河南城建学院学报2024，Vol.33Issue(4)：10-18,9.DOI:10.14140/j.cnki.hncjxb.2024.04.002
游离氧化铁对花岗岩残积土崩解和抗剪强度的影响
Effect of free iron oxide on disintegration and shear strength of granite residual soil
摘要
Abstract
To analyze the effect of free iron oxide on the physical and mechanical properties of granite residual soil,the granite residual soil in southeast Guangxi was taken as the research object.The free iron oxide in gran-ite residual soil was removed by sodium dithionite-sodium citrate-sodium bicarbonate(DCB)solution,and the remodeled soil samples with different free iron oxide contents were prepared.The results show that the shear strength of granite residual soils is significantly improved with the increase of free iron oxide content,while the water stability and anti-disintegration properties are significantly reduced.Based on the experimental results,the fitted relationship between free iron oxide content,disintegration characteristics and shear strength is estab-lished,which effectively reflects the changing trend of soil properties with free iron oxide content.关键词
花岗岩残积土/游离氧化铁/崩解特性/抗剪强度/SEM/DCB法Key words
granite residual soil/free iron oxide/disintegration characteristics/shear strength/SEM/DCB method分类
建筑与水利引用本文复制引用
马高峰,邹伟林,马亚鑫,王志兵..游离氧化铁对花岗岩残积土崩解和抗剪强度的影响[J].河南城建学院学报,2024,33(4):10-18,9.基金项目
国家自然科学基金(42167021) （42167021）
