There are several different types of underpinning. Shallow underpinning involves pouring concrete into the ground to reinforce it. A more traditional mass-concrete base is used with beams that distribute the weight of the foundation evenly. Various types of underpinning may require different types of excavation. Read on to learn about the different types of underpinning and which one may best suit your home. For more information about foundation repair visit https://atlaspiers.com.
Concrete slab underpinning, also known as slab jacking, screw pile underpinning, and resin injection, is the oldest type of underpinning. It was traditionally used to reinforce and increase the size of a foundation. However, it can be disruptive to your daily life. Geobear’s geopolymer underpinning technique can be installed in as little as two to three days. Whether or not you choose this method will depend on the specific circumstances of your property and the structural integrity of the area.
Driven piles are easy to install and require less time, but have considerable disadvantages. They must be installed outside the building and can cause excessive vibration during installation. Additionally, they can cause cracking and settlement in existing structures. Furthermore, driven piles need sufficient space for installation. Jack piles are an excellent alternative to driven piles. Jack piles are much cheaper to install and solve both of these issues.
Another method, called beam and base, involves building beams over an existing foundation. These beams support the structure and redirect the weight of the structure onto the mass-concrete base. Depending on the type of structure and the type of load applied to the foundation, these beams will vary in their construction. Most beams are reinforced concrete. Beam and base underpinning works are often performed using anti-heave precautions.
Piles are used when soil conditions are unfavorable and foundation settlement is an important issue. In some cases, soils are so unstable that they can actually cause foundation settlement. This is why piles must be protected. The best method for securing a foundation is to identify the vulnerable areas in the building. This way, you can plan ahead and determine the most effective underpinning technique. Soil properties also change over time.
Helical tiebacks are the most complicated type of underpinning. They are essentially square tubes inserted into the soil at an angle and can support up to 200,000 pounds. This type of underpinning requires a skilled professional with many different tools. In addition to the steel and concrete, helical tiebacks are able to support retaining walls and straighten bowed basements.
The process of underpinning is an effective way to reinforce an existing foundation. While it may be associated with remediation of failing foundations, underpinning is also used when adding floors to an upper story or to fill subsurface spaces. Underpinning is typically an important repair project, but the right method for your specific situation will ensure that your structure remains stable. This method is used extensively in urban areas and during the construction of adjacent structures.