Evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concrete
This study focused on investigating the early-age thermal behavior of drilled shafts under different surrounding soil’s thermal properties. Four 1.8 m (6 ft) diameter drilled shafts were constructed using two different concrete mixes and two different soil conditions. A finite element (FE) model was...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2018-01-01
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| Series: | Cogent Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/23311916.2018.1468202 |
| _version_ | 1797723857097850880 |
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| author | Sangyoung Han Sanghyun Chun Kukjoo Kim Adrian M. Lawrence Mang Tia |
| author_facet | Sangyoung Han Sanghyun Chun Kukjoo Kim Adrian M. Lawrence Mang Tia |
| author_sort | Sangyoung Han |
| collection | DOAJ |
| description | This study focused on investigating the early-age thermal behavior of drilled shafts under different surrounding soil’s thermal properties. Four 1.8 m (6 ft) diameter drilled shafts were constructed using two different concrete mixes and two different soil conditions. A finite element (FE) model was developed to estimate the temperature development of drilled shafts at early-age and validated using temperatures measured from full-scale drilled shafts constructed in the field. The validated analytical model was then used to perform a parametric analysis to evaluate the effects of the surrounding soils at different moisture conditions on change in thermal behavior of drilled shafts at early-age. Results indicated that the FE model developed was capable of accurately predicting temperature development of drilled shafts at early-age. A drier surrounding soil (i.e., gravimetric moisture content of 0% through 6%) was able to serve as a better insulating material that leads to reduced temperature difference in the drilled shafts. Also, it was identified the use of high-volumefly ash concrete mix in conjunction with relatively low heat of hydration can reduce the temperature difference in the drilled shaft. |
| first_indexed | 2024-03-12T10:08:48Z |
| format | Article |
| id | doaj.art-a4b0777ab6874656a6aa92824e8dc74a |
| institution | Directory Open Access Journal |
| issn | 2331-1916 |
| language | English |
| last_indexed | 2024-03-12T10:08:48Z |
| publishDate | 2018-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Engineering |
| spelling | doaj.art-a4b0777ab6874656a6aa92824e8dc74a2023-09-02T11:03:31ZengTaylor & Francis GroupCogent Engineering2331-19162018-01-015110.1080/23311916.2018.14682021468202Evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concreteSangyoung Han0Sanghyun Chun1Kukjoo Kim2Adrian M. Lawrence3Mang Tia4University of FloridaUniversity of FloridaJoint Forces Military UniversityUniversity of FloridaUniversity of FloridaThis study focused on investigating the early-age thermal behavior of drilled shafts under different surrounding soil’s thermal properties. Four 1.8 m (6 ft) diameter drilled shafts were constructed using two different concrete mixes and two different soil conditions. A finite element (FE) model was developed to estimate the temperature development of drilled shafts at early-age and validated using temperatures measured from full-scale drilled shafts constructed in the field. The validated analytical model was then used to perform a parametric analysis to evaluate the effects of the surrounding soils at different moisture conditions on change in thermal behavior of drilled shafts at early-age. Results indicated that the FE model developed was capable of accurately predicting temperature development of drilled shafts at early-age. A drier surrounding soil (i.e., gravimetric moisture content of 0% through 6%) was able to serve as a better insulating material that leads to reduced temperature difference in the drilled shafts. Also, it was identified the use of high-volumefly ash concrete mix in conjunction with relatively low heat of hydration can reduce the temperature difference in the drilled shaft.http://dx.doi.org/10.1080/23311916.2018.1468202mass concretedrilled shaftsoil’s thermal propertiesmoisture contentmaximum temperature difference |
| spellingShingle | Sangyoung Han Sanghyun Chun Kukjoo Kim Adrian M. Lawrence Mang Tia Evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concrete Cogent Engineering mass concrete drilled shaft soil’s thermal properties moisture content maximum temperature difference |
| title | Evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concrete |
| title_full | Evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concrete |
| title_fullStr | Evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concrete |
| title_full_unstemmed | Evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concrete |
| title_short | Evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concrete |
| title_sort | evaluation of soil insulation effect on thermal behavior of drilled shafts as mass concrete |
| topic | mass concrete drilled shaft soil’s thermal properties moisture content maximum temperature difference |
| url | http://dx.doi.org/10.1080/23311916.2018.1468202 |
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