The Challenge: Worsening Cracks in a Retaining Wall on a Slope
Toby noticed small cracks forming on the 14-foot residential retaining wall that supported the sloping landscape around his home in Oakton, VA. Over time, these cracks worsened and spread to multiple sections, raising concerns about structural integrity and long-term stability.
While the wall had not yet bowed, the increasing cracks indicated mounting soil pressure that could lead to severe structural failure. Left unaddressed, this could cause:
✅ Bowing Walls & Instability – Increased pressure weakens structural integrity.
✅ Costly Emergency Repairs – Delaying repairs often leads to higher expenses or total wall failure.
✅ Safety & Property Risks – A collapsed wall could lead to land erosion, drainage issues, and foundation instability for nearby structures.
To avoid these risks, Toby contacted LUX Foundation Solutions for a professional retaining wall repair before the damage escalated.
Key Structural Issues Identified:
- Cracks in Retaining Wall: Multiple sections of the wall showed expanding cracks, a common sign of foundation movement and pressure buildup.
- Excessive Backfill Load: A 10-foot-high backfill exerted continuous pressure, increasing the likelihood of further cracking or shifting.
- Lack of Lateral Support: Without reinforcement, the wall’s structural integrity would continue to weaken, leading to costly repairs or total wall failure.
To stabilize the wall and prevent future structural damage, LUX Foundation Solutions implemented an engineered helical tieback anchor system, a reliable and cost-effective method to repair a retaining wall and stop further cracking.
The Solution: Helical Tieback Installation for Structural Support
To reinforce the cracked retaining wall and prevent further movement, LUX Foundation Solutions installed 14 helical tieback anchors at strategic depths to provide strong lateral reinforcement against soil pressure.
Step 1: Site Assessment & Utility Identification
- A comprehensive site assessment determined the severity of cracks, soil conditions, and tieback placement to repair the retaining wall.
Step 2: Drilling Holes into the Retaining Wall
- Strategically spaced small holes (5’-6” apart) were drilled into the cracked wall to accommodate the helical anchors.
- This step ensured precise placement for optimal structural support.
Step 3: Installing the Helical Tiebacks
- 14 helical screw anchors were installed at a 7-foot tieback height to counteract soil pressure and prevent further cracking.
- Each helical screw was driven at a downward angle into stable, load-bearing soil at a minimum helix distance of 12 feet.
Step 4: Extension Rod Installation
- Extension rods were connected to the helical tiebacks to reach the required minimum depth of 5’-8”, ensuring maximum support.
Step 5: Cement Sealing for Durability
- Cement was applied around the helical tiebacks to seal the drilled holes and protect against environmental exposure, further reinforcing the repair.
Step 6: Curing & Protective Covering
- To allow the cement to properly cure and harden, the treated areas were covered and left to dry for the required duration.
- This step ensures maximum strength and durability before proceeding with the final reinforcement.
Step 7: Installing Interior Plate Brackets & Tightening
- Interior plate brackets were installed and tightened to straighten the wall and prevent future shifting.
- The system was adjusted for proper wall alignment and long-term stability.
The Outcome: A Fully Stabilized, Crack-Free Retaining Wall
After the successful retaining of wall cracks through the installation of 14 helical tiebacks, Toby’s wall is now:
✅ Crack-Free & Secure – Reinforced against soil pressure and structural stress.
✅ Permanently Stabilized – Tiebacks provide long-term strength, preventing future bowing or failure.
✅ Erosion-Proof – Improved wall integrity enhances drainage and soil retention.
✅ Aesthetically Restored – The cracks are no longer expanding, and the wall maintains its original structure.
LUX Foundation Solutions provided a cost-effective, industry-leading solution using advanced helical tieback technology, guaranteeing lasting results for Toby’s retaining wall.
Strengthen Your Home with Expert Retaining Wall Repair
A strong foundation and well-built retaining wall are essential for preventing soil erosion, managing drainage, and maintaining structural integrity. Cracks, shifting, or signs of stress can indicate serious underlying issues. Addressing these problems early helps prevent costly repairs and long-term structural damage.
LUX Foundation Solutions specializes in foundation repair, ensuring long-lasting strength and protection for your home.
Don’t wait for the problem to worsen—reinforce your home’s stability today! Call us now at 540-508-8587 for a free estimate! We are serving Northern Virginia, Shenandoah Valley, North Central Virginia, West Virginia, and surrounding areas.
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