The Study of Seepage on the Incline of Multilayer Soils

• Main Authors: Lai,Shih-Pao, 賴世寶
• Other Authors: Tan,Yih-Chi
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/78303447556363438822

碩士 === 國立臺灣大學 === 農業工程學系 === 82 === The objective of this study is to discuss the behavior of on the incline of multilayer soils. Since it is difficult to the seepage point, the problem is analyzed theoretically appropriate boundary condition and then the free surface estimated using Boussinesq equation. By simplifying the conditions in soil layers, the amount of seepage is calculated one- dimensional assumption. Theoretical and labortary study performed to analyze this problem. A sandbox experiment has conducted. The variation of head is measured at 48 measurement using manometer. Dye tracer is introduced to observe the and seepage point. Then the seepage flow equations are sectionally by one-dimensional assumption. Results show that possible to calculate the amount of seepage using assumption for the case of one or two layer aquifer system will have significant errors for three-layers soils. The of vertical flow has been observed in the laboratory experiment.