One of the newest foundation repair techniques in the industry today is the hydraulic jack method. In this method, steel posts are driven deep into the ground through the unstable soil. Hydraulic jacks are utilized in order to stabilize the concrete slabs to its original position. Steel beams are used in this process since they have strong compressive strength that is ideal for this method. The steel beams act like braces that prevent the concrete slabs buried deep beneath the earth to move together with the expansive soil.