Micropiles for Foundation Stabilization


Stop the damage with HELICAL PIER Foundation Systems

There is not one foundation retrofit system that can be claimed to be the best fit for every project or subsurface condition. Certain soil conditions can hinder installation and even prevent advancement of conventional underpinning solutions. Some of the more challenging soil profiles may include uncontrolled fill with construction debris or other large fractions, cobbles and boulders within native soils, extremely dense soil layers over weaker material, or karstic formations.

When such conditions exist, drilled and grouted micropiles offer a cost-effective, deep foundation option capable of penetrating obstructions to bear within competent bedrock. In compression applications, capacity is achieved through end bearing and also skin friction along the interface of the grout column and the bedrock. In tension applications, only the skin friction contributes to the micropile capacity

Micropiles are small diameter drilled and  grouted friction piles. Each pile includes steel elements that are bonded into  the bearing soil or rock – usually with cement grout. The bearing stratum is  logged during installation drilling to assure that bearing capacity is  adequate. Micropiles do not rely on end-bearing capacity, so there is no need  to establish the competency of rock beyond bond-depth. They can be installed  quickly in virtually every type of ground using highly adaptable mobile  drilling equipment.

Hollow bar  anchors are manufactured from high yield micro alloy steel tubing. Hollow bars  are installed using the injection bored method, which involves pumping at  pressure a cementious grout while the anchor is drilled into the grout. This  method has many geotechnical benefits and it improves a project’s overall  efficiency.

Advantages of Micropiles:

Fast one-step installation
Simultaneous drilling and grouting
Allows the use of smaller equipment at lower cost
Allows low overhead, limited access installation
Improves the ground (densification)
Offers higher skin friction
Total single corrosion protection by design

01. Helical Piers

Stop the damage with HELICAL PIER Foundation Systems

02. Steel Push Piers

Stop the damage with STEEL PUSH PIER Foundation Stabilization

03. Micropiles

Micropiles for Foundation Stabilization
our photo gallery to view some pictures of just a few of our piering installations

Micropile Gallery

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Why Choose Chance ® to Solve Your Foundation Issues?

Our highly trained team of foundation technicians and our Professional Engineers are dedicated to providing you with the best solution for your structural issues. Our engineer is licensed in PA, WV, and OH with a strong background in structural, civil, and mechanical engineering. Our workforce is consistently trained and educated on the several methods EFS offers for foundation stabilization. Every project comes complete with our Engineer’s Stamp of Approval. Our company utilizes both nationally acclaimed procedures and materials.

Please contact us for a free quotation and tell us more about your project

Engineered Foundations Solutions

412-921-7599 (Pittsburgh Office)

304-243-9900 (Wheeling Office)