| 渗透诱发固结中高塑性粘土固结参数的确定 |
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| 引用本文： | 魏静,张力霆. 渗透诱发固结中高塑性粘土固结参数的确定[J]. 工程勘察, 2003, 0(6) |
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| 作者姓名： | 魏静 张力霆 |
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| 作者单位： | 天津大学建工学院岩土工程研究所 天津300072(魏静)，河北工程技术高等专科学校 河北沧州061001(张力霆) |
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| 摘 要： | 软粘土在渗透压力作用下 ,孔隙比e,压缩系数a ,渗透系数k随固结过程中应力—应变状态的变化而变化 ,具有大应变、非线性等特点。本文通过渗透固结模型实验 ,对渗透压力下高塑性粘土一维非线性固结特性进行研究 ,确定了固结过程中压缩性关系 (e-σ′)、渗透性关系 (e-k)表达式 ,从而为该渗透固结机理应用到土坝水平防渗措施中粘土铺盖裂缝的淤填、淤积铺盖防渗性能的提高等方面提供理论依据
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| 关 键 词： | 渗透压力 高塑性 渗透系数 孔隙比 有效应力 |
Determinations of Consolidation Parameters for Soft Clay with Permeating Conso lidation |
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| Wei Jing et al.. Determinations of Consolidation Parameters for Soft Clay with Permeating Conso lidation[J]. Geotechnical Investigation & Surveying, 2003, 0(6) |
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| Authors: | Wei Jing et al. |
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| Affiliation: | Wei Jing et al. |
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| Abstract: | The void ratio e, the coefficient of compressib ilit y a and the permeability k of soft clay vary with the change of stress| strain s tate under seepage pressure. Based on the model tests of seepage|induced consol idation, the consolidation characteristics of soft clay with high plasticity und er seepage pressure is studied under the condition of 1|D non|linear consolida tion. The expression inculding the relationship of void ratio, effective stress and permeability is given.The mechanism of seepage|induced consolidation can la y theoretical base for the improvement of anti|seepage capacity of earth dam. |
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| Keywords: | seepage pressure high plasticity permeability void ratio effective stress |
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