Numerical approach to computer simulation of landslide events

Shipovskii, I. E.; Trofimov, V. A.; Malinnikova, O. N.; Xu, Wenjie

doi:10.1063/1.5132196

Cited by 7 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The damage accumulation equation used in this article, as well as the elastic-plastic model, are presented in [7,8]. Earlier, using this approach, a solution to a number of practical problems was demonstrated in [7][8][9].…”

Section: Theorymentioning

confidence: 99%

“…In this article, to solve the problem, the method of smooth particle hydrodynamics (SPH) is used. This method includes all the necessary algorithms for accounting for the destruction of material under load and has proven itself in the study of geomechanics problems [5][6][7][8][9]. Boundary conditions are set on surfaces 1, 2, 3 of the computational domain, where the numbers 1 indicate free surfaces (daytime and cavity), on the surfaces 2, the conditions of complete absorption generated in the process of deformation and destruction of the load waves are realized, and on the surface 3 the condition of complete fixing is set.…”

Section: Theorymentioning

confidence: 99%

See 1 more Smart Citation

Features of formation of karst falls on the earth’s surface

Trofimov

Shipovskii

2020

E3S Web Conf.

View full text Add to dashboard Cite

Karst manifestations are widespread in many regions and pose a significant danger to residence and economic activity. Failing funnels arise during the collapse of rocks over underground voids (caves, workings, etc.), formed during karst formation or in the process of anthropogenic doing in the rock massive. However, not every karst or technogenic cavity gives rise to a failure of the earth’s surface, and as a rule, its occurrence is unexpected. In this work, we consider the dynamics of the formation of dips of the earth’s surface in the form of a collapse pipe. To do this, the geomechanical problem is solved by the meshless code Smoothed Particle Hydrodynamics (SPH). The method allows to obtain a solution to the problem taking into account large deformations and possible discontinuities in the process of changing the stress-strain state. The Drucker-Prager fracture criterion is used, the parameters of which change over time in accordance with the accumulation of damage, which determines the temporary development of the fracture process, its beginning and speed. Various options for the formation of a vertical dip are considered depending on the geometrical parameters of the initial cavity, its depth and materials composing the rock mass, as well as the features of the destruction of various materials composing the mass during the formation of the dip. Relations are obtained that relate the depth of the cavity, the horizontal size of the hole, the strength properties of the rocks (adhesion, angle of internal friction), the coefficient of lateral pressure in the array. The features of wave processes generated by the formation of a dip are considered, for which a velocity field is obtained near the fracture zone at various time points in the fracture process.

show abstract

Section: Theorymentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Features of formation of karst falls on the earth’s surface

Trofimov

Shipovskii

2020

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…To describe the fragmentation in this paper, after analyzing the advantages and disadvantages of various analytical and numerical approaches, the Smoothed Particle Hydrodynamics (SPH) method was chosen [1]. As the practice of calculations showed [1,[3][4][5][6][7], this numerical method automatically takes into account a wide range of physical phenomena related to the nonlinearity of the loading process and possible violation of rock continuity.…”

Section: Theorymentioning

confidence: 99%

Simulation fragmentation of samples of rock at explosive loading

Trofimov

Shipovskii

2020

E3S Web Conf.

View full text Add to dashboard Cite

Research to improve the definition of rational parameters for blasting is becoming increasingly important and valuable. This is especially true in the era of digital technology, which allows miners to realize a holistic vision of optimizing the entire process - from the quarry to the receipt of the final product at the processing plant. The proposed computer simulation based on the Smoothed Particle Hydrodynamics (SPH) method in AUTODYN computer complex to optimize the explosion results by integrating the initial data - charge parameters and rock properties, is aimed at improving measures that reduce the total cost of drilling and blasting, increasing mining productivity and safety. The presented calculations make it possible to estimate the number of fragments and their initial expansion velocity for various explosives.

show abstract

“…Компьютерное моделирование включало динамическое воздействие взрывной волны на материал с дефектами и диффузию молекул метана в открытые микротрещины. Задача распространения взрывной волны в геоматериале решена с помощью метода сглаженных частиц (SPH) [4,5], который позволяет определить основные особенности формирования импульса напряжения в взрывной волне при различных скоростях детонации взрывчатых веществ. Исследование диффузии молекул метана в микротрещины и исследование возможности развития газонаполненных трещин основано на разработках [2].…”

Section: институт проблем комплексного освоения недр им академика нunclassified

FORMIROVANIE POLYa NAPRYaZhENIY I DEFORMATsIY PRI RAZRUShENII UGOL''NOGO PLASTA VZRYVOM SKVAZhINNOGO ZARYaDA (KOMP''YuTERNOE MODELIROVANIE)

2020

Mezhdunarodnaya Konferentsiya "Fizicheskaya Mezomekhanika. Materialy S Mnogourovnevoy Ierarkhicheski Organizovannoy Strukturoy

View full text Add to dashboard Cite

Numerical approach to computer simulation of landslide events

Cited by 7 publications

References 2 publications

Features of formation of karst falls on the earth’s surface

Features of formation of karst falls on the earth’s surface

Simulation fragmentation of samples of rock at explosive loading

FORMIROVANIE POLYa NAPRYaZhENIY I DEFORMATsIY PRI RAZRUShENII UGOL''NOGO PLASTA VZRYVOM SKVAZhINNOGO ZARYaDA (KOMP''YuTERNOE MODELIROVANIE)

Contact Info

Product

Resources

About