Consider These Factors When Drilling
Drilled shafts are deep foundation solutions used to support large structural loads. Also called drilled piers, caissons or bored piles, drilled shafts involve excavating soil, creating a cylindrical shaft, placing reinforcing steel in the shaft and filling the space with concrete. Drilling of this type goes back to the early twentieth century, so it is a long-established practice that has now become more common as faster and more dependable excavation techniques are being required. Pier drilling in the Bay Area makes it possible to install very deep, large-diameter shafts in many subsurface conditions, resulting in highly reliable foundation construction results.
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Drilled Shafts
Drilled shafts are high load capacity deep foundation systems that are used for structural support, slope stabilization and earth retention for retaining walls and sound barriers. They are also used for bridges, towers, tanks and buildings. They can be installed by the dry method, the wet or slurry method using a stabilizing polymer slurry, or by the casing method. Permanent casings are used only in corrosive environments, open cavity situations, shafts drilled through water, or in conditions where subsurface conditions would compromise the shaft. Otherwise, a temporary casing may be used after a hole of the required diameter is drilled to the required width and depth.
Considerations When Using Drilled Shaft Construction
Factors used when planning a project using shaft drilling include:
- Both the concrete used in the pour and the drill shafts must be able to withstand potential corrosion and the effects of water.
- Concrete used must have appropriate stiffness and strength so that it can fill the boreholes, filling the space without compromising the integrity of the fill and ensuring that the piling can support the required structural weight. Every area of the drill shaft must be reached.
- There can’t be any loose sediment (more than three inches in depth) at the bottom of the drilled shaft.
- Geotechnical reports are used to assess subsurface conditions.
- Use of proper drilling machines, including rotary systems, hydraulic power and others.
Reasons to Hire the Right Drilling and Excavation Company
To ensure a high-quality stable foundation that will last, it is critical to select a Bay Area foundation drilling company that will do the job exactly right. Consider these factors:
- Extensive experience.
- Excellent reputation.
- An excellent safety history.
- Superior customer service.
- The right skills, equipment and techniques.
Choose an Experienced Pier Drilling Bay Area Company
Contact Lassiter Excavating, your Bay Area experts for pool removal, excavation and pier drilling since 1989. We provide exceptional drilled shaft construction and excavation services for both residential and commercial customers.