工程地质学报2026，Vol.34Issue(3)：1155-1164,10.DOI:10.13544/j.cnki.jeg.2024-0322
微生物诱导碳酸钙沉积固化粉细砂土的抗侵蚀试验研究
EXPERIMENTAL STUDY ON INTERNAL EROSION RESISTANCE OF MI-CROBIAL INDUCED CALCIUM CARBONATE DEPOSITION-CONSOLI-DATED SILTY-SAND MIXTURES
摘要
Abstract
Silty-sand mixtures,characterized by a blend of medium-coarse sand and fine particles(silt),are prevalent in various stratigraphic regions across the country.However,their poor stability and susceptibility to internal erosion pose significant challenges in engineering applications.Microbial Induced Calcium Carbonate Preci-pitation(MICP)is an innovative soil reinforcement technique that improves soil strength and reduces permeability by depositing calcium carbonate on sand particles and within pore spaces.This study investigated the anti-erosion performance of MICP-treated silty-sand mixtures through erosion tests.Key parameters,including erosion velocity and fine particle loss,were analyzed to validate the effectiveness of MICP in enhancing erosion resistance.The energy dissipation method,based on fine particle loss,was used for erosion sensitivity zoning and performance evaluation.The results indicated that the number of treatment cycles significantly influenced the erosion resistance index,followed by the cementation solution concentration,while fine particle content had a relatively minor impact.These findings provide valuable insights for mitigating natural hazards such as internal erosion in silty-sand mixtures.关键词
微生物诱导碳酸钙沉积/粉细砂土/抗渗透特性Key words
Microbial induced calcium carbonate deposition/Silty-sand mixtures/Erosion resistance index分类
建筑与水利引用本文复制引用
程马遥,陈林生,郭家仪,黄碧琦,张煜雄,杨新华,雷国平..微生物诱导碳酸钙沉积固化粉细砂土的抗侵蚀试验研究[J].工程地质学报,2026,34(3):1155-1164,10.基金项目
广东省自然科学基金项目(资助号:2023A1515011772,2020A1515111137),国家自然科学基金项目(资助号:52578467,12072120).This research is supported by the Natural Science Foundation of Guangdong Province(Grant Nos.2023A1515011772,2020A1515111137)and the National Natural Science Foundation of China(Grant Nos.52578467,12072120). （资助号:2023A1515011772,2020A1515111137）
