A simple mathematical model for soil nail and soil interaction analysis

✍ Scribed by Wan-Huan Zhou; Jian-Hua Yin

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 297 KB
• Volume: 35
• Category: Article
• ISSN: 0266-352X
• DOI: 10.1016/j.compgeo.2007.07.001

✦ Synopsis

Soil nails have been widely used to stabilize slopes and earth retaining structures in many countries and regions, especially, in Hong Kong. The analysis of the interaction between a soil nail and the surrounding soil is of great interests to both design engineers and researchers. In this paper, authors present a simple mathematical model for the interaction analysis of a soil nail and the surrounding soil considering a few key factors which are soil dilation, bending of the soil nail, vertical pressure, and non-linear subgrade reaction stiffness. The lateral subgrade reaction between the soil and the soil nail is assumed to obey a hyperbolic relation. Reported test data in the literature are used to verify the present model. The contributions of the soil-nail bending on the pull-out resistance are evaluated in two case studies.