Soil nailing is a technique used to bring soil stability in areas where landslides might be a problem. Soil Nailing can prevent landslides by inserting steel reinforcement bars into the soil and anchoring them to the soil strata. It is called Soil Nailing, because it’s like having a nail being hammered into the soil, where the nails, are the steel bars.
Its construction process is faster than other similar methods. The construction procedure starts, drilling into the soil, where the nail (steel bar) is going to be placed. After the drilling has been completed, exact depth must be provided by the geotechnical engineer, the nail must be inserted into the drilled hole. Then, it must be grouted into the soil to create a structure similar to a gravity wall. After placing the nail, a shot-Crete layer is usually placed as a facing material, to protect the exposed nail, and then other architectural options are placed over the shot-Crete, creating an aesthetic finish to the project.
Soil Nailing is not recommended to use on clayey soils, and or clean sands where the cohesion of the soil is minimum.