An anchoring head for an anchoring rod (1, 10) for geotechnical use, the anchoring rod (1, 10) comprising a plurality of longitudinal reinforcing elements and said head comprising: - a first plate having a middle axis orthogonal to the first plate and first holes configured to be crossed each by a respective longitudinal reinforcing element of said longitudinal reinforcing elements; - a plurality of locking elements, each suitable for being coupled to a respective longitudinal reinforcing element of said longitudinal reinforcing elements and for engaging a respective part of the anchoring head to make said respective longitudinal reinforcing element integral with the anchoring head and transfer a load from said respective longitudinal reinforcing element to the anchoring head; the anchoring head being characterized in that it comprises: - a second plate which is smaller than the first plate, the second plate being arranged facing the first plate and comprising a plurality of second holes aligned with said first holes, said second holes being provided to be crossed each by a respective longitudinal reinforcing element of said longitudinal reinforcing elements; - a connection member which crosses the first plate and is connected to the second plate so as to be integral in translation with the second plate in the direction of said middle axis; and - a stop element operatively connected to the connection member; wherein said respective part of the anchoring head suitable for being engaged by a respective locking element of said locking elements is a part of the second plate, wherein the anchoring head is suitable for taking on a first configuration wherein the first and the second plate (20, 40) are spaced apart from each other by a first axial distance; wherein said connection member is suitable for being axially moved in a first direction so that the anchoring head takes on a second configuration wherein the first and the second plate (20, 40) are spaced apart from each other by a second axial distance which is smaller than said first axial distance; said stop element being suitable for engaging the first plate so as to prevent a translation of the connection member and accordingly of the second plate in a second direction opposite to said first direction. - a first plate having a middle axis orthogonal to the first plate and first holes configured to be crossed each by a respective longitudinal reinforcing element of said longitudinal reinforcing elements; - a plurality of locking elements, each suitable for being coupled to a respective longitudinal reinforcing element of said longitudinal reinforcing elements and for engaging a respective part of the anchoring head to make said respective longitudinal reinforcing element integral with the anchoring head and transfer a load from said respective longitudinal reinforcing element to the anchoring head; - a second plate which is smaller than the first plate, the second plate being arranged facing the first plate and comprising a plurality of second holes aligned with said first holes, said second holes being provided to be crossed each by a respective longitudinal reinforcing element of said longitudinal reinforcing elements; - a connection member which crosses the first plate and is connected to the second plate so as to be integral in translation with the second plate in the direction of said middle axis; and - a stop element operatively connected to the connection member; wherein said respective part of the anchoring head suitable for being engaged by a respective locking element of said locking elements is a part of the second plate, wherein the anchoring head is suitable for taking on a first configuration wherein the first and the second plate (20, 40) are spaced apart from each other by a first axial distance; wherein said connection member is suitable for being axially moved in a first direction so that the anchoring head takes on a second configuration wherein the first and the second plate (20, 40) are spaced apart from each other by a second axial distance which is smaller than said first axial distance; said stop element being suitable for engaging the first plate so as to prevent a translation of the connection member and accordingly of the second plate in a second direction opposite to said first direction. wherein said respective part of the anchoring head suitable for being engaged by a respective locking element of said locking elements is a part of the second plate, wherein the anchoring head is suitable for taking on a first configuration wherein the first and the second plate (20, 40) are spaced apart from each other by a first axial distance; wherein said connection member is suitable for being axially moved in a first direction so that the anchoring head takes on a second configuration wherein the first and the second plate (20, 40) are spaced apart from each other by a second axial distance which is smaller than said first axial distance; said stop element being suitable for engaging the first plate so as to prevent a translation of the connection member and accordingly of the second plate in a second direction opposite to said first direction.