The Challenge: A Settling Retaining Wall Threatening Stability

At one of Frederick County Public Schools, a retaining wall was experiencing gradual settlement, raising concerns about long-term stability. The primary cause of this issue was poorly compacted fill soil, a mixture of gravel, sand, shale, and organic debris.
Why Is Retaining Wall Settlement a Serious Issue?
When a retaining wall is built on unstable or loosely compacted soil, it can gradually sink, shift, or develop cracks over time. If left unaddressed, the structure may continue to settle, potentially leading to:
✅ Structural Failure – Excessive movement weakens the wall’s ability to hold back soil, increasing the risk of collapse.
✅ Safety Hazards – A failing retaining wall can create dangerous conditions for students and staff.
✅ Costly Future Repairs – Delaying intervention could lead to more extensive damage, requiring expensive reconstruction instead of stabilization.
To prevent further movement and protect the structure’s integrity, the school required a permanent foundation stabilization solution with push piers.
The Solution: Push Piers for Deep Foundation Stabilization
To prevent the retaining wall from further settling, LUX Foundation Solutions installed a push pier system, a proven method for stabilizing structures built on weak or shifting soil.
Here’s how the process worked:
Step 1: Site Preparation & Excavation
The team carefully excavated the area around the wall’s foundation to expose the foundation footing. This step ensured proper access for push pier installation while minimizing any disruption to the surrounding area.
Step 2: Push Pier Bracket Installation
Heavy-duty steel brackets were securely attached to the foundation’s footing. These brackets serve as critical load-transfer points, allowing the support wall’s weight to shift from the unstable soil to the deep push piers, effectively helping to reinforce the support wall.
Step 3: Driving Push Piers into Stable Soil
Using hydraulic pressure, each push pier was driven deep into the ground until it reached a stable, load-bearing soil layer. This is a critical step in stabilization, as it anchors the wall to solid ground, preventing future settlement.
Step 4: Securing & Locking the System in Place
After testing, the push piers were permanently locked into place. This step reinforced the retaining wall by preventing future movement and ensuring structural durability.
Step 5: Backfilling & Site Restoration
With the push piers securely installed, the excavated soil was carefully replaced and compacted around the retaining wall’s base. The area was restored to its original appearance, ensuring a seamless finish with minimal disruption to the school’s landscape.
The Outcome: A Secure, Long-Lasting Retaining Wall


By reinforcing the foundation with push piers, this Frederick County Public School now has a permanently stabilized retaining wall, offering key advantages of push pier installation, including:
✅No More Settlement – The retaining wall is anchored to solid ground, eliminating the risk of further movement and preventing potential structural failure.
✅Long-Term Structural Integrity – The push pier system ensures lasting support, maintaining the wall’s stability and preventing costly future repairs or damage.
✅Minimal Disruption – The project was completed efficiently, with minimal impact on school activities, ensuring that daily operations were not interrupted.
✅Enhanced Safety – Students, staff, and visitors can safely pass the area without concerns about structural instability or hazards.
Experiencing Retaining Wall Settlement? Get Expert Help with LUX Today!
If you’re facing foundation issues or need expert guidance on how to reinforce retaining walls, LUX Foundation Solutions has the expertise to provide industry-leading and engineered solutions for stabilization.
Whether your wall has minor shifting or severe settlement, our push pier system can reinforce and secure it for decades.
Call 540-508-8587 today for a FREE estimate. Let us reinforce your foundation and provide lasting security for your property.