Effect of spatial variability on the bearing capacity of cement-treated ground
Author(s)
Kasama, Kiyonobu; Zen, Kouki; Whittle, Andrew
DownloadKasama-2012-Effect of spatial va.pdf (1.525Mb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Terms of use
Metadata
Show full item recordAbstract
This paper presents a reliability assessment for the undrained bearing capacity of a surface strip foundation based on the results of a probabilistic study in which the shear strength and unit weight of cement-treated ground are represented as random fields in Monte Carlo simulations of undrained stability using numerical limit analyses. The results show how the bearing capacity is related to the coefficient of variation and correlation length scale in both shear strength and unit weight. Based on the results, the authors propose an overdesign factor, tolerable percentage of defective core specimens, and resistance factors for LRFD ultimate limit state of surface footings on cement-treated ground in order to achieve a target reliability index and probability of failure. The proposed method is illustrated through example calculations based on the spatial variation of unconfined compressive strength measured using a variety of cement-mixing methods from projects in Japan.
Date issued
2012-09Department
Massachusetts Institute of Technology. Department of Civil and Environmental EngineeringJournal
Soils and Foundations
Publisher
The Japanese Geotechnical Society
Citation
Kasama, Kiyonobu, Andrew J. Whittle, and Kouki Zen. “Effect of Spatial Variability on the Bearing Capacity of Cement-Treated Ground.” Soils and Foundations 52, no. 4 (August 2012): 600–619. © 2012 The Japanese Geotechnical Society
Version: Final published version
ISSN
00380806
1881-1418