Iowa Wind Farm Case Study

Installing Vibratory Stone Columns

Ground Improvement – Installing Vibratory Stone Columns

PROJECT OVERVIEW

CNC installed vibratory stone columns to densify the soil so the contractor could use traditional foundation methods over deep foundations when installing the wind turbines.

Vibratory stone columns (VSCs) are extremely more cost-effective than typical over-excavation or a more costly deep foundation system. VSCs mean no spoils removal and a fast efficient installation process. This allows general contractors to use traditional shallow foundations.

TOP FEED VSCs

In this case, the soils allow us to use the top feed method. The top feed method is where we open the hole with the vibratory flot, place the rock in the hole, and then build the pile from the bottom up using multiple lifts.

If the soils were collapsible, then we would need to alternate to a bottom feet method

COMPUTER MONITORING SYSTEM

The computer monitoring systems that all of our VSC rigs are outfitted with are unique in the marketplace. CNC Foundations’s particular data logger shows the number of piles the time it took to install the piles and the bar pressure we achieved on every lift.

This gives a general contractor and an engineer of record amazing peace of mind throughout the project, which accelerates schedules which better utilizes dollars. Our computer monitoring system is another method of checks and balances provided by CNC Foundations, which then allows us to move through the schedule of the project a little quicker.

Project Details

CNC Foundations installed Vibratory Stone Columns on a Wind Farm in Iowa to improve the ground and densify the soils so that traditional, shallow foundation methods could be used, saving the general contractor time and money. The Vibratory Stone Columns are extremely more cost-effective than over excavating or deep foundation systems.

Not sure what geotechnical solution can work for your job? We can help.

Related Case Studies

Uplift Anchors

Vibratory Stone Column Uplift Anchor Installation at Western Carolina University

Cullowhee, NC

View Case Study

Vibratory Concrete Columns

Pre-Drill VSCs and VCCs Fitness Center Chicago Suburb Oak Brook

OakBrook, IL

View Case Study

Related Case Studies

Two CNC Helitech machines installing Vibratory Stone Columns

Vibratory Stone Columns

South Texas | Aggregate Piers / VSCs

A wind farm is a unique project that requires expertise in controlling settlement and a load testing process for the stability of the wind turbines.

View Case Study

Ball Park Village Phase 2 St Louis MO Vibratory Stone Columns

Ground Improvement

St. Louis, MO | Aggregate Piers / VSCs

CNC Foundations completed a project in St. Louis as an addition to Ballpark Village, an entertainment district adjacent to Busch Stadium.

View Case Study

Aggregate Piers & VCCs

Scott Air Force Base, IL | Rigid Inclusions

A new, six-story, 169,000 sq ft Visiting Quarters was planned for Scott Air Force Base. CNC Foundation’s design worked exactly as expected.

View Case Study

Let’s Talk

  • By providing my phone number to CNC Foundations, I agree and acknowledge that CNC Foundations may send text messages to my wireless phone number for any purpose. Message and data rates may apply. We will only send one SMS as a reply to you, and you will be able to Opt-out by replying “STOP”. For more information on how your data will be handled please visit our Privacy Policy.