Laboratory Device to Test the Pull-Out Behavior of Soil Nails

This paper's goal is to examine a number of factors that affect the soil nail performance and to find quantitative interface parameters. Laboratory pull out tests of grouted nail in completely decomposed granite (CDG) soil have been conducted to investigate the shear strength behavior of the soil nails and surrounding soil. The following influences on the interface shear strength are investigated in the laboratory pull out tests: Influence of different applied stress levels of 50, 100, and 300 kPa; influence of soil degree of saturation on pull out shear strength; and influence of surface roughness of the soil nails with a regular or irregular nail surface. From the experimental results, empirical equations are established to correlate the interface shear strength with the major influencing factors.


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  • Accession Number: 01004225
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 28 2005 10:15AM