Effect of spatial variability on the bearing capacity of cement-treated ground
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 st...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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The Japanese Geotechnical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/91637 https://orcid.org/0000-0001-5358-4140 |
| _version_ | 1826197425363091456 |
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| author | Kasama, Kiyonobu Zen, Kouki Whittle, Andrew |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Kasama, Kiyonobu Zen, Kouki Whittle, Andrew |
| author_sort | Kasama, Kiyonobu |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T10:47:28Z |
| format | Article |
| id | mit-1721.1/91637 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:47:28Z |
| publishDate | 2014 |
| publisher | The Japanese Geotechnical Society |
| record_format | dspace |
| spelling | mit-1721.1/916372022-09-30T23:01:50Z Effect of spatial variability on the bearing capacity of cement-treated ground Kasama, Kiyonobu Zen, Kouki Whittle, Andrew Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Whittle, Andrew 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. 2014-11-20T14:27:15Z 2014-11-20T14:27:15Z 2012-09 2012-04 Article http://purl.org/eprint/type/JournalArticle 00380806 1881-1418 http://hdl.handle.net/1721.1/91637 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 https://orcid.org/0000-0001-5358-4140 en_US http://dx.doi.org/10.1016/j.sandf.2012.07.003 Soils and Foundations 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. application/pdf The Japanese Geotechnical Society Elsevier |
| spellingShingle | Kasama, Kiyonobu Zen, Kouki Whittle, Andrew Effect of spatial variability on the bearing capacity of cement-treated ground |
| title | Effect of spatial variability on the bearing capacity of cement-treated ground |
| title_full | Effect of spatial variability on the bearing capacity of cement-treated ground |
| title_fullStr | Effect of spatial variability on the bearing capacity of cement-treated ground |
| title_full_unstemmed | Effect of spatial variability on the bearing capacity of cement-treated ground |
| title_short | Effect of spatial variability on the bearing capacity of cement-treated ground |
| title_sort | effect of spatial variability on the bearing capacity of cement treated ground |
| url | http://hdl.handle.net/1721.1/91637 https://orcid.org/0000-0001-5358-4140 |
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