Research Progress of Slope Stability based on Microbial Reinforcement
DOI:
https://doi.org/10.6919/ICJE.202410_10(10).0008Keywords:
Microorganisms; Reinforcement Mechanism of Soil Slope; Factors Affecting Solidification; Slope Stability; Ambient Temperature.Abstract
Microbial-induced calcium carbonate deposition (MICP), as a new slope reinforcement technology. The mechanism of this technology is to use the metabolic activity of microorganisms to generate CaCO3 precipitation, which can change the physical and chemical properties of sole. This article systematically summarizes the impact of five key factors on the reinforcement effect to slope and draws the following conclusions. The difference in soil slope environment will produce different reinforcement effects; The activity of microorganisms is higher in the range of 3~45°C; The PH value in the range of 8~9 is conducive to the formation of calcium carbonate; The grouting method mainly affects the distribution of calcium carbonate in the soil slope; With the increase of bacterial solution concentration, the bacterial activity is increased, soil slope reinforcement effect is better.
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