Mathematical models for numerical solution of nonstationary problems of geomechanics

Тugelbayeva, G. K.

doi:10.1063/5.0035683

PROCEEDINGS OF THE X ALL-RUSSIAN CONFERENCE “Actual Problems of Applied Mathematics and Mechanics” With International Participa 2020

DOI: 10.1063/5.0035683

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Mathematical models for numerical solution of nonstationary problems of geomechanics

G. K. Тugelbayeva¹

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2023

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Analysis on propagation law of shallow underground chemical explosion seismic waves

Wang,

Kong

2023

Front. Phys.

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Introduction: Seismic waves generated by shallow underground explosions propagate differently from those generated by surface explosions. Thus, an accurate understanding of the propagation laws of seismic waves generated by explosions at various burial depths and TNT equivalent amounts is significant in assessing the destructive power of munitions and establishing guidelines for their application.Methods: In this study, we conducted several ground vibration velocity tests of shallow underground chemical explosion seismic waves for various TNT equivalent amounts and burial depths in a shooting range and analyzed the propagation of the seismic waves. Using the explosion similarity theory and dimensional analysis, we derived an equation for the estimation of the particle vibration velocity of shallow underground chemical explosion seismic waves. This equation calculation results have a very high degree of agreement with the measured data, measured data verify that the accuracy of the calculation model is better than 90.2%.Results and discussion: This equation calculation results have a very high degree of agreement with the measured data, measured data verify that the accuracy of the calculation model is better than 90.2%, which greatly improves the calculation accuracy of the shallow underground chemical explosion seismic wave particle vibration velocity, and thus provide effective theoretical support for analyzing explosion seismic waves in engineering tests.

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Analysis on propagation law of shallow underground chemical explosion seismic waves

Wang,

Kong

2023

Front. Phys.

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An Overview of Slope Failure in Mining Operations

Kolapo

Oniyide

Said³

et al. 2022

Mining

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The primary aim of every twenty-first century mining operation is to extract as much ore as possible in a safe and economical manner. Failure in mine excavation occurs when the shear stress acting on the rock is greater than the shear strength of the rock mass. The stability of rock slopes in open-pit mine and quarry operations is extremely important from both economic and safety points of view because unstable slopes can result in the loss of human life and damage to properties. This paper presents an overview of several case studies of slope failure in mining operations and explains various modes of failure in rock slopes, as well as factors that influence the stability of slope walls. With the aim of enforcing the importance of monitoring and evaluating slope stability in mining, both linear equilibrium and numerical modeling techniques were reviewed to elaborate their importance in designing stable slopes. In addition, the process of slope failure was discussed, and key signs of failure were indicated. In an effort to prevent mines from experiencing the hazards of slope failure, this study reports previous work performed in determining slope failure and the current state-of-the-art models, which entail the integration of analytical methods with artificial intelligence techniques. This innovation would help overcome the drawbacks of conventional prediction techniques that are cumbersome and ambiguous.

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Mathematical models for numerical solution of nonstationary problems of geomechanics

Cited by 2 publications

References 1 publication

Analysis on propagation law of shallow underground chemical explosion seismic waves

Analysis on propagation law of shallow underground chemical explosion seismic waves

An Overview of Slope Failure in Mining Operations

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