Reliability assessment of cement-mixed ground bearing capacity considering spatial variability

Kiyonobu Kasama, Kouki Zen

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Cement-mixing method is gaining popularity as a method for stabilizing soft soils in applications ranging from the improvement of foundation properties to mitigation of liquefaction. However, spatial variability in the shear strength of the cement-mixed ground introduces uncertainties in estimating the bearing capacity for design. This paper presents a reliability assessment for the bearing capacity of cement-mixed ground based on the results of a probabilistic study in which the shear strength of the cement-mixed ground is represented as a random field in Monte Carlo simulations of undrained stability for a surface foundation using numerical limit analyses. The results show how the bearing capacity is related to the coefficient of variation and correlation length scale in the shear strength of cement-mixed ground. Finally, the reduction of bearing capacity due to spatial variability of shear strength in cement-mixed ground is evaluated based on the result of the application to construction sites by cement-mixing in Japan in terms of probabilistic point of view. Copyright ASCE 2009.

本文言語英語
ホスト出版物のタイトルContemporary Topics in In Situ Testing, Analysis, and Reliability of Foundations - Proceedings of Selected Sessions of the 2009 International Foundation Congress and Equipment Expo
ページ356-363
ページ数8
186
DOI
出版ステータス出版済み - 9 14 2009
イベントContemporary Topics in In Situ Testing, Analysis, and Reliability of Foundations - 2009 International Foundation Congress and Equipment Expo - Orlando, FL, 米国
継続期間: 3 15 20093 19 2009

出版物シリーズ

名前Geotechnical Special Publication
番号186
ISSN(印刷版)0895-0563

その他

その他Contemporary Topics in In Situ Testing, Analysis, and Reliability of Foundations - 2009 International Foundation Congress and Equipment Expo
Country米国
CityOrlando, FL
Period3/15/093/19/09

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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