- BASES AND FOUNDATIONS, UNDERGROUND STRUCTURES
- Assessment of Slope Stability under Seismic Impact
- UDC 624.131.7+550.349.4
Oleg V. ZERKAL1, e-mail: igzov@mail
Igor K. FOMENKO2, e-mail: firstname.lastname@example.org
Kay KANG1 (Peoples's Republic of China), e-mail: email@example.com
1 Lomonosov Moscow State University, Leninskie Gory, 1, Moscow 119991, Russian Federation
2 Russian State Geological Prospecting University, ul. Miklouho-Maklaya, 23, Moscow 117997, Russian Federation
Abstract. A large part of the territory of the Russian Federation is located in the zone of possible earthquakes with an intensity of 7 points (MSK-64) and more, which can be accompanied by secondary earthquake-induced dislocations. Among such dislocations the most hazardous are earthquake-induced landslides. The current normative documents regulating the design of industrial and civil objects under the seismic impact don't consider the issues of assessment of the development of seismic-gravitation dislocations. On the example of a model slope, the article qualitatively evaluates its stability with the use of quasi-static and dynamic analysis; values of the stability factor are obtained. The value of the stability factor calculated on the basis of quasi-static analysis is slightly less than its minimum values calculated on the basis of dynamic analysis. The marked differences are the first percentages. The conservatism of the obtained quantitative estimates of the slope in the conditions of seismic impact is shown. This requires additional analysis in order to justify measures to ensure the stability of the slope in seismic conditions for industrial and civil buildings and structures.
Key words: earthquake-induced landslides, quantitative assessment of slope stability, quasi-static analysis, dynamic analysis, seismic impact.
1. Living with Risk. A global review of disaster reduction initiatives [Жизнь с риском. Глобальный обзор инициатив по уменьшению опасности бедствий]. ISDR, United Nation, Geneva, 2002. 78 p.
2. Zerkal' O. V. Engineering-geological and engineering-seismological study of epicentral zones of strong earthquakes. Georisk, 2010, no. 1, pp. 62-65. (In Russian).
3. Bird J. F., Bommer J. J. Earthquake losses due to ground failure [Ущерб при землетрясениях от деформаций грунтов]. Engineering Geology, 2004, vol. 75, no. 2, pp. 147-179.
4. Petley D. Global patterns of loss of life from landslides [Глобальные закономерности гибели людей от оползней]. Geology, 2012, vol. 40, no. 10, pp. 927-930.
5. Morgenstern N. R., Price, V. E. The analysis of the stability of general slip surfaces [Анализ устойчивости по основной поверхности скольжения]. Geotechnique, 1965, vol. 15, no.1, pp. 79-93.
6. Krahn J. Stability Modeling with SLOPE/W [Моделирование устойчивости в SLOPE/W]. An Engineering Methodology. Calgary, GEO-SLOPE International Ltd., 2007. 355 p.
7. Kalinin E. V. Inzhenerno-geologicheskie raschety i modelirovanie [Engineering-geological calculations and modeling]. Moscow, MGU Publ., 2006. 256 p. (In Russian).
8. Fomenko I. K., Zakharov R. G., Samarkin-Dzharskiy K. G., Sirotkina O. N. Consideration of seismic effects in slope stability calculation (by the example of Krasnopolyansky geodynamic polygon). Georisk, 2009, no. 4, pp. 50-55. (In Russian).
9. Li Y., Gao G., Li T. Analysis of earthquake response and stability evaluation for transverse slope at second tunnel portal [Анализ реакции на сейсмическое воздействие и оценка устойчивости поперечного склона для второго портала тоннеля]. Chinese Journal of Underground Space Engineering, 2006, vol. 2, no. 5, pp. 738-743.
- For citation: Zerkal O. V., Fomenko I. K., Kang Kay. Assessment of Slope Stability under Seismic Impact. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 4, pp. 33-36.