粘性土剪切变形中渗透性试验 研究及数学模型
Experimental Study and Mathematical Model on Permeability of Clayey Soil with Shear Deformation

作者: 雷红军 :中国水电顾问集团昆明勘测设计研究院,昆明;

关键词: 渗透系数剪切变形渗流数学模型Permeability Shearing Deformation Seepage Mathematical Model

摘要:
本文研制了一种新型的渗流试验设备,用以测定土体在发生剪切变形过程中不同物理力学状态条件下的渗透系数,针对某种粘性土进行了一系列试验,结果表明粘性土剪切变形过程中的渗透系数受到多种因素的影响,其中剪切应变和围压的影响最为显著。在此基础上提出了一个可反映土体物理状态变化及剪切中结构变化对其渗透性影响的数学模型,通过试验数据拟合验证,结果表明该模型可有效反映土体剪切变形过程中不同物理力学状态条件下的渗透系数
A new seepage device was developed to measure permeability of clayey soil under different physical and mechanical status with shearing deformations. A series of seepage tests were carried out on a certain clayey soil and indicated that permeability of the soil was related with many factors, among which the shearing strain and confining pressure were the most important. Based on the testing results and mechanism analysis, a new relation model of permeability to reflect effect of physical and mechanical status was raised. The model was then fitted and checked by the testing results.

文章引用: 雷红军 (2014) 粘性土剪切变形中渗透性试验 研究及数学模型 。 渗流力学进展, 4, 1-9. doi: 10.12677/APF.2014.41001

参考文献

[1] Chu, J. (2002) Consolidation and Permeability Properties of Singapore Marine Clay. Journal of Geotechnical and Geoenvironmental Engineering, 128, 724-732.

[2] Marshall, T.J. (1958) A Relation between Permeability and Size Distribution of Pores. European Journal of Soil Science, 9, 1-8.

[3] Nishida, Y., Koike, H. and Nakagawa, S. (1971) Coefficient of Permeability of Highly Plastic Clays. Proceedings of the 4th Budapest Conference on Soil Mechanics and Foundation Engineering, Budapest, 12-15 October 1971, 127- 133.

[4] Garcia, I., Lovell, C.W. and Altschaeffle, A.G. (1979) Pore Distribution and Permeability of Silty Clays. Journal of the Geotechnical Engineering Division, 105, 839-856.

[5] Bryant, W.R. and Richardson, M.D. (1992) Permeability and Porosity of Clayey Sediments in Seis-mo-Acoustics. The Journal of the Acoustical Society of America, 92, 2308-2321.

[6] Chan, H.T. and Kenney, T.C. (1973) Laboratory Investigation of Permeability Ratio of New Liskeard Varved Soil. Canadian Geotechnical Journal, 10, 453-472.

[7] Carpenter, G.W. and Stephenson, R.W. (1986) Permeability Testing in the Triaxial Cell. Geotechnical Testing Journal, 9, 3-9.

[8] 朱建华 (1989) 土坝心墙原状土的三轴渗透试验. 岩土工程学报, 4, 57-63.

[9] 李平, 骆亚生 (2006) 饱和土的三轴渗透试验研究. 路基工程, 6, 32-33.

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