How much do Geopiers cost?

Geopier Rammed Aggregate Pier Installation Cost In 2016 Geopier quoted 300 Rammed Aggregate Piers (28′ deep / 30″ diameter) for $387,000. The 48-hour load test plus footing cost $31,000. In addition, we had $54,000 of spoils removal.

How do Geopiers work?

Geopier System (Rammed Aggregate Piers – RAPs) is a ground improvement method that prestrains and prestresses the soil using soil “replacement” and soil “displacement” technology to strengthen soft soil and loose soil with very dense, stiff, rock columns constructed by heavy equipment crowd force and vertical impact …

How do aggregate piers work?

Aggregate Piers are made by pre-drilling a hole into the soil of foundation, lifting the aggregates, and then tamping them into the hole. This lifting and tamping process is repeated until the void is filled with aggregate, and each additional ramming step creates a tighter, sturdier foundation.

What are aggregate piers?

Aggregate piers are columns of compacted stone installed in groups in poor soil to increase bearing pressure and mitigate settlement under structural footings. They are a cost-effective method to reinforce soft, cohesive soil and poor fill for all types of structures.

What is a vibro pier?

Vibro (aggregate) piers are the construction of stiff aggregate piers to reinforce fine-grained soils. It’s a technique first developed by our company founder, Johann Keller, that we’ve used on thousands of projects since.

What is a helical pier?

A helical pier is a foundation pin made of steel that contains helices just like screws. It is driven into the soil, to depths below the frost line by use of a hydraulic system.

What are Geopiers made of?

The Geopier® Systems are made up of Rammed Aggregate Pier® elements.

What is stone piling?

Like most ground improvement techniques, Stone Piling or stone column are used to reduce the settlement & increase the load bearing capacity. They also accelerate soil consolidation as a result of the drainage capacity of the Granular material within the column which act as pore or water pressure evacuation points.

Are helical piers better than concrete?

Using Helical Piles instead of Concrete Benefits: Helicals are a permanent foundation solution, that will last you a lifetime. The installation is clean and no excessive excavating is needed. Helical piles can be used for any size project. Helicals can be built upon the same day, there is no waiting time for curing.

Who invented Geopiers?

Nathaniel Fox, PE, the inventor of Geopier®.

How much are rammed aggregate piers?

“Based upon job experience, labor will cost $300 to install one aggregate pier; therefore, the total labor cost to install 100 aggregate piers can be estimated at $30,000.”