The trailer is a preview of a project where we used a combination of push piers and polymer to lift a 45,000 sqft 15″. The project provided a multitude of challenges, such as a concrete slab that was not reinforced, foul weather, and building conditions that were not optimal.
We have had the Northern California and Nevada regions in our thoughts and prayers as flooding has ravaged the areas causing substantial damage to personal and public property and structures. As the water recedes, there may be structural damage that may need to be addressed immediately to ensure further damage does not occur due to settlement or further soil erosion.
As water moves, soil moves, it is a fundamental concept of erosion. Moving or shifting soil causes base support soils to erode and leads to structural settlement, voids, or shifting structures. In these cases, it is usually best to address the issue as fast as possible as the soil weight-bearing capacity needs should be restored.
Affected structures vary, from residential and commercial buildings to sewer and roadway infrastructure. There are many ways to deal with these issues in a time and cost-efficient manner. Here are some solutions for your needs.
Determining the cause of your problem
You must ensure that the cause of your problems is known. Without this, any proposed solution for your structure may be inadequate or too costly for the repair. If you are going to invest the money in repairing your property, then you should be sure the repair is successful and cost effective.
If the soil supporting the structure was compromised, any present voids need to be filled and the soil’s weight-bearing capacity re-established. Void filling and soil stabilization can be done using the EagleLIFT polymer injection process. Once injected, the polymer will actively seek out any voids below the structure and throughout the soil. The polymer will then begin to expand and densify, restoring or improving the weight-bearing capacity of the soil. The soil repair process is used for a variety of applications including roadway repair, embankment stabilization, dam repair and levee reinforcement and infrastructure sealing.
EagleLIFT offers two forms of structural lifting and realignment, utilizing the polymer injection process or through the use of helical and push piers. If a good option, EagleLIFT’s polymer injection process is by far the most cost-effective solution for lifting. A proprietary injection pattern is used to allow the polymer’s expansive qualities provide upward, which can result in foundation or structural realignment.
Flooding and soil saturation can cause roadways, culverts and bridge approach slabs to sink or become unstable, due to the base soil being undermined by washout or infiltration of the soil into manholes, culverts, and lateral lines. With the use of the EagleLIFT polymer injection application, the soils are stabilized, the infrastructure is sealed, and the structures roadway or bridge approach slab can be leveled and restored to use. The application is quick and cost-effective and can be completed on an emergency basis.
Outfall, Emergency Levee and Dam repair
Water control structures are needed to hold back the floods and if undermined can cause the waters to impact areas they were designed to protect. The Polymer injection application can be used to stabilize these structures by binding the soils and increasing their weight-bearing capacity. This can be used to help the soils from being undermined due to washout.
The EagleLIFT team is here to help you combat the issues that are being created by these floods. If you need any help, please contact Derek Berthelot at email@example.com.
Rancho Cucamonga, CA – EagleLift, Inc. a Class A General Engineering contractor specializing in foundation lifting and soil stabilization, has hired a full-time Professional Engineer to head its Engineering Department. EagleLIFT has hired Pablo C. Naranjo, P.E., G.E. , as Senior Geotechnical Engineer.
Mr. Naranjo has over 20 years’ experience working in slope stabilization, geotechnical engineering, and foundation investigations and design. He has worked with international firms including Langan Engineering and URS Corporation. Mr. Naranjo holds a BS in Civil Engineering from the Universidad Autonoma de Guadalajara in Mexico and a MS in Geotechnical Engineering from the University of Idaho.
“The addition of Pablo to the EagleLIFT family provides our customers with a full service contractor for their geotechnical repair needs,” states Don Moody, President of EagleLIFT. “Pablo is an expert in foundation repair and soil stabilization and he will help further our innovative processes and applications.”
EagleLIFT offers a comprehensive suite of technologies for rehabilitating structures that have been compromised by unconsolidated soils or a variety of other geotechnical issues.
“EagleLIFT offers the Deep Injection Process and piering applications for foundation rehabilitation, soil stabilization, roadway lifting, and culvert and sewer sealing,” states Mr. Naranjo. “I have worked with these applications for many years in both design and project engineering. I am excited to be on the EagleLIFT team and to help advance our customers’ project designs.”
EagleLIFT services the states of Nevada, California and Arizona.
