Pesky Beavers Cause Havoc at a Rio Vista, CA Ferry Loading Ramp

The Problem
Caltrans had a problem with one of its Ferry loading docks in Rio Vista, CA – it was being undermined by a family of beavers that had made a home underneath the boat ramp!  As strong as the ramp was built, the concrete would not be able to withstand the significant weight stess on its own, it would need adequate support soils to help support it.

The beavers had caused voids ranging from 6″ to 1′ throughout the 44’x24′ slab, and the voids needed to be filled and the weight-bearing capacity of the soil restored or there would be potential for service interruption. Caltrans contacted EagleLIFT to see if the problem could be solved.

The California Slab Lift Solution
Once the void locations were determined by use of Ground Penetrating Radar (GPR), EagleLIFT utilized its polyurethane injection proces to fill the voids and densify the remaining soil.   The process is a unique application that allows for a high density structural polymer to be injected underneath a structure with only 1/2″ holes in the slab.  Once injected, the polyurethane seeks out the voids in liquid form and then it begins to expand through the void and the adjacent soil, creating a subsurface weight-bearing monolith.   Our polymer was ideal for this application due to its hydro-insensitivity, quick set time and it being environmentally inert.

The Result
The loading ramp was stabilized in 3 shifts, minimizing the downtime of the dock and restoring service in one day.  All of the voids were stabilized and the weight-bearing capacity of the concrete ramp was restored. All of this was done without harming one single Beaver!

August Employee of the Month

Cordero-300x296Cordero is the Production Coordinator for EagleLIFT, he has been a team member for two years.  He does much more than schedule jobs for three states.  Cordero orchestrates nearly every facet of a project pertaining to and supporting the Production Department.  During the course of the last two years, Cordero has helped implement multiple processes and standard operating procedures.  This structure has benefited both crew members and the bottom line of our business.  He is a highly valued member of our team.
Thank you Cordero for all you do!

Road Warriors Update – Eureka

 

 

 

 

 

 

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Our Road Warriors, Don and Cliff (with the help of Michael), recently returned from a trip visiting various CalTrans districts in California.  This journey also brought them through the Legendary Bigfoot territory and a brief stay at the Eureka Inn!  We’ll have to see where they venture off to next! 

June 2015 – Employee of the Month

Congratulations to our Employee of the Month, Kyle Olsen!  Here he shares a few tidbits about himself, favorite things to do, and future plans:

kyle olsenMost rewarding thing about being on the EagleLIFT Team
Great company with compassionate leaders who care for the individual employees.
What are your interests/passions?
Martial Arts, Outdoor Activities
Who/what provides you with a strong foundation in life?
 Good moral grounds and a momma who taught me well.
How do they uplift/inspire you?
She is a hard worker, who has gone through everything from the highs to the lows, and she raised two very rowdy boys all alone. She worked late hours to come home and do something outdoorsy with us, made us dinner, sacrificed to make a good childhood for my brother and I. We were privileged and loved to have her, and to date she works through the loss of her husband(s) while my brother and I were young, and cares deeply for people and helps them to the extent that it spreads her thin. A lot of people would be lucky to be even HALF as strong as she was for my brother and I. 
 Where do you see yourself in the next 5 years? 
Running the business!!!!
One thing we’d be surprised to know about you?

I used to be an avid cage fighter, traveled most of South America, and have other stories that would keep you entertained for hours.

Here We GROW Again!

After 15 successful years in Southern and Northern California, EagleLIFT has opened a new office in Hayward, CA to accommodate our growth.

Our new office is located at: 28424 Century St., Hayward, CA.

EagleLIFT North is staffed with a Regional Manager, 4 representatives and a local Operations Crew; ready to serve you!

 

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AGSS Chemical Soil Stabilization: a Cost-Effective Way to Neutralize Expansive Clay Soils

Expansive clay soil causes an extensive amount of damage to roads, walkways, foundations and other structural elements. According to the American Society of Civil Engineers, in a typical year, expansive soil causes greater financial losses to property owners in the U.S. than earthquakes, floods, hurricanes and tornadoes combined.

These statistics are surprising to many people, and that’s probably because the damaging effect of expansive soil typically happens in a gradual manner. Tests have demonstrated that clay can expand in volume by as much as 10% when it absorbs water. In doing so, it can exert as much as 5,500 pounds per square inch of pressure. This pressure can be applied as an uplifting force, as a sideways force, or from multiple directions.

Expansive clay soil has another characteristic that also causes structural damage: It contracts when it dries out. So after pushing up against a sidewalk, slab or wall during wet periods, it shrinks away as the soil dries out, creating voids that can also cause concrete elements to crack and sink. The deep cracks that occur during prolonged dry periods allow for greater water penetration when the weather changes, increasing expansion pressure.

Chemical Stabilization Methods for Expansive Soil

One way to protect foundations, sidewalks and other structures from expansive soils is to improve drainage in the area around them. Basic protective measures like channeling roof runoff away from a building and surrounding a foundation with highly permeable soil have proven to be effective.

However, sometimes it’s not possible to control the amount of moisture that gets into the soil. Roadways, parking lots and airport runways are simply too large to protect with water-management measures. This is where chemical treatment proves to be especially valuable.

As the name implies, chemical soil stabilization works by chemically altering the clay particles in the soil. Because of the mineral composition of clay and silt, these soil elements have a negative surface charge. Consequently, they tend to attract a positive charge, which can be found in water molecules. When clay-rich soil gets wet during rainy weather, water doesn’t pass through the ground like it does in soil that has a high sand and gravel content. Instead, clay particles attract and hold water molecules. The added volume of the retained water causes the soil to expand.

Chemical Ground Stabilization Process

In the chemical soil stabilization process, an ion exchange solution is applied to the soil to reduce the negative charge of clay particles. Once this happens, clay particles will actually repel water, allowing it to drain away.

There are two principle ways to apply the ion exchange solution. It can be sprayed over loose soil and mixed into the soil before the soil is compacted. This technique is often used prior to constructing a road, sidewalk or other slab-type element. A second application method is to drive perforated rods into the soil and inject the stabilizer under pressure. This technique us useful when soil stabilization needs to be done around existing structures, and when clay-rich soil extends to greater depth.

Home/Tract builders, airport taxiways/runways, HOAs, COAs and all new construction have benefited from the ESSL process. When you have an expansive clay soil problem, the AGSS Chemical soil stabilization method is your proven answer.