Stability Analysis of Slope under Different Soil Nailing Parameters Based on the GeoStudio

Authors

  • Ou-Ling Tang Chengdu University of Technology, Chengdu, China
  • Qing-Ming Jiang Chengdu University of Technology, Chengdu, China

DOI:

https://doi.org/10.15273/ijge.2015.02.010

Keywords:

soil nailing, retaining parameter, safety factor, Morgenstern-Price method

Abstract

In order to investigate the influence of different soil nailing parameters on the safety factor of a slope, the slope stability is analyzed by the GeoStudio software with different analysis methods. Soil nailing parameters (such as nail inclination, nail horizontal space, nail diameter and length) that influence the slope stability are analyzed by the Morgenstern-Price method. As the results show, the slope has the highest safety factor when the obliquity of soil nailing is about 15°, the safety factor decreases with the increase of soil-nail horizontal space with an evident acceptable space range of 2 m or less and increases linearly with the increase of soil-nail diameter and length. However when the soil-nail length equals approximately the height of the slope, the safety factor increases slowly. These results can provide a design base for field engineers.

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Published

2015-07-20

Issue

Section

Technical Notes