Setting soil strength parameters for slope stability calculations

Фоменко, И. К.; Kurguzov, Konstantin V.; Зеркаль, О.В.; Sirotkina, O.N.

doi:10.1201/9780429058882-12

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…At the Garmsky geodynamic testing ground, a detailed picture of displacements in the frontal part of the thrust was obtained in a series of profiles that intersect the thrust: a dip before the plane of thrust comes to the surface up to 5 mm/year, a shaft-like rise of the thrust front at a rate of 4 -15 mm/year. This establishes the flakiness of the thrust *Corresponding author: ol.barykina2011@yandex.ru [7]. At present, creep movements are recorded along the fault, and earthquakes of up to 9 magnitude are associated with movements along the fault.…”

Section: Engineering-geological Conditions Of the Rogun Hydropower Plant Sitementioning

confidence: 93%

“…27 filled with friction clay with reduced values of strength and strain properties (table 1). The generalized Hoek-Brown criterion was used as the strength criterion [7,8]. For this purpose, the refinement of the indicators of the Hoek-Brown strength criterion taken in the calculation was carried out in the RocLab Program (Rockscience Inc.), which allows the transition from the results obtained in the sample to the massif characteristics [9].…”

Section: Engineering-geological Conditions Of the Rogun Hydropower Plant Sitementioning

confidence: 99%

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Numerical simulation of stress distribution

2021

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The Rogun hydropower plant is being constructed in Tajikistan, in the valley of the Vakhsh River. The construction site is located in a narrow gorge separating the Vakhsh and Surkh-Ku ridges. Most of the hydroelectric complex structures are located within a single tectonic block, which is bounded by two faults - Ionakhsh and Gulizindan, which are proximal to the Vakhsh regional fault. The study of stress distribution around the diversion tunnel was carried out by numerical simulation, which aimed to identify the stress distribution in the strongly dislocated heterogeneous rock massif before and after the tunnel creation. The underground cavity of the tunnel is a significant factor influencing the natural stress field of the rock massif. An area with critical values of the strength coefficient in the working roof, caused by the presence of a weak layer of Lower Cretaceous siltstones, is revealed in the tunnel location. The size of this area reaches two tunnel diameters. The change of stresses and their concentration around the underground working can cause deformations in the roof (collapse or rock bumps).

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Section: Engineering-geological Conditions Of the Rogun Hydropower Plant Sitementioning

confidence: 93%

Section: Engineering-geological Conditions Of the Rogun Hydropower Plant Sitementioning

confidence: 99%

Numerical simulation of stress distribution

2021

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The Uncertainty of Geological Systems in Geotechnical Calculations

Фоменко

Shubina

Kurguzov

et al. 2021

Developments in Sustainable Geomaterials and Environmental Geotechnics

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Possibility of landslide damming in the Vakhsh River catchment and its effect on the hydraulic schemes and population

Фоменко

Strom²,

Зеркаль

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Large-scale landslides in mountainous regions can create high natural dams resulting in valleys inundation and subsequent disastrous outburst floods that can devastate entire valleys and cause serious problems for the hydraulic schemes located far downstream. Thus, it is very important to identify sites where such damming could occur in the catchment areas of rivers, where artificial dams and reservoirs are constructed. A case study from the Vakhsh River catchment is presented where evidence of an extremely large slope instability have been identified. Its safety factor was determined considering the possibility of an earthquake occurrence in this tectonically active region. The height of the anticipated natural dam and volume of the dammed lake were estimated as well based on the empirical relationships. Measures aimed to mitigate the potential risks are proposed.

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Setting soil strength parameters for slope stability calculations

Cited by 4 publications

References 1 publication

Numerical simulation of stress distribution

Numerical simulation of stress distribution

The Uncertainty of Geological Systems in Geotechnical Calculations

Possibility of landslide damming in the Vakhsh River catchment and its effect on the hydraulic schemes and population

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