Open AccessStability of Artificial Urban Slopes to Mini-Landslides
Author(s) -
Sergey Chuchkalov,
В. В. Алексеев
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/666/6/062004
Subject(s) - landslide , water content , geotechnical engineering , soil science , soil water , environmental science , slip (aerodynamics) , friction coefficient , moisture , bulk density , geology , materials science , geography , engineering , meteorology , composite material , aerospace engineering
The growth of cities causes changes in the natural landscape and is associated with the construction of structures on natural and artificial slopes. In this regard, large areas become susceptible to landslide danger. The paper considered slip microslides that appear on the slopes of urbanized areas. The functional dependence of the coefficient of friction in soil on moisture, density and type of soil was obtained on the basis of considering soil moisture as a phase that has interfaces with soil air and the solid phase of the soil. For gray forest and soddy podzolic soils, the values of moisture content (0.30±0.04 m 3 /m 3 and 0.22±0.04 m 3 /m 3 , respectively) were revealed, at which the stickiness of the soil begins to affect the friction. Using the obtained dependence of the coefficient of friction in the soil on moisture, density and type of soil, an expression was proposed to estimate the ratio of the thickness and length of a landslide for various angles of slope inclination. The carried out numerical estimates of geometric landslide characteristics were consistent with real landslide processes on artificial slopes of urban planning objects.