Foundation Constructors, Inc.
Foundation Constructors, Inc.
81 Big break Road
Oakley, CA 94561
Phone: 925-754-6633
Email info@foundationpiledriving.com

Alternative Processes

Specialty Solutions

At Foundation Constructors, we have a unique perspective on specialty piles. Specialty piles are generally considered "problem solver" deep foundation systems. Many projects are faced with extensive construction constraints. In urban environments, vibration or noise may be an issue. Pile driving hours may be strictly limited. Construction is often planned adjacent to sensitive unreinforced masonry buildings, high tech equipment buildings, hospitals, or entertainment studios, where vibration is an issue. The site may be low overhead. The site may be found to be contaminated, making off haul and spoil disposal costly. When you factor in the indirect cost of these outside factors, a specialty pile often proves to be the most economical solution on a total project cost basis. At Foundation we offer augercast piles and our FDP-EX series (Foundation Displacement Pile Series). Our FDP-EX Series consists of the following:

1. FUNDEX Pile (Cast in place Displacement Pile)
2. TUBEX GI (Grout Injection) Pile (A torqued in displacement pile with an outer grout/soil coverage)
3. TUBEX Pile (A torqued in displacement Pile with an oversized tip.)
4. EDTTEX Pile (A torqued in displacement Pile without an oversized tip)

Because we install various types of conventional piles, we can easily compare the costs and advantages of using alternate methods.

Whether your project is in the design development stage or is already fully designed, our estimating and engineering team can work with you to select the appropriate pile for your project. We can help determine the right pile type for your project with limited information however the more information that is provided the more accurate we can be with piling and pricing options. Information we would like to have if available is site conditions, the column load and/or pile capacity required, and the geotechnical investigation. We work to understand your project’s particular constraints to find the right system for the job.

Specialty Pile Job List


 

TUBEX GI PILES (Grout Injection)

The TUBEX GI piles(Grout Injecion) are steel and concrete pipe composite piles that are screwed into the ground under very high torque and down-pressure. As the piles are installed, a high pressure grouting system is used to pump grout through the pile tip to create a soil-cement grouted zone around the outside of the pipe. TUBEX GI piles are true soil displacement piles. Unlike conventional drilling methods TUBEX GI piles do not produce drill spoil, which creates off haul costs, and reduces skin friction capacity. Tubex are soil displacement, and the grouting actually increases the pile’s effective diameter. TUBEX GI piles are ideal for contaminated sites to avoid spoils, in low overhead conditions, in restricted site conditions, and on sites where noise and vibration aren’t tolerated.

Download Tubex GI piles spec

TUBEX PILES

The TUBEX piles are steel and concrete pipe composite piles that are screwed into the ground under very high torque and down-pressure. TUBEX piles are true soil displacement piles. Unlike conventional drilling methods TUBEX piles do not produce drill spoil, which creates off haul costs, and reduces skin friction capacity. Tubex are soil displacement, and the over sized tips increases the pile’s surface are to allow for higher compression and tension capacities. TUBEX piles are ideal for contaminated sites to avoid spoils, in low overhead conditions, in restricted site conditions, and on sites where noise and vibration are not tolerated.

 

EDTTEX PILES

The EDTTEX piles are steel and concrete pipe composite piles that are screwed into the ground under very high torque and down-pressure. EDTTEX piles are true soil displacement piles. Unlike conventional drilling methods EDTTEX piles do not produce drill spoil, which creates off haul costs, and reduces skin friction capacity. EDTTEX are soil displacement with the same size diameter tips as the outside diameter of pipe. EDTTEX piles are ideal for contaminated sites to avoid spoils, in low overhead conditions, in restricted site conditions, and on sites where noise and vibration aren’t tolerated.

Learn more about our Edttex Pile Process

 

Fundex Piles

Sometimes referred to as Full Section Soil Displacement concrete piles, Fundex piles differ from augercast piles in that structural concrete and full length reinforcing of any configuration are used to construct the pile that is fully inspectable. A high torque Fundex rotary table forces a mandrel into the ground to the bearing layer. A sacrificial boring tip fitted to the mandrel base prevents soil and water from entering the mandrel. Upon reaching the required depth, a reinforcing cage is placed up to full length of the pile, and structural concrete with aggregate sizes up to 1"--not grout-- is placed in the pile. The mandrel is then extracted leaving the tip, cage and concrete in place. There is no possibility of soil intrusion into the structural concrete, and the cage is fully inspectable for placement and code-required concrete coverage prior to placing the concrete. Installation produces no vibration, noise or spoils.

Fundex piles are true cast-in-place soil displacement concrete piles.

Fundex Job List

Download Fundex Specs

AUGERCAST PILES

An augercast pile is formed by drilling into the ground with a hollow stemmed continuous flight auger to the required depth or degree of resistance. A fine aggregate (fine to course sand) is then pumped into the hollow stemmed auger under pressure. Auger cast piles have specific advantages for some installations with difficult excavation requirements, in environmentally sensitive areas and the right soil conditions. These piles, however, are not suited for contaminated or rocky soils.