Abstract
A quick clay, distributed throughout the Scandinavian peninsula and Canada, has an unstable structure with the high sensitivity ratio of more than 8. In quick clay deposit areas, therefore landslides occur frequently caused by fluvial erosion, freezing and thawing of ground, or vibration due to engineering works . In order to study the relationship between landslide activity, pore pressure and meteorological factors, the authors established a research site at a quick clay landslide area in Norway, and started an automated observation of landslide movement in November of 1997. We observe precipitation, meltwater, air temperature, soil temperature, pore pressure, and displacement of the landslide. A but with power supply was built close to the instrument field, and observation data are collected every 15 minutes by a logger in this hut. We report on this observation system and some results from observations during one year.
