Advanced Geotechnical Engineering: MICP Soil Bio cementation Analysis

This report delves into the application of bio cementation, a geotechnical engineering technique leveraging microbial activities to enhance soil properties, specifically focusing on Microbially Induced Calcite Precipitation (MICP). The paper examines the MICP process, which uses bacterial metabolic pathways to produce calcite, binding soil particles and improving soil strength and stiffness. It discusses the involved components, influencing factors, and the advantages and disadvantages of MICP, including system reliability and sustainable promotion. The report evaluates the effects of factors such as bacteria concentration and cementation solution concentration on CaCO3 crystal formation. Additionally, the research highlights the current soil improvement practices, explores the impact of parameters like temperature on crystal formation and the effects of MICP on soil properties such as permeability, porosity, stiffness, and shear strength, while also touching upon the microstructure of the soil. The paper also considers the limitations of MICP and suggests areas for future research, including upscaling, in-situ implementation, and treatment optimization. The report concludes with recommendations based on the findings.