OasisLMS

Abstract: Jet grouting has been around for over 50 years. At a high-level, jet-grouting is a cross between soil mixing and grouting that utilizes a high pressure fluid stream to erode and mix the soils with grout. Jet grouting is commonly thought of as a ground improvement technique but has a wide range of application in solving geotechnical and geo-environmental problems.

What makes jet-grouting so unique and widely applicable is the highly customizable implementation. Jet grouting provides the ability to install relatively large subsurface grouted elements (commonly 1 to 3m, or even larger) combined with the flexibility associated with a small drilling rig with a small physical tooling (typically 70 to 120 mm) compared to the larger rigs and tooling used for soil mixing.

The purpose of this paper is to provide an overview of different applications of jet grouting including case study examples. The applications and case studies covered include: mass in-situ stabilization/solidification (ISS), groundwater cutoff wall installations for both environmental and hydrogeologic applications, groundwater cutoff for deep excavations, and targeted jet grouting used in conjunction with slurry trenching and auger soil mixing techniques.

Nathan Coughenour; Mr. Daniel Gregg Ruffing

Annual Conference Proceedings