piers until they touch bedrock. The home’s weight is then transferred to the piers through the use of rough steel brackets mounted to the home base. It is possible to adjust each pier bracket and pier combination to make the whole home level. The pier structure of the base is secured against the motion and returns the house to a living, stable state.
What makes our Underpinning London Company Unique?
When it comes to underpinning in London, Space Excavation are the company to trust. Our vast industry experience, whether it be underpinning foundations in London’s larger homes, or mass concrete underpinning around London, ensures that our clients can trust us to do what we say, and get the results they deserve.
Underpinning in London is done by many companies, but our unique combination of trusted building techniques and customer satisfaction guarantees keep us at the top of our industry.
What makes us unique is our dedication to setting industry standards, and guarantees for all our work. Underpinning foundations in London is big business, and critical to both residential and commercial property structures.
As an underpinning company with London based tradesmen, we know that time is money, which is why our underpinning contractors work closely with clients to deliver projects on time and on budget.
From discussing the requirements to delivering the results, our unique approach to keeping customers in the loop shapes all our underpinning work in London, and continues to make us an underpinning company in London that people trust.
Our experts do everything from mass concrete underpinning in London’s residential neighbourhoods to other methods of underpinning for London’s commercial hubs, giving us the portfolio of projects that make us stand above our competitors.
Whether you need underpinning basement work for your London home, or underpinning foundations for a new business premises, we offer service that delivers, and work that strengthens structures. Call us today for all your underpinning needs in London.
When Underpinning London is Required
When people see a crack in their building, they think underpinning is essential, but this is not always the case. As an experienced underpinning company in London we know that cracks happen for various reasons, including poor materials or excess moisture, not foundation related. For those who are wondering if it’s necessary to get underpinning specialists for their London home, here is some advise as to when that is needed:
Underpinning London Property is Required When:
- Underpinning is essential when adding building stories above or below ground. As underpinning specialists in London know, new construction puts pressure on structures, so getting an underpinning company in to strengthen the foundation can withstand this new load
- Underpinning specialists in London should be called when subsidence has occurred. Changes in soil condition where your property stands could lead to a foundational move, leading to the building sinking or shifting. In these situations underpinning in London properties can help to correct the problem
- When nearby building construction results in an alteration in the stability of the ground and a weakening foundation, get an underpinning company in London as a priority
- Getting underpinning specialists to your London property is important when original foundations are not strong enough to withstand ground changes, identified by wide vertical cracks on building walls.
- When there’s a change in building usage and the soil on which your property stands begins to shift, get an underpinning company to your London premises.
- Get underpinning in London as soon as your building footings have clearly been affected, either by a downward or sideways movement, a common issue in buildings constructed on loose soil.