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Cracked Foundation Repair with Steel Push Piers

clock January 16, 2012 04:19 by author
Steel Push Piers are the most popular form of foundation repair for settling homes. When installed by trained foundation repair contractors steel push piers will provide years of structural support.

Foundation Repair using Steel Push Piers

Foundation repair, steel push piers

One of the advantages of using push piers (resistance piers) for foundation repair is that they use quiet vibration free hydraulic equipment to  install the steel resistance piers. All of the installation equipment is highly portable and can be easily transported on the jobsite. After all of the steel push piers are installed and load tested, the structure can be immediately restored or lifted by transferring the load of the home to the piers. There's no time wasted, waiting for concrete to cure, and no soil to remove from the site. A measured factor of safety is verified, as the piers are 100% load tested to a force greater than the actual working load. This all means that you will get verified structural support for many years when you require steel push piers to be used on your home’s foundation.

Remember to always consult with an independent professional engineer before starting any structural foundation repairs and these repairs should only be performed by trained foundation repair contractors.

Steel Push Piers Installation

Below, the following steps the typical installation procedure for the largest selling Steel Push Piers:

1. Site survey: Pier placements are located around the structure and the location of underground utilities verified.

2. steel push piersExcavation: Small excavations or the entire perimeter is dug for access at each placement location. The space required at the foundation is usually about 3 feet square.

3. Prep of the foundation: This includes notching the concrete footing to place the push pier bracket under the stem wall, preparing the bearing area under the footing to a smooth and level condition, and adjusting the face of the stem wall to vertical at the point of bracket attachment.

4. Bracket Attachment: The steel resistance pier bracket is secured to the footing using anchor bolts. Attachment of the drive stand and the hydraulic cylinder that is used to force the pier pipe into the soil is mounted on the drive stand.

5. Push Pier Pipe Installation: The steel pier pipe is advanced into the soil using the structure as the reaction force with a 10,000 psi hydraulic pump and cylinder combination. The piers may be installed from outside or inside the structure. Pier installation continues until rock or suitable bearing-strata is encountered below the unstable soil near the surface.

6. Load Test: Every resistance pier is load tested by increasing the force on the pier to insure the rock or bearing-strata will support a load greater than needed to guarantee a factor of safety. Typically an engineer will determine the load of the structure and the desired factor of safety before the load tests are performed.

7. cracked foundation repairPreps for Restoration: Once all push piers have been installed, load tested, and the installation data at each placement recorded; lifting head assemblies and hydraulic lifting rams are placed on the steel piers. The lifting cylinders are connected with one or more manifolds and operated using a hydraulic pump.

8. Restoration: Under careful supervision, the load is transferred from the existing failing strata under the foundation, to the load tested piers. The structure can be transferred gently and evenly lifted to as close to the original elevation or to the recommendation of the engineer. The nuts at the pier caps are secured at each placement and the lifting equipment is removed.

9. Clean Up: The soil that was excavated at each steel push pier placement is now replaced and compacted. The site is left clean and neat.

Foundation Repair Solutions

If you have noticed cracks in your drywall, brick or foundation you might need steel push piers to provide structural support foundation repairs. Whether your foundation is concrete block, poured concrete or composed of stone, steel push piers should be your first choice as a foundation repair solution. Foundation repair or structural underpinning projects, with steel push piers, are usually completed in just days, not weeks.



Foundation Repair Piering

clock September 9, 2011 12:49 by author blogadmin
Hot and dry weather causes foundation problems and steel push piers solve them.

Foundation Repair Using a Piering System

 

 

The dry weather has a hold on much o the Midwest and many homes and homeowners are feeling its effects.Foundation repair, steel push pier Foundation repairs and hot/dry weather go hand and hand. As many soils dry, they tend to consolidate and this consolidation causes home foundations to sink. The first signs can be drywall cracking, exterior brick cracks and misalignment of doors and windows.

To stop this, homeowners need to look to the engineering community and quality foundation repair contractors that understand the benefits of steel push piers that are designed and engineered to perform.

Small, quiet and vibration free hydraulic equipment is used to install the steel push piers, also known as resistance piers. Piers, like the ECP Steel Pier System is designed to drive deeply through soils and bear on rock or other load bearing material. As soils shrink, from the summer heat, steel piers will support the homes foundation keeping the structure stable and crack free. The galvanized steel pipe used in the ECP Steel Pier System will provide many years of support, even in wet or corrosive areas.

Earth Contact Products (ECP), is the leading manufacturer of foundation repair and basement waterproofing products made in the industry. The steel piers belong to a family of patented foundatio repair products. These piers are the top choice for foundation repair used by contractors. Each pier is load tested after it is installed. The piers are able to develop a factor of safety because the piers are installed and load tested individually using the maximum weight of the structure as the reaction force. During the load transfer, high pressure hydraulic jacks are placed at many locations, reducing the load on each pier. 

Piering Systems

Many other pier systems may look like or are promoted to be “as good as” the best steel pier system but fall short on many fronts. Some systems drive concrete cylinders very shallowly into the soil and try to provide support for homes. During dry season the short comings of concrete cylinders become obvious. First, as the soil dry’s it shrinks and pulls away from the cylinders much the same way you notice that the soil around your home pulls away from your foundation. This causes settlement and cracking throughout your home. This shallow piering method is not a long term solution to supporting your home.

Other pier systems use un-galvanized pipe or low pressure hydraulic systems that cannot drive the pier pipe nearly deep enough. Many systems also use bottle jacks (simple car jacks) in an attempt to drive pier pipe or to lift a home. Bottle jacks simply are not designed for this type of application. Many times they can create more damage to the home than was originally found.

Simply, your home is probably your most valuable asset – don’t settle for inferior pier systems to be used to support your home. Demand that your foundation repair contractor use the best designed and engineered products like the ECP Steel Pier System. Your home is worth it and you will not have to worry about future foundation repair problems.

 



Foundation Repair Methods – The good and the bad

clock July 19, 2009 19:04 by author blogadmin
Understanding the good and the bad of the different foundation repair methods prevents homeowners from spending their hard earned money badly.

 

Understanding the positives and negatives of each foundation repair method will help with your decision when picking a foundation repair contractor. Some contractors advertise that they can put in every type of piering system, other concentrate on just one or two piering methods. The “jacks of all trades” usually are the master of none. They generally take short cuts and due to the fact that they are not thoroughly trained in each specific method. The foundation repair contractors that pick a system or two and stick with it generally can master the methods and provide a better quality job. They may not have the answer for every situation but they will generally provide better quality work on the jobs that they accept.

The next thing that you need to know is the positives and negative (limitations) of each foundation repair method. All commonly accepted methods have their place or application where they shine. Some methods, like steel push piers and helical anchors, are more adaptable to different situations, yet even they have their limitations. Using the correct method for your particular application is the difference between a job well done and job that is only a temporary band aid.

 

 Concrete Concrete Cylinders  Helical  Push
cheap      X       X    
utilizes skin friction for support      X       X    
bottle jacks used      X       X    
shims used for leveling      X       X    
high failure rate      X       X    
works in confined spaces         X     X    X
engineered lifting system         X    X
multiple bracket designs         X    X
Load tested during installation         X    X
Design flexibility         X    X 

 

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