现代交通技术2024，Vol.21Issue(3)：5-12,8.
水泥稳定盾构渣土的收缩性能研究
Research on Shrinkage Properties of Cement-stabilized Shield Soils
王书灏 1王滨 1王军 1王凌威 1李卓然 2高英2
作者信息
- 1. 南京环境集团有限公司,南京 210026
- 2. 东南大学交通学院,南京 211189
- 折叠
摘要
Abstract
Aiming at the problem of the resource recycle of earth pressure balance(EPB)shield soils,the shrinkage properties of EPB shield soils were evaluated mainly through drying shrinkage tests and temperature shrinkage tests.The results suggested that the dry shrinkage coefficient of EPB shield soils changed significantly in the first 31 days,while the temperature shrink-age coefficient showed a fluctuating upward trend with the increase of temperature;the increase of cement content will not only affect the sensitivity of the volume of EPB shield soils to changes in temperature and water,but also further enhance the influ-ence of temperature on volume;compared with common cement-stabilized crushed stone,EPB shield soils lacks the embedding effect of large-sized aggregates due to the influence of the tunneling process,resulting in poor shrinkage performance.There-fore,in the construction process of EPB shield soils,not only the cement dosage should be strictly controlled,but also a lit-tle aggregate should be mixed to adjust its gradation.关键词
EPB盾构渣土/底基层/收缩性能/级配Key words
EPB shield soil/subbase/shrinkage property/gradation分类
环境科学引用本文复制引用
王书灏,王滨,王军,王凌威,李卓然,高英..水泥稳定盾构渣土的收缩性能研究[J].现代交通技术,2024,21(3):5-12,8.
