A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shear Strength Characteristics of Bio-Cemented Soil-Steel Interface
This study investigates the capability of the microbially induced calcite precipitation (MICP) method to enhance the shear strength parameters of soil-steel interfaces. A set of modified direct shear tests, designed based on the Taguchi design of experiments method, are conducted on poorly-graded loose sand samples, which are bio-treated and prepared against a rough steel surface. Data analysis is performed using the analysis of means (ANOM). The direct shear tests show that introducing the bio-cementation process effectively improves the interface properties, leading to a significant increase in the shear strength of the sand-steel interface. Scanning electron microscopy (SEM) analyses of the bio-treated samples demonstrate the successful precipitation of calcium carbonate between the soil particles and the interface. Moreover, this research introduces a cost-effective approach by utilizing a novel culture medium for the bacteria, incorporating waste materials. These findings contribute to the advancement of the MICP method for improving soil-structure interfaces, offering potential benefits for large-scale geotechnical engineering projects.
Shear Strength Characteristics of Bio-Cemented Soil-Steel Interface
This study investigates the capability of the microbially induced calcite precipitation (MICP) method to enhance the shear strength parameters of soil-steel interfaces. A set of modified direct shear tests, designed based on the Taguchi design of experiments method, are conducted on poorly-graded loose sand samples, which are bio-treated and prepared against a rough steel surface. Data analysis is performed using the analysis of means (ANOM). The direct shear tests show that introducing the bio-cementation process effectively improves the interface properties, leading to a significant increase in the shear strength of the sand-steel interface. Scanning electron microscopy (SEM) analyses of the bio-treated samples demonstrate the successful precipitation of calcium carbonate between the soil particles and the interface. Moreover, this research introduces a cost-effective approach by utilizing a novel culture medium for the bacteria, incorporating waste materials. These findings contribute to the advancement of the MICP method for improving soil-structure interfaces, offering potential benefits for large-scale geotechnical engineering projects.
Shear Strength Characteristics of Bio-Cemented Soil-Steel Interface
Lecture Notes in Civil Engineering
Rujikiatkamjorn, Cholachat (editor) / Xue, Jianfeng (editor) / Indraratna, Buddhima (editor) / Mortazavi Bak, Hamid (author) / Khoshghalb, Arman (author) / Shahbodagh, Babak (author) / Kariminiya, Tahereh (author)
International Conference on Transportation Geotechnics ; 2024 ; Sydney, NSW, Australia
2024-10-25
9 pages
Article/Chapter (Book)
Electronic Resource
English
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