Influence of suction pressure of clay unsaturated soils on slope stability-Reference-Cited by-同舟云学术

Influence of suction pressure of clay unsaturated soils on slope stability

Published:2024-08-05 Issue:2 Volume:66 Page:69-79
ISSN:2618-8708
Container-title:Proceedings of higher educational establishments. Geology and Exploration
language:
Short-container-title:Izvestiya Vysshikh Uchebnykh Zavedeniy. Geologiya i Razvedka

Author:

Novgorodova M. A.¹^ORCID,Gorobtsov D. N.²^ORCID,Ushakov A. S.³^ORCID

Affiliation:

1. Sergo Ordzhonikidze Russian State University for Geological Prospecting

2. Sergo Ordzhonikidze Russian State University for Geological Prospecting

3. Gersevanov Research Institute of Bases and Underground Structures (NIIOSP), Research Center of Construction JSC

Abstract

Background. The main aspects of the influence of suction pressure on slope stability are considered; an example of calculations in the Plaxis software is presented. Specific features in the behavior of unsaturated and saturated soils are described. A model for describing the behavior of saturated soil under the influence of suction pressure is proposed.Aim. Soviet hydrophysic and soil scientists actively explored the relationship between capillary-sorption (structural or matrix) water pressure in the soil and humidity. However, the introduction of foreign methods and software based thereon into the engineering and geological practice of calculating the stability of slopes has raised the question about the influence of suction pressure of clay soils on the stability of slopes. Materials and methods. The main research material was loams of the Moscow glaciation. Simulation was carried out based on the Muallem — van Genuchten model.Results. The simulation results showed that suction pressure and capillarity directly affect the slope stability coefficient, provided that the similarity of other model parameters.

Publisher

Sergo Ordshonikidze University

Reference20 articles.

1. Bakhaev A.N., Mashenkin P.A., Sidorov M.L. Models of saturated-unsaturated and pressure-non-pressure filtration in the NIMFA program complex // VANT, ser. Mathematical modeling of physical processes. 2019. Vol. 3. pp. 73—83.

2. Boldyrev G.G., Kolesnikov A.S., Novichkov G.A. Interpretation of the results of laboratory tests to determine the strength characteristics of soils // Engineering surveys. 2014. No. 5—6. pp. 78—85.

3. Goldin A.L., Nguyen Phuong Dung. Construction of a stress trajectory for unsaturated soil during consolidated undrained tests in a stabilometer // Engineering and Construction Journal. 2012. No. 9. P. 1—8.

4. Dugartsyrenov A.V. Physico-chemical model of cohesive rock // Mining Information and Analytical Bulletin. 2007. No. 8. P. 80—88.

5. Madi Ahmed Yehia Ali Ali. Experimental studies and modeling of the dynamics of soil moisture and temperature: abstract of thesis. dis. ... cand. biol. sci. M., 2018. 25 p.