Landslide Danger and Timeliness of its Perception: Regional Experience

Abstract

An abnormally prolonged increase the groundwater in 2004-2006 years activated landslide processes in the Voronezh region. Landslide-hazardous territories in the region are mainly administrative districts located in descending valleys in the direction of the main watercourses: r. Don, r. Khoper, r. Podgornaya. Purpose: The purpose of the work was to identify the physical nature of the landslide process, its occurrence and development under the influence of natural and technogenic factors. The object of the exploration was the territory near the Kamenka-Marki highway (6 km) with an actively developing landslide process. Methods: Establishing the numerical characteristics of landslide processes involves the use of a number of methodological approaches, including inventory, field inspection, revealing the dynamics of the process based on aerospace survey materials with the subsequent prediction of its activity. Results: The genesis of the development of a landslide was studied. The dominant factors affecting the activation of the landslide process are identified. The KUVO “Civil Defense, Protection of the Population and Fire Safety of the Voronezh Region” made an inventory of landslide processes in the territory of the Voronezh region. 34 areas of the territory of the Kamensky district, with more than two hundred addresses, were examined. The images obtained from the quadrocopter allowed to reveal the morphology of the main elements of the landslide, indicating its active development. By analyzing the different times cosmic images was evaluated the dynamics of the landslide process. Real measurements of the landslide were made during the field survey. 97 households were identified in settlements of the Kamensky district located in the landslide zone, as a section of the Kamenka-Marki highway (6 km), which is in danger of destruction from a landslide. Conclusions: Anomalous weather conditions in the Voronezh region in 2004-2006 leaded to high water-logging of soils, that provoked the activation of landslide processes. The most landslide hazardous area of the region is the Kamensky municipal district. At the same time, the real danger is the destruction of the Kamenka-Marki highway (6 km), which will lead to the cessation of communication between seven settlements.