engleski

Landslide initiation in small-scale sandy and clayey slopes exposed to artificial rain

Physical modelling of landslides using scaled landslide models behaviour began in 1970s in Japan on scaled natural slope models. The laboratory experiments of landslide behaviour in a scaled physical model (flume or flume test) started in 1980s and 1990s in Canada, Japan and Australia under 1g conditions. The main purpose of the landslide physical modelling in the last 25 years was research of initiation, motion and accumulation of fast flow like landslides caused by infiltration of water in a slope. In this paper the results obtained in landslide initiation test of a sandy and clayey slopes at different slope angles exposed to artificial rain by rainfall simulator are presented. The results of landslide development are monitored by observation of volumetric water content, matric suction and pore water pressure, as well as by monitoring of surface displacements and the displacements inside the sliding mass. The main observations from the results of provided tests related to initiation and development of the observed instabilities of sandy and clayey slopes are given.

physical modelling, small-scale slope, landslide, monitoring, artificial rain.

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