Influence of a Critical Gradient on the Consolidation of Clays
Influence of a Critical Gradient on the Consolidation of Clays
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DOI：
10.1520/stp34623s
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
B. Dubin;G. Moulin
中科院分区：
文献类型：
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作者：
B. Dubin;G. Moulin
实验室中的几项研究表明，存在一个渗透率定律，它不同于达西定律，并定义了某些天然粘土中孔隙水的流动。在E.N.S.M.对Saint Herblain粘土进行的实验室固结试验，包括不同加载阶段的渗透性测量。土力学实验室证明了主要临界梯度的存在（12 < i 0 < 20）。根据这一观测结果，利用有限差分法计算程序，建立了一个非达西渗透定律的固结模型。一方面，将该模型与太沙基固结模型进行了比较，另一方面，在室内试验的基础上，对所建立的规律进行了检验。
Several studies in the laboratory have shown the existence of a permeability law which is different from Darcy's law and which defines the flow of the pore water in certain natural clays. Consolidation tests in the laboratory, including the measurement of permeability at different stages of loading, that were carried out on Saint Herblain clay at the E.N.S.M. Soil Mechanics Laboratory prove the existence of major critical gradients (12 < i 0 < 20). According to this observation, a consolidation model worked out with a non-Darcian permeability law has been produced by means of a finite-difference computer program. On the one hand, this model is compared with Terzaghi's consolidation model and, on the other hand, the law that has been established is tested next to the laboratory tests.