Is soil spatial variability the most important source of uncertainty in geotechnical design?

Y. Honjo; Y. Otake

doi:10.1201/b17435-224

Is soil spatial variability the most important source of uncertainty in geotechnical design?

Y. Honjo, Y. Otake

ENG - Civil and Environmental Engineering

Gifu University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The authors have been proposing a Reliability Based Design (RBD) scheme for practicing geotechnical engineers that is termed GRASP (Geotechnical Reliability Analysis by a Simplified Procedure). In the sister paper submitted to this conference by the same authors, a simplified method to evaluate the effects of soil spatial variability on the performance of the geotechnical structures is proposed. The method is based on the LA (local average) over the geotechnically appropriate volume. By focusing on the LA, it is possible to establish a clear-cut statistical estimation theory which gives the bases for evaluating statistical estimation error. In this paper, the outline of GRASP is summarized in the first half of this paper with emphasis on the way to evaluate the statistical estimation error. The latter half of the paper is devoted to the consideration on the major uncertainty sources in geotechnical design based on results of analyses by GRASP on various typical geotechnical structures, such as piles, shallow foundations and embankments on soft ground.

Original language	English
Title of host publication	Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
Publisher	Taylor and Francis - Balkema
Pages	1271-1276
Number of pages	6
ISBN (Print)	9781138001480
DOIs	https://doi.org/10.1201/b17435-224
Publication status	Published - 2015
Event	14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 - Kyoto, Japan Duration: 2014 Sept 22 → 2014 Sept 25

Publication series

Name	Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014

Conference

Conference	14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014
Country/Territory	Japan
City	Kyoto
Period	14/9/22 → 14/9/25

Access to Document

10.1201/b17435-224

Cite this

Honjo, Y., & Otake, Y. (2015). Is soil spatial variability the most important source of uncertainty in geotechnical design? In Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 (pp. 1271-1276). (Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014). Taylor and Francis - Balkema. https://doi.org/10.1201/b17435-224

Honjo, Y. ; Otake, Y. / Is soil spatial variability the most important source of uncertainty in geotechnical design?. Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014. Taylor and Francis - Balkema, 2015. pp. 1271-1276 (Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014).

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title = "Is soil spatial variability the most important source of uncertainty in geotechnical design?",

abstract = "The authors have been proposing a Reliability Based Design (RBD) scheme for practicing geotechnical engineers that is termed GRASP (Geotechnical Reliability Analysis by a Simplified Procedure). In the sister paper submitted to this conference by the same authors, a simplified method to evaluate the effects of soil spatial variability on the performance of the geotechnical structures is proposed. The method is based on the LA (local average) over the geotechnically appropriate volume. By focusing on the LA, it is possible to establish a clear-cut statistical estimation theory which gives the bases for evaluating statistical estimation error. In this paper, the outline of GRASP is summarized in the first half of this paper with emphasis on the way to evaluate the statistical estimation error. The latter half of the paper is devoted to the consideration on the major uncertainty sources in geotechnical design based on results of analyses by GRASP on various typical geotechnical structures, such as piles, shallow foundations and embankments on soft ground.",

author = "Y. Honjo and Y. Otake",

year = "2015",

doi = "10.1201/b17435-224",

language = "English",

isbn = "9781138001480",

series = "Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014",

publisher = "Taylor and Francis - Balkema",

pages = "1271--1276",

booktitle = "Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014",

note = "14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 ; Conference date: 22-09-2014 Through 25-09-2014",

}

Honjo, Y & Otake, Y 2015, Is soil spatial variability the most important source of uncertainty in geotechnical design? in Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014. Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014, Taylor and Francis - Balkema, pp. 1271-1276, 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014, Kyoto, Japan, 14/9/22. https://doi.org/10.1201/b17435-224

Is soil spatial variability the most important source of uncertainty in geotechnical design? / Honjo, Y.; Otake, Y.
Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014. Taylor and Francis - Balkema, 2015. p. 1271-1276 (Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review