Seismic Behaviour of Soil Nailed Wall

Abstract

Soil nailing is a technique used to stabilise steep cut slopes and to retain excavations. The method consists of inserting nail bars into the ground either by drilling or by grouting. The present study evaluates the seismic behaviour of a soil nailed wall supporting a vertical cut of height 6 m. The finite element analysis has been carried out to study the stability and performance of the soil nailed wall using ANSYS software. The seismic resistance of the wall is analysed under the El-Centro ground motion. The seismic response variation for different parameters such as angle of inclination of nails and soil strength properties are studied. The maximum lateral displacements and acceleration response of soil nailed wall are evaluated under static as well as dynamic conditions. The results of the study indicate that soil nailed system imparts stability to the retaining system under dynamic conditions. © 2021, Springer Nature Singapore Pte Ltd.