Grouting methods are used to consolidate, waterproof, backfill or constipate cracks or cavities, to avoid floods, to improve mechanical soil conditions and are performed filling the holes with grout mixings or other mixings. Quantity and pressure of the grouting is determined by soil conditions. Groutings are generally listed according to: kind of grout used; quantity of grout used; injection pressure; injection method; diameter and depth of the drilling; technical characteristics of pipes.