Pier Foundation
What Is Pier Foundation?
Pier foundation: Piers are horizontal column that has a much wider cross-section than a piling. Piers are constructed in a dry location by digging a circular hole of large diameter, extending it to the desired depth, and then backfilling with concrete.
The distinction between a cast-in-situ pile and an ad hoc pier can be considered random. A cast-in-situ structure that is greater than 0.6 millimetres in diameter is generally been referred to as the"pier. Also Read: Pitched roof over existing flat roof
The distinction between the foundations for piles and piers foundation is in the method of construction. Although pile foundations transfer load through bearings and friction while pier foundations carry the weight via the bearing.
The pier foundation generally is less deep than the foundation of the pile. Pier foundations are preferred in areas where the top strata are composed of decomposed rock atop strata composed of sound rocks. In this situation, it is difficult to move the bearing piles into decomposed rocks. Also Read: Materials Used in Bond Breaker
Types of Pier foundation:
Masonry or Concrete Piers
Concrete or brick piers rely on the height of the stratum. If a solid bearing stratum has been established for up to 5m, masonry piers can be used. The size and the form of the piers will depend on the soil's characteristics as well as the bed's depth and so on. Also Read:Grants to replace old windows
Drilled Caissons
Drilled caissons are typically used to describe the foundation that is cylindrical. A caisson drilled is mostly an uncompressed member that is subjected to an axial force at its top, and response at its bottom. There are three kinds of caissons that are drilled. Also Read: Home loans for single moms
Construction of Pier foundation
Once the excavation has reached the load-bearing layer, the augers are replaced using under reaming tools that are used to build the bell, if needed.
The casing is utilized to stop soil from caving when the bore-hole is drilled further down into the soil.Also Read: Roof grants for senior citizens
Sometimes, drilling mud or bentonite slurry may be used to drill through soils that are sandy or gravely instead of the casing. Also Read:Roof eaves
At the bottom, the hole should be examined physically by dropping down to the bottom of the hole to verify that the load-bearing stratum of the hole has been reached and the under reaming process is correctly performed. Also Read:Quartz pool finish pros and cons
Advantages of Pier Foundation
1. The required material is readily accessible and offers a broad selection of design possibilities.
2. The foundation of a pier saves time and money since it doesn't require extensive excavation or the use of concrete, which creates minimal disturbance to the soil. Also Read: saw-tooth roof construction detail
3. The space between the home as well as the earth is enough for the installation of utilities like electric and plumbing wires between them.
4. It's comfortable to walk on the floor. It is not anchored to the ground and is beneficial for people who suffer from back stiffness or pain.
5. It is simple and only takes only a few minutes of material and time.
6. Workers are able to easily locate spaces between home and the ground, allowing them to address problems related to electrical and plumbing as there is plenty of room to walk around.Also Read:SBS modified bitumen roofing
7. Ground vibration, which is typically caused by driven piles is not present when drilling piling. Also Read:Catslide roof extension
Disadvantages of pier foundation:
1. The floors must be well-insulated and shielded from animals. Also Read: Composite roofing
2. The flooring beneath needs to be secured by the elements.
3. If one pier or post has been damaged, this could cause significant damage to the entire foundation. Also Read:How to install insulation in crawl space
4. It can be inefficient to use energy if it is not properly insulated.
