Laboratory investigation of the hydraulic performance on a geofilm with various sized flaws
1 Key Laboratory of Mechanics on Disaster and Environment in Western China(Lanzhou University), Ministry of Education, Tianshui South Road No. 222, 730000 Lanzhou, Gansu, People's Republic of China
2 School of Resource and Environmental Science, Lanzhou University, Tianshui South Road No. 222, 730000 Lanzhou, Gansu, People's Republic of China
2 School of Resource and Environmental Science, Lanzhou University, Tianshui South Road No. 222, 730000 Lanzhou, Gansu, People's Republic of China
Abstract
Leakage through flaws in geofilm was examined with laboratory tests by flexible wall permeameter. Samples cracks were cut open by the sharp blade, with the results that the widths of the flaws were the same while the lengths were different. During the research, a series of laboratory permeameter tests have been performed to determine the influence of the various factors on the leakage rate of water through the flaw at the center of geofilm. The impact of various parameters examined included the following conditions
Keywords
confining stress; flow rate; geofilm flaws; hydraulic pressure