8.3.2 Soil Nailing Soil nailing-Using "nail"to reinforce the earth. This consists in either driving small-diameter rods (on the order of 25 to 30mm)into the earth or drilling holes on the order of 150 to 200mm, inserting the required diameter rod,and filling the remainder of the hole with grout. Soil nailing has advantage of being suitable both for walls and for excavation support. 8.3.2 Soil Nailing ❖ Soil nailing-Using “nail” to reinforce the earth. ❖ This consists in either driving small-diameter rods (on the order of 25 to 30mm) into the earth or drilling holes on the order of 150 to 200mm, inserting the required diameter rod, and filling the remainder of the hole with grout. ❖ Soil nailing has advantage of being suitable both for walls and for excavation support