Study of Stress-Strain Behaviour in Soil Nail Wall Using Flexible Facing

Abstract

Soil nailing is a process used to strengthen the existing fill of soil. It is a cost-effective way to reinforce soil. A number of steel bars are put up into a slope during the top-down excavation. The excavation support is a very effective as well as economical way to build a retention wall to support hilltop, bridge abutments and highways. In this research, a physical model was prepared for performing experiments on various flexible materials. The nail arrangement used was of rectangular pattern consisting of six nails. The flexible materials used in the research were Jute gunny bag, bamboo fibre, and Drainage geo net. In the present study behaviour of stress and strain was studied so as to find the material suitable for flexible facing. In the present study it was found that among the three materials Bamboo fibre was able to absorb maximum stresses before its failure.