Loess ground Northern Caucasus and Crimea (comparative analysis)
Mass construction of buildings, which are located in the North Caucasus and the Crimea territories, where intensive industrial, civil, hydraulic, irrigation, road and sanatorium-resort construction have been complicating in these territories by loess that are common in the steppe and are local in the flat plots of the foothill areas suitable for construction sites. The article shows the genetic unity of loess formations of the North Caucasus and the Crimea, comparative analysis of collapsible soil composition and properties was conducted, recommendations to crimean builders and designers on application of new methods of dealing with collapsibility which opened up in the North Caucasus were given. As construction practice has shown subsurface explosion is the single option method of riddance of collapsibility of the high thickness of layer. In spite of efficiency soil hydraulic subsurface explosion compaction method didn't widely used in the North Caucasus where loess is common and their thickness could reach 55 meters. Conducted analysis demonstrate the possibility of using soil hydraulic subsurface explosion compaction and auger placed pressure-injected concrete ground pile under the similar conditions of the Crimea.