Shallow Footings – Spread Footings – Combined Footings
Shallow Footings
Shallow footings otherwise called as shallow foundations are generally used for residential construction and are placed at a shallow depth situated beneath the lowest part of the structure, they are typically less than its width. A footing is the first constructed element of a structure which is built after excavation. Shallow foundations are regularly used as they are in proportion easy to construct and are the most economical foundation system, they also transfer building loads to the earth near the surface, rather than to deeper soil or rock layers. A considerate inspection of the foundation site and comprehensive data of the subsurface stratum is required to design the foundation and avoid any future degradation of the base performance.
Spread Footings
Spread footings, also known as isolated footings or spread foundation, are used when the soil is not able to support the weight of the building evenly. These are typically wider than shallow footings and are placed at a deeper depth. It is crucial that it builds strength for a building or home’s foundation and the sole purpose of spread footings is designed for the weight of the structure to be transferred to the underlying soil in a way that prevents major settlement or subsidence which is common in what we call blue clay which is also known as bad soil. Spread footings are designed based on the feature of the soil and the anticipated loads from the structure. There are many factors related to the soil's bearing capacity, settlement elements, and any future lateral forces must be considered during designing projects.
Combined Footings
Combined footings are used when two or more columns are close together and their footings would overlap with eachother. This is when two columns are small, and the bearing capacity of soil is lower. These footings are combined into a single footing to reduce the amount of excavation required. They are also required when there is a foundation wall that is longer or taller than the other walls. It involves the use of a foundation or footing to transmit the building's weight to the earth beneath it. The pillars of these types of footing may be at the middle of one post and may be at the edge of the footing. When there are boundary walls, the construction crew cannot continue the foundation to the other land. Therefore, they have to build a column at the edge of the footing. Give TPL Construction a call today for your dirt work and project needs. We love to see our clients dreams come true. Located in St. George, UT. We cover all of Southern UT. St.George, Washington, Santa Clara, Ivins, Kayenta, Gunlock, Hurricane, La Verkin, Virgin, Spingdale, Zion, Apple Valley, Colorado City, Hildale, Cedar City & Enoch.
Tyler Ledkins 801-556-4774
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