Review on biological process of soil improvement in the mitigation of liquefaction in sandy soil
Recently, the concept of using biological process in soil improvement otherwise called bio-mediated soil improvement technique has shown greater prospects in the mitigation of liquefiable soils. It is an environmental friendly technique that has generated great interest to geotechnical engineers. Th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201825001017 |
| _version_ | 1818445353432645632 |
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| author | Muhammed Abubakar Sadiq Kassim Khairul Anuar Uba Zango Muttaqa |
| author_facet | Muhammed Abubakar Sadiq Kassim Khairul Anuar Uba Zango Muttaqa |
| author_sort | Muhammed Abubakar Sadiq |
| collection | DOAJ |
| description | Recently, the concept of using biological process in soil improvement otherwise called bio-mediated soil improvement technique has shown greater prospects in the mitigation of liquefiable soils. It is an environmental friendly technique that has generated great interest to geotechnical engineers. This paper presents a review on the microorganism responsible for the biological processes in soil improvement system, factors that affect biological process, identifying the mechanism of liquefaction and commonly adopted method to mitigate liquefaction. Next, the effect of microbial induced calcite precipitation (MICP) on the strength and cyclic response were also analyzed, where it was identified that higher cementation level leads to formation of larger sized calcite crystals which in turn leads to the improved shear strength, stiffness and cyclic resistance ratio of the soil. However, the effects of various bacteria, cementation reagent concentrations amongst other factors were not fully explored in most of the studies. Finally, some of the challenges that lay ahead for the emerging technology are optimizing treatment factors (bacteria and cementation reagent concentration), upscaling process, training of researchers/technologist and long – time durability of the improved soils. |
| first_indexed | 2024-12-14T19:30:29Z |
| format | Article |
| id | doaj.art-1c0fef323dc2477e852b10864f7edb49 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-14T19:30:29Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-1c0fef323dc2477e852b10864f7edb492022-12-21T22:50:05ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-012500101710.1051/matecconf/201825001017matecconf_sepka-iseed2018_01017Review on biological process of soil improvement in the mitigation of liquefaction in sandy soilMuhammed Abubakar SadiqKassim Khairul Anuar0Uba Zango MuttaqaFaculty of Civil Engineering, Universiti Teknologi MalaysiaRecently, the concept of using biological process in soil improvement otherwise called bio-mediated soil improvement technique has shown greater prospects in the mitigation of liquefiable soils. It is an environmental friendly technique that has generated great interest to geotechnical engineers. This paper presents a review on the microorganism responsible for the biological processes in soil improvement system, factors that affect biological process, identifying the mechanism of liquefaction and commonly adopted method to mitigate liquefaction. Next, the effect of microbial induced calcite precipitation (MICP) on the strength and cyclic response were also analyzed, where it was identified that higher cementation level leads to formation of larger sized calcite crystals which in turn leads to the improved shear strength, stiffness and cyclic resistance ratio of the soil. However, the effects of various bacteria, cementation reagent concentrations amongst other factors were not fully explored in most of the studies. Finally, some of the challenges that lay ahead for the emerging technology are optimizing treatment factors (bacteria and cementation reagent concentration), upscaling process, training of researchers/technologist and long – time durability of the improved soils.https://doi.org/10.1051/matecconf/201825001017 |
| spellingShingle | Muhammed Abubakar Sadiq Kassim Khairul Anuar Uba Zango Muttaqa Review on biological process of soil improvement in the mitigation of liquefaction in sandy soil MATEC Web of Conferences |
| title | Review on biological process of soil improvement in the mitigation of liquefaction in sandy soil |
| title_full | Review on biological process of soil improvement in the mitigation of liquefaction in sandy soil |
| title_fullStr | Review on biological process of soil improvement in the mitigation of liquefaction in sandy soil |
| title_full_unstemmed | Review on biological process of soil improvement in the mitigation of liquefaction in sandy soil |
| title_short | Review on biological process of soil improvement in the mitigation of liquefaction in sandy soil |
| title_sort | review on biological process of soil improvement in the mitigation of liquefaction in sandy soil |
| url | https://doi.org/10.1051/matecconf/201825001017 |
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