Controlled Modulus Column

Ground treatment method invented by Menard to install using a special designed displacement auger, powered by equipment with large torque capacity and high static down thrust to displace the soil laterally with virtually no spoil and vibration during penetration. The auger is pushed into the ground to the required depth while increasing the density of surrounding soils. Cement mixture is then injected under pressure to form the CMC, which is also known as rigid or semi-rigid inclusion. The result is a composite of soil-CMC acting as a homogeneous structure with enhanced bearing capacity. CMC can be applied to various soil conditions. This technology works well in loose sandy soils, soft loams, organic and anthropogenic soils (i.e., uncompacted fills, soil heaps, peats, clays). All types of enclosed buildings, infrastructure and special structures are well suited for the CMC technology. The length of the CMCs depends on the loading and allowable settlements, which corresponds to the length of the anchorage in load bearing soils. Depending on the load per column, the diameter between 25 cm to 60 cm and spacing varies between 1.2 m to 3.6 m are adjusted accordingly.