Известия Томского политехнического университета: Инжиниринг георесурсов (Apr 2019)
CALCULATION OF STABILITY OF SLOPES IN THE AREAS OF CONSTRUCTION OF SPORTS AND TOURIST COMPLEX «GORNY VOZDUKH» (MOUNTAIN BOLSHEVIK, YUZHNO-SAKHALINSK)
Abstract
The relevance of the researches is caused by the need of safety ensuring in functioning of STK «Gorny vozdukh» objects. On sloping parts of the STK there is a danger of landslide processes. The first stage of specialized monitoring was performed to assess the dynamics of development of landslide processes in places of mass accumulation of people in the STK functioning. The aim of the research is to study the dynamics of landslide processes and to assess the stability of slopes in places with a large number of holidaymakers and athletes for their safety. Objects: Northern, Southern and Western slopes of Bolshevik mountain; soil composing the upper part of the lithosphere to a depth of 10 meters; groundwater. Methods: relevant research in the cross stretch of the slope – route reconnaissance survey, excavation of test pits up to two meters deep (full passage deluvial sediments and the autopsy eluvial rocks), sampling of undisturbed structure with the interval of 0,2–0,3 m, geophysical investigation by ground penetrating radar scanning using a mobile GPR setup ОКО-2, laboratory testing of selected soil samples. Groundwater is not detected within the research process. Results. According to the research in November–December 2017 at three sites of STK «Gorny vozdukh» – the Northern, Southern and Western slopes – the authors have selected the representative sites on slopes, made specification of engineering-geological section of the listed slopes, in particular the position of the border «deluvium–eluvium», made the calculation of engineering-geological elements and the coefficients of stability of slopes within the studied plots according to the method of tangential forces for propped against the slope in the absence of groundwater.
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