Compaction Grouting

Displaces and compacts soils

For ground improvement

01/03

Paradise Whitney Interceptor | Las Vegas, NV

A new sewer interceptor was designed in Las Vegas to intercept flows from existing sewers along its route and connect a previously disparate system. We were contracted to perform compaction grouting as a targeted treatment at the tunnel shafts to improve break in/break outs.

For seepage mitigation

02/03

Boone Dam | Kingsport, TN

To limit reservoir seepage underneath Tennessee’s Boone Dam, The deterioration of a cutoff trench that was created during the construction of Tennessee’s Boone Dam required a grout curtain to mitigate seepage flows. We performed both low mobility and high mobility grouting to construct the grout curtain.

03/03

For ground improvement

01/02

Paradise Whitney Interceptor | Las Vegas, NV

For seepage mitigation

02/02

Boone Dam | Kingsport, TN

What is compaction grouting?

Compaction grouting involves injecting a very stiff homogeneous grout mix under relatively high-pressures and at low injection rates to subsurface locations in pre-designed patterns in order to displace and compact soils.

How does it work?

The injected grout pushes the soils to the side as it forms a grout column or bulb. The soil becomes increasingly dense as water and/or air are forced out and soil particles are rearranged. Grout injections can be continued until grout forces overcome overburden or containment pressures and heave occurs.

Why do you need compaction grouting?

Compaction grouting can improve soft and compactable soils, stabilize or re-level existing structures, stabilize existing underground structures such as pipes and tunnels, reduce water seepage and mitigate settlement.