Geological Journal of China Universities >
Properties of Runoff and Erosion on Silt Slope Surface Reinforced by Microbial Induced Mineralization
Online published: 2022-01-07
slope was negatively correlated with penetration strength of the reinforced crust on slope (R2=0.822), linearly correlated with
runoff shear stress (R2=0.912). The critical runoff shear stress of reinforced silt slope was 0.5Pa. For silt slopes with a gradient of
10-25°, the detachment rate could be reduced from 58.2-118.4 g/(m2s) to 2.4-21.2 g/(m2s) by microbial reinforcement, and the
maximum detachment rate could be reduced by 95.0%. The hydrodynamic parameters of silt slope were significantly changed due
to the microbial-induced mineralization reinforcement. Furthermore, the runoff characteristics were related to the hydrodynamic
parameters, the reinforced crust properties and slope gradient. The microbial-induced mineralization reinforcement effectively
improved the anti-erosion performance of the silt slope.
SHAO Guanghui, YANG Zhi, TANG Biao, LIU Peng, HUANG Rongpin, ZHAO Zhifeng . Properties of Runoff and Erosion on Silt Slope Surface Reinforced by Microbial Induced Mineralization[J]. Geological Journal of China Universities, 2021 , 27(6) : 707 -715 . DOI: 10.16108/j.issn1006-7493.2020111
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