Lateral responses of a model pile in biocemented sand
This technical note aims to investigate the effects of biotreatment on the response of a concrete model pile embedded in poorly graded sand through lateral loading tests. The bending moment profiles along pile length were obtained from strain gauges collected during the pile load tests. The pile def...
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sg-ntu-dr.10356-1603272022-07-19T06:07:08Z Lateral responses of a model pile in biocemented sand Xiao, Yang Stuedlein, Armin W. He, Xiang Han, Fei Evans, T. Matthew Pan, Zhengyu Lin, Hai Chu, Jian van Paassen, Leon School of Civil and Environmental Engineering Engineering::Civil engineering Ground Improvement Soil This technical note aims to investigate the effects of biotreatment on the response of a concrete model pile embedded in poorly graded sand through lateral loading tests. The bending moment profiles along pile length were obtained from strain gauges collected during the pile load tests. The pile deflection and soil resistance were derived from a bending moment profile based on beam theory. The ultimate lateral resistance of the pile with biotreatment was 2.6 times as large as that without biotreatment. The bending moment for the pile in biotreated soil is significantly smaller than that for the pile in untreated soil due to the reduction in curvature. The spatial distribution of calcium carbonate generated during the biotreatment was obtained from 1,800 sand samples, which was also validated by the scanning electron microscope images. Biotreatment of sand surrounding a pile is demonstrated to be a promising measure to effectively improve the lateral capacity of the pile. The authors would like to acknowledge the financial support from the National Science Foundation of China (Grant Nos. 41831282, 51922024, and 52078085). Dr. T. Matthew Evans was supported by the US National Science Foundation (Grant No. CMMI-1933355) during this work. 2022-07-19T06:07:07Z 2022-07-19T06:07:07Z 2021 Journal Article Xiao, Y., Stuedlein, A. W., He, X., Han, F., Evans, T. M., Pan, Z., Lin, H., Chu, J. & van Paassen, L. (2021). Lateral responses of a model pile in biocemented sand. International Journal of Geomechanics, 21(11), 06021027-. https://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0002179 1532-3641 https://hdl.handle.net/10356/160327 10.1061/(ASCE)GM.1943-5622.0002179 2-s2.0-85113905724 11 21 06021027 en International Journal of Geomechanics © 2021 American Society of Civil Engineers. All rights reserved. |
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Engineering::Civil engineering Ground Improvement Soil Xiao, Yang Stuedlein, Armin W. He, Xiang Han, Fei Evans, T. Matthew Pan, Zhengyu Lin, Hai Chu, Jian van Paassen, Leon Lateral responses of a model pile in biocemented sand |
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This technical note aims to investigate the effects of biotreatment on the response of a concrete model pile embedded in poorly graded sand through lateral loading tests. The bending moment profiles along pile length were obtained from strain gauges collected during the pile load tests. The pile deflection and soil resistance were derived from a bending moment profile based on beam theory. The ultimate lateral resistance of the pile with biotreatment was 2.6 times as large as that without biotreatment. The bending moment for the pile in biotreated soil is significantly smaller than that for the pile in untreated soil due to the reduction in curvature. The spatial distribution of calcium carbonate generated during the biotreatment was obtained from 1,800 sand samples, which was also validated by the scanning electron microscope images. Biotreatment of sand surrounding a pile is demonstrated to be a promising measure to effectively improve the lateral capacity of the pile. |
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School of Civil and Environmental Engineering |
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School of Civil and Environmental Engineering Xiao, Yang Stuedlein, Armin W. He, Xiang Han, Fei Evans, T. Matthew Pan, Zhengyu Lin, Hai Chu, Jian van Paassen, Leon |
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Article |
author |
Xiao, Yang Stuedlein, Armin W. He, Xiang Han, Fei Evans, T. Matthew Pan, Zhengyu Lin, Hai Chu, Jian van Paassen, Leon |
author_sort |
Xiao, Yang |
title |
Lateral responses of a model pile in biocemented sand |
title_short |
Lateral responses of a model pile in biocemented sand |
title_full |
Lateral responses of a model pile in biocemented sand |
title_fullStr |
Lateral responses of a model pile in biocemented sand |
title_full_unstemmed |
Lateral responses of a model pile in biocemented sand |
title_sort |
lateral responses of a model pile in biocemented sand |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/160327 |
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1739837366881746944 |