路基工程Issue(3)：50-57,8.DOI:10.13379/j.issn.1003-8825.202504034
MICP联合活性炭改良盐渍土持水特性研究
Study on the Water Retention Characteristics of Saline Soil Improved by MICP Combined with Activated Carbon
摘要
Abstract
To address the insufficient water retention capacity of saline soil in the coastal areas of North China,microbial-induced calcite precipitation(MICP)combined with activated carbon was employed for soil improvement.Through macroscopic water content tests and microscopic mechanism analysis,this study investigated the effects of varying salt content and activated carbon modification on water retention characteristics.Results show that:in the soil-water characteristic curve(SWCC),residual water content,air entry value,total suction,and matric suction all increase with rising salt content.After MICP treatment,the precipitated calcium carbonate fills pores and cemented soil particles,optimizing the pore structure and significantly enhancing water retention capacity.The MICP technique effectively improves the water retention of saline soil,providing a novel approach for enhancing the performance of vegetative slope protection.关键词
沿海地区/盐渍土/微生物诱导碳酸钙沉淀/持水能力/活性炭/盐胀/性能提升Key words
coastal areas/saline soil/MICP/water retention capacity/activated carbon/salt heave/performance improvement分类
建筑与水利引用本文复制引用
卞文霞..MICP联合活性炭改良盐渍土持水特性研究[J].路基工程,2026,(3):50-57,8.基金项目
国家自然科学基金项目(41672259) （41672259）
中国铁建技术研发项目:季冻区盐渍土路基病害机理与安全建造关键技术研究(KG913700001630559891-202221) （KG913700001630559891-202221）
