Controlled Modulus Columns
Controlled Modulus Columns (CMC®) are high modulus, rigid inclusions in the soil for the purpose of enhancing the global modulus of incompetent soil. CMC®are installed in a grid pattern to accommodate the imposition of large dead or live loads and contain settlements within acceptable limits.
Stone Columns
Stone Columns are semi rigid inclusions, generally used in soft cohesive soils. The columns are formed by the introduction, of a vibrating poker into the ground, whereby the poker is used to create the void in the ground into which stone backfill is introduced. The construction of the columns is achieved by the gradual introduction of the stone, progressing from the base of the column to the ground surface with the vibrating poker being used to compact the stone as the column is formed.
