Structural Excellence Since 1946
For those looking for dependable solutions to laterally displace soil particles and stabilize construction projects, look no further than Hale Built Group's Displacement Grouting Solutions. Our experienced team works with clients to maximize the potential of the space they're developing while also considering potential dangers like groundwater flow or soft soils.
Whether you need engineering expertise, in-depth geotechnical investigation, or other related fields, Hale Built Group is your go-to partner for creating cleaner foundations and solid structures. We combine practical experience and modern technology to provide reliable results that last.
Let us help you ensure your project is structurally sound for years with our tried and true grouting methods!
Grouted displacement is a form of deep foundation installation that uses grouted columns later to displace soil at the base of a deep foundation. This helps improve bearing capacity, reduce settlement, and support against rotation and lateral loading of deep foundations.
Grouted displacement works well in areas with variable or poor soil conditions where larger foundations are needed to support substantial loads. In addition, it reduces installation time and cost as it usually requires less equipment than other deep foundation options.
Lastly, a convenient aspect of displacement is that contractors can easily adjust or supplement construction plans with this convenient method, often requiring minimal changes to existing drawings and engineering instructions.
Grouted displacement is an effective ground improvement technique with many advantages. The process reduces contaminated sites by removing contaminated soil and taking it to a designated area where it's disposed of safely. This process also replicates the original terrain without leaving contaminated areas behind or needing to fill space with spoil material.
Grouted displacement increases bearing capacity by improving the foundation's soil across the soil profile without any soil removal, extending support from the edge of the bored pile to adjacent project areas with minimal spoil. All these factors make it simple and cost-effective for contractors looking for stability, greater design flexibility, and rapid construction.
Several displacement piles are found in displacement grouting deep foundation systems. These include but aren't limited to systems such as the precast pile and cast-in-place pile. In the following sections, we discuss the differences, similarities, and uses of some of the most commonly found pile systems in deep foundation construction.
Displacement piles – like bored and drilled bridges – are integral to many infrastructure projects. For example, we often use it when building a bridge in an area with liquid soil where you must guard against settling.
Bored displacement piles will drive better into cohesive soils and work best in larger diameters due to the pushing on the walls creating load-bearing shafts.
Drilled displacement piles, on the other hand, move the soil out of place and can be done underwater without vibration or noise, making it ideal for seismic areas.
Precast piles and cast-in-place screw piles are two common types of piles used for foundation jobs. Precast piles are manufactured at a concrete facility and then transported to the construction site for installation. Cast-in-place screw piles, on the other hand, are installed directly at the construction site.
These screws are driven into the ground with a particular machine, which enables them to reach great depths. Precast piles have one main advantage over cast-in-place screw piles: contractors can make these months or years ahead. The pre-planning process allows projects to stay on schedule during weather delays or setbacks from other trades. Plus, precast piles have uniformity, so contractors can sort out potential issues before reaching the job site.
Conversely, once installed cast in place screw piles withstand varying soil conditions and work well in unstable ground while using minimal manpower. So whether you're looking for an option, you can trust in a hurry or something that will stand up to solid soil — precast piles vs. cast-in-place screw piles — there's an answer just right for your context!
When it comes to drilling piles, Continuous Flight Auger (CFA) and Sectional Flight Auger (SFA) piling are two popular methods. At a glance, they seem similar; but critical differences between the two help indicate which one is best for your project.
Both involve drilling and digging deep into the ground, but where CFA relies on cement to stabilize it, SFA uses grout. One of the most significant advantages of CFA over SFA is its speed; depending on soil composition and other factors, CFA can be up to four times faster than SFA creeping through the earth.
On the other hand, if you've got to wend around obstacles like existing trees or pipes in hard soil, then SFA is probably better suited. It's a better option because it has greater maneuverability-being split into sections helps here and can account for irregular terrain more easily. All in all, both processes serve their purposes in different scenarios.
Partial displacement piling foundations provide a cost-effective and relatively low-effort solution for many building projects. The partial displacement pile is a driven pile that uses a unique single-tip displacement tool to displace the surrounding soils rather than completely displace them. In addition, a steel rebar cage is often added to these displacement piles, aiding in additional strength and stability more than the full displacement piles.
However, when greater capacity and safety are necessary for structures in extreme conditions, it's best to use full displacement foundation systems as it fully displaces the surrounding soils rather than partially push them aside. In this situation, expert professional contractors can ensure success with proper techniques and specialized equipment.
Grouted displacement piles are commonly used in compaction grouting and other subsurface compaction processes. Additionally, contractors mostly use ground construction for tunnels, building foundations, and soil stabilization. Additionally, these piles can be installed beneath existing structures to densify soil and increase the overall strength of a foundation.
It is important to properly place these piles during compaction grouting projects to deliver increased compressive strength and decreases in the settlement potential of the project site. Professionals experienced in compaction grouting should be hired to use this reinforcement method for increased safety and a successful outcome.
At the Hale Built Group, our area of expertise is deep foundation displacement grouting, so if you need a quality contractor to help your construction project succeed by reinforcing its base, rely on us to get the job done. We wrote this article to inform and educate you on what we are capable of, but there's no better way to experience it first-hand than with a consultation.
We invite you to contact us today for a project consultation to get started!
