Stability analysis of a steep slope reinforced with pressure-grouted soil nails

Sungjune Lee, Yongmin Kim, Sangseom Jeong, Kwangwoo Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Soil nails have been commonly used for slope stabilization by enhancing the shear resistance of soil and the pullout resistance at the interface. In this study, a numerical model was proposed for stability analysis of a slope reinforced with pressure-grouted soil nails using the shear strength reduction method. To confirm the effect of grouting pressure on the slope stability, a series of numerical analyses were conducted. Special attention is given to the installation effect of the pressure-grouted soil nail. Results show that the pressure-grouted soil nail increases the safety factor by fifty percent in a slope by increasing the overall stiffness of the nailed slope system. It is also found that the pullout resistance of a soil nail is the main factor for stabilizing slopes rather than the shear resistance of the soil nail.

Original languageEnglish
Title of host publication11th International Conference on Geosynthetics 2018, ICG 2018
PublisherKorean Geosynthetics Society
Pages2358-2364
Number of pages7
ISBN (Electronic)9781713806080
Publication statusPublished - 2018
Event11th International Conference on Geosynthetics 2018, ICG 2018 - Seoul, Korea, Republic of
Duration: 2018 Sep 162018 Sep 21

Publication series

Name11th International Conference on Geosynthetics 2018, ICG 2018
Volume3

Conference

Conference11th International Conference on Geosynthetics 2018, ICG 2018
Country/TerritoryKorea, Republic of
CitySeoul
Period18/9/1618/9/21

Bibliographical note

Publisher Copyright:
Copyright © 11th Inter. Conf. on Geos. 2018, ICG 2018. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Environmental Engineering
  • Global and Planetary Change
  • Polymers and Plastics
  • Atmospheric Science

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