石灰
泥浆
固结仪试验
合并(业务)
岩土工程
疏浚
堵塞
孔隙水压力
阿太堡极限
结算(财务)
材料科学
环境科学
废物管理
冶金
工程类
土壤水分
地质学
环境工程
土壤科学
含水量
海洋学
业务
会计
历史
考古
万维网
计算机科学
付款
作者
Honglei Sun,Zhenqi Weng,Sijie Liu,Xueyu Geng,Xiaodong Pan,Yuanqiang Cai,Li Shi
标识
DOI:10.1016/j.enggeo.2020.105573
摘要
Dredging slurry is treated by a combination of lime treatment and vacuum preloading. However, the mechanical characteristics and consolidation mechanics of lime-treated slurry under vacuum loading is not fully understood, making it difficult to predict slurry settlement. In this study, we develop a laboratory model of lime-treated slurry and subject it to vacuum preloading to investigate the compression and consolidation behaviors. The results demonstrate the reduction of the risk of clogging around the prefabricated vertical drains, the increase in soil permeability, and the improvement of vacuum preloading upon lime treatment. log (1 + e)-log p curves for soils with different percentages of lime content are obtained through a series of modified oedometer tests. Based on these curves, an analytical solution for lime-treated slurry settlement under vacuum preloading was derived and validated through laboratory tests. The solution can be used to predict lime-treated slurry settlement under vacuum pressure effectively.
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