Caissons are watertight structures used as foundations in construction projects, particularly in areas with challenging soil conditions, like Los Angeles County. Piles similarly stabilize structural loads. Foundation Repair LA Inc. constructs caissons in Los Angeles to stabilize your buildings and help resist soil movements, ensuring enduring structural integrity.
What Are Caissons?
“Caissons”, “piles”, and “friction piles” are all similar structural supports for the foundations of your home and, or retaining walls. The difference in these terms (caissons or piles) primarily has to do with the engineering design factors, but they are similar to each other; concrete columns that are rebar reinforced, reaching down to acceptable stable depths.
Caissons and piles are used in particularly challenging soil conditions where hillside factors or even flat areas with soft ground exist. Depending on project requirements, caissons and piles can be built on-site or prefabricated. Their primary function is to distribute loads effectively, resist soil movements, and provide a stable base, ensuring the durability and safety of the overall structure.
Why Does Your Property Need Caissons?
Your property may need piles and caissons if:
- Your property is on a sloped hillside.
- Your property is located in an area with soft, unstable, or expansive soil conditions.
- The construction site is near bodies of water, such as rivers, lakes, or coastal regions.
- You’re planning to build a structure with heavy loads, such as a high-rise building.
- Your building is over rock formations or soil strata that require a specialized foundation.
- Your building is located in an area prone to seismic activity.
Why Do You Need Caissons in California?
Caissons and piles are indispensable in California. The state’s geologically diverse landscape, ranging from soft alluvial soils to hard rock formations, requires tailored foundations to ensure structural stability and mitigate earthquake risks. Caissons in Los Angeles provide deep foundation support, anchoring structures to stable bedrock layers and distributing loads effectively, which is crucial for resisting ground movements during seismic events. Additionally, in coastal regions susceptible to erosion and water table fluctuations, caissons serve as barriers against soil liquefaction and provide a reliable foundation.
When Are Caissons Necessary?
- Failures in hillside foundation supports of either existing homes or retaining walls
- Caissons and piles are a very economical and efficient way of reaching stable support, eliminating very large and deep continuous excavations, particularly where limited access conditions exist
- Underpinning of existing structures for reinforcement and to stop settlement
- Creating deep foundation support in areas with challenging soil conditions
To learn more about caissons in Los Angeles, contact our team to schedule an appointment and receive detailed information.
How Are Caissons Installed?
We begin by drilling into the ground using specialized equipment such as rotary drills or augers, depending on soil composition, project specifications, and site access. In locations where drilling equipment cannot reach, hand-digging is used instead. Our team carefully monitors the process to ensure precision and alignment, employing temporary casings or drilling fluids as needed to prevent the hole from collapsing.
Once the hole is complete, we insert reinforcing steel cages to strengthen the caisson and provide structural integrity, then pour concrete to fill the hole completely and encapsulate the steel reinforcement. After the concrete has cured, the temporary casings are removed, leaving behind a sturdy, stable, and durable caisson foundation.
Caissons & Piles FAQs
How are caissons constructed?
Caissons or piles are either hand-dug or drilled into the ground using specialized equipment, inserting reinforcing steel cages, and pouring concrete into the hole. The concrete fills the hole completely, encapsulating the steel reinforcement and providing a sturdy foundation.
What types of structures can caissons (piles) support?
Caissons/piles can support a wide range of structures including:
- New or existing homes
- Retaining walls
- Decks
- Hillsides
- High-rise buildings
- Bridges, overpasses
Are caissons (piles) expensive?
The cost of caissons in Los Angeles can vary depending on factors such as the depth of the foundation required, the size of the structure being supported, and the complexity of the soil conditions. However, they are a worthwhile investment because they provide long-term stability.
Is a geologist required for caissons (piles)?
Yes. A soils engineer and a geologist are required where it is determined that deep or poor soil conditions exist, or where any hillside or sloped condition exists. Our inspectors will assess and recommend what your conditions will need. Generally a full “soils report” by a geotechnical engineering firm is required prior to structural engineering and building permit issuance.
Why Choose Us to Install Caissons in Los Angeles?
Foundation Repair LA Inc. offers unparalleled expertise with decades of combined experience in foundation repair. As a smaller company, we ensure every client receives the care they deserve. Licensed with the Contractors State License Board for both C-8 and B licenses, we uphold complete transparency and integrity in all our dealings. Feel free to request an estimate, allowing us to evaluate your foundation requirements and steer you toward the optimal solution for enhancing your property’s stability through caissons in Los Angeles.