It has operational locations in Southern and Northern California, Nevada and Arizona. EagleLIFT is a Class A General Engineering Contractor and a Veteran Owned Small Business headquartered in Rancho Cucamonga, CA.
“Geotechnical Aspects of Polyurethane Grout” Webinar Provides Engineers with Insight into the power of polymer
Technical webinar on utilizing polyurethane grout Injection for chemical grouting and soil stabilization
Today, EagleLIFT hosted a webinar with guest speaker Randy Post, Senior Engineer, Golder Associates, on the “Geotechnical Aspects of Polyurethane Grout.” The webinar provided deep insight on the applications of utilizing polyurethane grout for geotechnical applications, such as foundation repair, sewer repair, inflow and infitration mitigation, soil stabilization and slope stabilization.
The well attended event was the latest in a series of educational webinars that EagleLIFT is hosting to help provide educational opportunities for geotechnical engineers, civil engineers, environmental consultants, public works managers and faciltiy owners to learn how polyurethane grout may be a tool for them.
Randy Post is a registered Civil Engineer (AZ) practicing in geotechnical engineering, specializing in transportation, infrastructure, mining, and large facilities. He specializes in complex geotechnical projects involving bridges, retaining walls and large cut and fill slopes. He is a geological engineer has been very useful in working on projects involving rock slopes, rockfall, and geologic hazards. He also founded GeoPrac.net in 2007, a news blog and community site for geotechnical and geological engineers.
The hour long webinar was concluded with an in depth question and answer session, whereby engineers from across the country challenged Mr. Post and Mr. Barrett with interesting perspective, testing methods and applications for the polyurethane grout.
“I would like to thank Randy Post for sharing his in-depth knowledge for using polyurethane grout for geotechnical applications,” states Don Moody, President and Owner of EagleLIFT. “Randy lends a highly technical perspective on the effective uses and limitations of polyurethane grout. EagleLIFT is a knowledge provider and contractor and we want to make sure our customers are fully educated on our applications and approaches.”
Below is a recording of the webinar and a downloadable version of the presentation.
Drainage Channel Repair included Lifting and Leveling of structure and joint sealing against water intrusion
In the southwestern United States, Drainage channels are an important infrastructure tool for ensuring heavy rain events do not cause flash floods and subsequent property damage. Maintaining these systems is essential to make sure that communities are protected and public works systems, such as roadways, are not interrupted due to washout or pooling water. Riverside City College, located in Riverside, CA, was experiencing problems with a portion of its drainage channel and contacted EagleLIFT to perform the drainage channel repair.
Riverside City College (RCC) had approximately 450 linear feet of its drainage channel that had become undermined by water that was traveling underneath the concrete panels. The water began to washout the base support soils of the channel, causing voids and settlement along the channel’s bottom and sidewalls. The College was seeking a cost-effective solution to extend the life of the drainage structure and to avoid the cost of rip and replace.
EagleLIFT recommended and was contracted to perform the URETEK Method to stabilize the panels, fill the voids, and seal the joints to restore the water flow over the channel. The URETEK Method is a process whereby an industrial grade, high-density polyurethane is injected through 5/8” holes directly into the weak soil zones to stabilize, compact and densify the area. Once injected, the polymer initially moves throughout the injection point in liquid form, aggressively seeking voids and the path of least resistance, and then it begins to expand throughout the soil media and densify the soil.
EagleLIFT utilized a 4ft injection pattern along the bottom of the drainage structure and half way up the sidewalls. The pattern design was intended to provide consistent void fill and to adjoin the material to provide effective undersealing of the concrete panels. Since the URETEK polymers are hydrophobic, the material would push out any sitting water and protect the panels against future water intrusion.
EagleLIFT worked as subcontractor under Three Peaks Construction, who was contracted to install an epoxy overlay over certain areas of the channel after the voids were filled. EagleLIFT coordinated all activities with Three Peaks Construction and RCC maintenance staff to ensure work did not interfere with College operations.
All voids under the areas of concern were filled with material usage coming in at 25% under budget. RCC was able to use the cost savings for additional repair projects that they did not anticipate having the funding to complete. The project was also completed without any interruption to RCC’s operations.
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 the URETEK Method® to fill the voids and densify the remaining soil. The URETEK Method® 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. URETEK’s 486STAR polymer was ideal for this application due to its hydro-insensitivity, quick set time and it being environmentally inert.
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!