Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Herausgeber:in) / Xue, Jianfeng (Herausgeber:in) / Indraratna, Buddhima (Herausgeber:in) / Mortazavi Bak, Hamid (Autor:in) / Khoshghalb, Arman (Autor:in) / Shahbodagh, Babak (Autor:in) / Kariminiya, Tahereh (Autor:in)
International Conference on Transportation Geotechnics ; 2024 ; Sydney, NSW, Australia
25.10.2024
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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