Compaction Grouting Alameda County

If you’re here looking for compaction grouting services in Alameda County, then you’ve come to the right place. Geo Grout Ground Modification Specialists Inc. has been providing compaction grouting services in Alameda County for over 33 years and counting.

Compaction grouting is a process of stabilizing the soil prior to construction. This is accomplished by drilling to a pre-determined depth below the surface and injecting a low-slump, low-mobility soil/cement grout into the ground. The grout mixture creates a pocket deep below the surface that grows as more grout is forced into the ground. As the pocket of grout expands, it compacts the soil around it, causing it to become more stable for the building. In almost all cases, several “stacked” pockets of grout are created, stabilizing the soil over a depth that will support the intended structure.

Compaction grouting is typically performed in a sequenced operation over a pre-defined grid pattern. At each location, the casing is driven or drilled to design depth and grouting is performed from the bottom up in short lifts of typically 1-2 ft until a predetermined refusal criterion (maximum pressure, maximum grout volume, or maximum structural surface settlement) is met. The grout pipe is then raised to the next stage and the process is repeated to form a grout “column”. Grout column installation in a primary/secondary /tertiary sequence displaces and thus densifies the intermediate soils.

Because compaction grouting strengthens the ground, it is used to stabilize underground structures for pipes and tunnels. It can also stop foundation settlement, increase bearing capacity of soils, and treat sites with sinkhole activity.

Compaction grouting can be applied to the following subsurface conditions.

• Sinking or settling structures

• Voids

• Sinkholes

• Loose or weak soils

• Poorly compact fills

• Collapsible soils

• Above or below water tables

• Constricted areas

Compaction Grouting can control the settlement of foundations on existing homes; stabilize subsoils that are determined to be weak before beginning construction on a new home or structure, and lifting existing foundations that have settled.

• Rapid installation

• No spoil generation

• Can be accomplished in restricted access situations

• Structural foundation connections not required

• Low mobility grout rheology allows for precisely controlled placement

• To increase bearing capacity

• To arrest or reduce foundation settlements

• Mitigation of liquefaction potential

• Sinkhole remediation

• Stabilization of karstic formations

• Not appropriate for low permeability soils (i.e., clays).

• Not suitable in zones where limited soil cover can result in unacceptable heave.

Contact the experts at Geo Grout Ground Modification Specialists Inc. of Western United States for all of your compaction grouting needs. Call us at (650) 241-2400 for more detailed information on our services or email us directly at inquiries@gggms.com to discuss your Compaction Grouting needs today.