Injection Pier Installation for Foundation Repair in Big Sandy, TX

Injection Pier Installation is an advanced technique designed to stabilize and lift settling or sinking foundations. The process involves injecting grout or foam into the ground beneath your foundation to fill voids and reinforce the soil. Here’s a step-by-step overview of how Injection Pier Installation works:

Step 1: Inspection and Assessment

• Our first step is to conduct a thorough inspection of your foundation to assess the extent of any settlement or shifting. We look for visible signs of foundation problems, such as cracks, uneven floors, and misaligned doors or windows.
• We also use advanced tools, such as laser leveling and ground-penetrating radar (GPR), to determine the precise areas that need stabilization.
• Our team evaluates the surrounding soil conditions to identify any underlying causes of settlement, such as expansive soil, water accumulation, or poor drainage.

Step 2: Identifying the Cause of Foundation Issues

Several factors can contribute to foundation problems, and identifying the root cause is crucial for selecting the right solution. Common causes include:

• Expansive Soils: Soils that shrink and swell with moisture changes can cause foundations to shift and settle over time.
• Water Intrusion: Poor drainage or plumbing leaks can cause water to seep beneath the foundation, washing away soil and creating voids.
• Soil Erosion: Erosion due to flooding or poor landscaping can create gaps under the foundation, destabilizing the structure.
• Settlement of the Foundation: Over time, a foundation may naturally settle due to the weight of the building or underlying soil instability.

Step 3: Choosing the Right Injection Method

Once we’ve assessed the foundation and soil conditions, we choose the most appropriate injection method based on the extent of the damage and the cause of the foundation issue. There are two primary injection methods used in Injection Pier Installation:

• Polyurethane Foam Injection: This method involves injecting polyurethane foam beneath the foundation, where it expands and hardens to fill voids and stabilize the soil. Polyurethane foam is particularly effective for filling small voids and stabilizing loose or granular soil.
• Grout Injection: For larger voids or more severe settlement issues, grout injection may be used. This method involves injecting a cement-based grout into the soil to fill gaps and strengthen the foundation. The grout hardens to provide long-term support.

Step 4: Injection Process

• Once the injection material is chosen, our team uses specialized equipment to inject the material beneath your foundation through small holes drilled into the concrete slab or foundation.
• As the material is injected, it fills any voids or cavities beneath the foundation. If using polyurethane foam, the material expands to fill the gaps and create a solid, stable layer of support beneath the foundation.
• If grout is used, it is injected into the soil to fill voids and compact the surrounding earth, providing a firm base for the foundation to rest on.

Step 5: Foundation Stabilization

• As the injected material expands and hardens, it lifts and stabilizes the foundation, reducing cracks and uneven floors. In some cases, the foundation may be raised back to its original level using hydraulic jacks to ensure proper alignment.
• We monitor the lifting process closely to ensure that the foundation is lifted evenly and that no additional damage occurs during the process.

Step 6: Final Inspection and Clean-Up

• After the injection material has fully cured and the foundation is stable, we conduct a final inspection to ensure that the foundation is level and secure.
• The holes drilled for injection are sealed, and any equipment used during the process is removed. We clean up the work area, leaving your property in excellent condition.