Research of gas-explosive objects in the upper part of the section using unmanned aerial vehicles. Article 1.

The main goal of this work is to study the specifics of karst sinkholes as a particularly dangerous natural and man-made phenomenon, the formation of which can be often associated with degassing of the Earth. It is shown that the hazard of karst formation in the upper part of the section increases due to the uniform filling of karst cavities with gas. The presence of gas in cavities can lead to abnormally high or even superlithostatic reservoir pressure, creating gas-dynamic processes that destroy rocks, forming cavity roofs and leading to gas blowouts/explosions. The results of analytical studies of natural and man-made karst threats in a number of regions of Russia and Turkmenistan with a search time of more than 250 years are presented. Based on the Earth remote sensing data from space and UAV data, regional and local studies of the karst phenomena were carried out in the Perm region in the areas of Uralkali PJSC operations (the cities of Berezniki and Solikamsk) and in the Tula region near the village of Dedilovo. When interpreting satellite images in the area of the village of Dedilovo, more than 130 karst sinkholes were identified, some of which are associated with gas-dynamic processes. This indicates the increased danger of this study area. The results of studying karst sinkholes and caves in Russia, as well as in other regions of the world, obtained by the author, formed the special section of a constantly expanding database in the Arctic and World Ocean Geoinformation System (AMO GIS). In continuation of this research, the Article 2 will provide a detailed description of the methodology and results of studying the DKP-2019 sinkhole in the vilage of Dedilovo using unmanned aerial vehicles based on photogrammetric processing with building 3D models.