合并(业务)
压缩性
岩土工程
孔隙水压力
孔隙比
机械
非线性系统
磁导率
材料科学
地质学
物理
化学
会计
业务
膜
量子力学
生物化学
作者
Sijie Liu,Xueyu Geng,Honglei Sun,Yuanqiang Cai,Xiaodong Pan,Li Shi
摘要
Summary The system of vacuum pressure combined with vertical drains to accelerate soil consolidation is one of the most effective ground improvement methods. The consolidation theories of soft soil improved by vertical drains including void ratio–dependent compressibility and permeability have been widely applied in practice to predict the consolidation behavior. In this paper, analytical solutions of the consolidation of vertical drains are derived incorporating the loss and propagating stage of vacuum pressure. In addition, special solutions are obtained for the cases of instantaneous surcharge loading and staged surcharge loading, based on the general solution. The solution is verified by ignoring the propagating stage of vacuum pressure formation and comparing it with an existing solution. The effects of vacuum pressure loss and propagating stage combined with other parameters are investigated through the ratio between excess pore water pressure and surcharge loading.
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