TY - JOUR ID - 311 TI - Experiments on the Instability of Loose Sandy Slopes Due to Rise in Water Level JO - Amirkabir Journal of Civil Engineering JA - CEEJ LA - en SN - 2588-297X AU - Masoumifard, Vahid AU - Imam, Seyed mohammad reza AU - Rasouli, Rozbeh AD - M.Sc Student, Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, Iran AD - Assistant Professor, Department of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran, Iran Y1 - 2014 PY - 2014 VL - 45 IS - 2 SP - 65 EP - 72 KW - Static liquefaction KW - Flow Slide KW - Pore Pressure KW - Embankment Failure KW - Slope Instability DO - 10.22060/ceej.2014.311 N2 - In a soil mass, a rise in pore water pressure leads to a decrease in the mean effective normal stresses, while the vertical loads due to surcharge may experience small changes. Under such loading, very loose and loose sands may initially experience small volumetric expansion, and then start to contract significantly as failure is approached. These large contractions can lead to the increase in pore water pressure and, consequently, failure of the soil mass under poor drainage conditions. In this paper, an experimental model is used to examine slope instability resulting from rise in water level. It was noticed that the main factor controlling the mode of failure was initial density, but other factors such as method of increase in pore pressure, distribution of pore pressure, and geometry of the test tank also influenced failures. UR - https://ceej.aut.ac.ir/article_311.html L1 - https://ceej.aut.ac.ir/article_311_a6ec3cde7fb96a02876720257d5f8a9b.pdf ER -