Soil reinforcement based on bio-geo-chemical processes: from laboratory insights to field applications




Soil reinforcement based on bio-geo-chemical processes: from laboratory insights to field applications


Addressing the pressing need for sustainable and efficient engineering solutions as an alternative to traditional chemical synthesis, this paper highlights the emergence of bio-geotechnical engineering, specifically focusing on Microbially Induced Calcite Precipitation (MICP). MICP presents itself as a promising and sustainable approach to soil stabilization, mitigating environmental concerns linked with cement-based products. Through harnessing microorganisms present in soil and groundwater, MICP not only enhances soil mechanical properties but also contributes to geohazard mitigation. This comprehensive paper spans MICP studies, ranging from microscopic characterizations to lab-scale testing and large-scale applications, showcasing its adaptability and versatility. It delves into the bio-chemo-mechanical principles of MICP, emphasizing the increasing interest and expanding research within the field. The discussion extends to advancements in modeling tools, crucial for evaluating and optimizing MICP processes. These innovations play a pivotal role in bridging the gap between theoretical research and practical applications, guiding the design of MICP for real-world scenarios. Furthermore, the paper stresses the necessity of shifting focus towards MICP application at natural sites, highlighting its potential to become a standard in sustainable geotechnical engineering. The call for more attention to practical implementations reinforces the paper's contribution to advancing MICP as a viable and eco-friendly alternative in the field.

Lyesse Laloui; Dimitrios Terzis; Ray Harran; J. Bosch; A. Elmaloglou; S. Ten Bosch; M. Buyuklu; Z. N. Sahlab


18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)



Keynote