Driving concrete piles — Boston, MA Wood Piles Wood driven piles are an economical approach to supporting lightly loaded foundations. They require smaller machinery to mobilize, and material costs are relatively low. The wood can be treated with preservatives to prolong the structural integrity to last the life of the structure. Concrete Piles In the right soil conditions, concrete piles can provide an economic solution for pile loads between 80 and 150 tons. Piles can usually be cast to meet project schedules rather than waiting on steel mills to roll the piling. G. Donaldson is equipped to install concrete piles on any of your projects. H-Piles Steel H-Piles provide a pile installation with wide-ranging load capacities, and can be installed in difficult soil conditions. H-Piles can also be installed with minimal mobilization costs. G. Donaldson has installed H-Piles with capacities ranging from 20 to 230 tons. They are also a non-displacement pile which can be advantageous when pile heave or soil displacement may be of concern. Pipe Piles In the right soil conditions and pile design capacities, a driven pipe pile is often an economical solution for foundation support. Pipe piles can be filled with concrete to increase the capacity of the piles while limiting the overall amount of steel required. Caisson installation — Northampton, MA Continuous Flight Auger Because the entire process is done in one up-and-down motion, the CFA method of pile installation is both economical and time-saving. As the augers are extracted, concrete is pumped in, creating a pile in one quick motion. This method ensures that the walls of the borehole will not cave in, allowing for maximum strength within the pile. CFA piles are drilled piles thus serve as reasonable foundation support in vibration-sensitive areas. Bored Cast-In-Situ Piles Bored cast-in-situ piles, also referred to as drilled shafts or caissons, can satisfy seismic requirements while providing large capacity loads in both compression and tension. For heavy loads, they are the most economical choice.