2016 №1(50) Article 10
S.I. Bolyssov, V.A. Nekhodtsev
Sub-Relief and underground processes as environmental and geomorphologic threats in urban areas. P. 87-105.
UDC 574+551.4
During the last 100–150 years urban development has been influencing the geological environment, modifying the underground structures and interacting with the geological and geomorphologic processes. The narrow 30–50 meter strips of soil exposed to urban influence abound in artificial and natural caverns. Both artificial and natural caverns (to denote which the authors use the term sub-relief structures) together with anthropogenic and natural underground processes trigger off ecological and geomorphologic factors that endanger urban areas. Among these factors the authors single out such factors as internal, karst and fluvial erosion processes in subsurface rain and river water reservoirs (both natural and artificial). Erosion processes bring about the deformation and destruction of surfaces and buildings. Natural subsurface water reservoirs collect pollutants whose TLVs exceed the norm 20–50 times. The dangerous underground processes, being very rapid and excessively detrimental, do not lend themselves to forecasting.
geological environment, urban area, karst, dangerous processes, subsurface river, sub-relief, internal erosion, ecological and urban geomorphology
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