Permeation Grouting

Changing the support capability of granular soils without disturbing them

For reducing settlement

01/03

Harrisburg Airport Permeation Grouting | Harrisburg, PA

The fourth phase of work for the Cargo Apron Expansion Project at the Harrisburg International Airport included installation of two 60-inch reinforced concrete pipes that would cross beneath Runway 13-31 using microtunneling. We installed permeation grouting to reduce the potential of settlement beneath the runway during microtunneling.

For water cutoff

02/03

Arbuckle Reservoir | Wharton, TX

When a cutoff barrier beneath a new reservoir for an existing OCR Inlet/Outlet pipe was required due to permeable soils, we were contracted to perform chemical grouting utilizing acrylamide to treat the zone of concern.

03/03

For reducing settlement

01/02

Harrisburg Airport Permeation Grouting | Harrisburg, PA

For water cutoff

02/02

Arbuckle Reservoir | Wharton, TX

What is permeation grouting?

Permeation grouting introduces cement or chemical-based grout into soil pores without an essential change in the original soil volume and structure, changing the support capability of granular soils without disturbing them.

How does it work?

Permeation grouting fills voids in the soil with chemical solutions. It permeates the ground, turning it into a solid mass.

Why do you need permeation grouting?

Permeation grouting is commonly used in granular soils with fine sand content to stiffen the ground and prevent excessive movement, to lower the permeability of the soil to prevent excessive water inflows, and to underpin adjacent buildings and other facilities in advance of the tunnel excavation.