<p><p><figure id='attachment_1410' style='max-width:428px' class='caption alignnone'><img class="wp-image-1410 size-full" src="https://www.geoinstitute.org/sites/default/files/geotech-tools-uploads/…; alt="Photograph showing the equipment used to install CSV columns next to a sheet pile wall." width="428" height="568" /><figcaption class='caption-text'> CSV installation adjacent to sheet pile wall. From the files of Jim Collin</figcaption></figure></p><p>In this technique, a seamless geotextile is inserted into the ground and filled with sand or gravel. The geotextile casing around the column provides additional lateral confinement for the column in very soft soils. Embankment loads are transferred through soft soil layers using the constructed stiff column. Advantages included low cost, high flexibility and speedy construction. This technique is applicable new embankments and widening over unstable soils.</p><p>