Stability of Slope Using Soil Nailing Technique

Abstract

Soil nailing has emerged as an effective technique of ground reinforcement for improving the engineering properties of the soil. It has emerged as a cheaper technique for stabilizing the steep slopes. Such techniques like soil nailing and dowelling, have received tremendous development over the last 25 years. The project report presents a study on the stability of slopes by using soil nails. In this project report, an attempt has been made to study the soil nailing technique and carrying out the technique in the laboratory by preparing slope models with slope angles of 45o and 60o. Unreinforced and reinforced slope models have been prepared with the sand and tested under UTM for increasing surcharge. Load vs settlement behavior, failure patterns and nail forces along the nails have been studied under the surcharge loading. It is observed that reinforced slopes have nails have higher load carrying capacity than unreinforced slopes. Moreover, a deep surface failure is obserbed for the slopes. The lower nails are found to bear more forces.