Some Models for Determination of Parameters of the Soil Oscillation Law during Blasting Operations

Lutovac, Suzana; Medenica, Dragan; Gluščević, Branko; Tokalić, Rade; Beljić, Čedomir

doi:10.3390/en9080617

Cited by 4 publications

(3 citation statements)

References 3 publications

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“….., N − 1) we will get one broken line. In so doing, the area bounded by x-axis, line segments x 1 M 1 and x N M N and broken line, consisting of (N − 1) trapezoid [12,13], has the value:…”

Section: Model 3-determining the Parameters Using The Linear Connectimentioning

confidence: 99%

Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

et al. 2018

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The explosion caused by detonation of explosive materials is followed by release of a large amount of energy. Whereby, a greater part of energy is used for rock destruction, and part of energy, in the form of seismic wave, is lost in the rock mass causing rock mass oscillation. Investigations of the character and behavior of the pattern of seismic wave indicate that the intensity and nature of the seismic wave are influenced by rock mass properties, and by blasting conditions. For evaluation and control of the seismic effect of blasting operations, the most commonly used equation is that of M.A. Sadovskii. Sadovskii's equation defines the alteration in the velocity of rock mass oscillation depending on the distance, the quantity of explosives, blasting conditions and geological characteristics of the rock mass, and it is determined based on trial blasting for a specific work environment. Thus, this paper offers analysis of the method for determination of parameters of the rock mass oscillation equation, which are conditioned by rock mass properties and blasting conditions. Practical part of this paper includes the experimental research carried out at Majdanpek open pit, located in the northern part of eastern Serbia and the investigations carried out during mass blasting at Nepričava open pit, located in central Serbia. In this paper, parameters n and K from Sadovskii's equation were determined in three ways-models in the given work environment. It was noted that, in practice, all three models can be successfully used to calculate the oscillation velocity of the rock masses.

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Section: Model 3-determining the Parameters Using The Linear Connectimentioning

confidence: 99%

Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

et al. 2018

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“…The Coefficient is conditioned by ground characteristics, as well as blasting conditions, where the explosive amount is given by way of the volume. K is determined by terrain surveying [13]; n-coefficient of seismic waves suppression on the expansion path, which is an exponent, conditioned by ground properties and mining conditions and determined by field measurements as well; Q-quantity of explosives (kg); and R-distance from the endangered facility/buildings (m).…”

Section: Seismic Shaking Of the Ground Surface In Blastingmentioning

confidence: 99%

“…K and n parameters are conditioned by ground characteristics and blasting conditions, thereby v is the decreasing convex function of the variable R [13]. Monitoring in the first years of mine work provide data which is mathematically processed using the least-squared method and fit curve, and the result is numerical value of parameters K and n from Equation (2) [14].…”

Section: Seismic Shaking Of the Ground Surface In Blastingmentioning

confidence: 99%

Determination of Seismic Safety Zones during the Surface Mining Operation Development in the Case of the “Buvač” Open Pit

Malbašić

Stojanović

2018

Minerals

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Determination of the blasting safety area is a very important step in the process of drilling and blasting works, and the preparation of solid rock materials for loading. Through monitoring and analysis of the negative seismic effects to the objects and infrastructures around and at the mine area, we were able to adapt the drilling and blasting parameters and organization of drilling and blasting operation according to the mining progress so that the affected infrastructures could be protected. This paper analyses the safety distances and model safety zones of drilling and blasting for the period 2013-2018 at the open pit at "Buvač", Omarska. This mathematical calculation procedure can be used during the whole life of the mine. By monitoring of the blasting seismic influence in first years of the mine's work, as well as by using recorded vibration velocities, mathematical dependence of the important parameters can be defined. Additionally, the level and laws of distribution and intensity of the seismic activity can be defined. On one hand, those are known quantities of the explosive and the distances between blasting location and endangered objects. On the other hand, those are coefficients of the manner of blasting and the environment where blasting is done, K, as well as the coefficient of the weakening of seismic waves as they spread, n. With the usage of the allowed vibration velocities, based on certain safety criteria and mathematical formulas of laws of spreading and intensity of seismic influence for a concrete case, it is possible to calculate explosive quantities and distances, with numerically-defined values of parameter K and n. Minimum distances are calculated based on defined or projected explosive quantities. Additionally, we calculate the maximum allowed explosive quantities based on known distances which can be used based on projected drilling-blasting parameters. For the purpose of the planning of drilling and blasting it is possible to define the allowed explosive quantities or minimum allowed distances in any area of the surface pit from the aspect of seismic safety. In the indicated case, and based on the analysis results, it is shown that in some areas of mining works in the case of the "Buvač", Omarska open pit, projected explosive quantities cannot be used. In some cases, it is even necessary to divide the explosive charge in blasting holes with additional delayers.

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Sustainable Futures in a Changing World – Reflections from the 5th International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2024)

Kiv,

Semerikov,

Nechypurenko

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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This paper presents an overview of the 5th International Conference on Sustainable Futures: Environmental, Technological, Social, and Economic Matters (ICSF 2024), held in May 2024. The conference brought together over 250 researchers, practitioners, and educators from 19 countries to share cutting-edge research and innovative solutions across a wide range of sustainability-related disciplines. The proceedings cover diverse topics, including climate change, disaster risk reduction, sustainable infrastructure, education for sustainability, environmental engineering, and sustainable business practices. Key themes that emerged include the integration of digital technologies in sustainability efforts, the impacts of global crises on sustainable development, and the importance of interdisciplinary approaches. The conference showcased both theoretical advancements and practical applications, with a particular focus on addressing the United Nations Sustainable Development Goals. This overview highlights the conference’s role in fostering global dialogue and collaboration to address pressing sustainability challenges and shape a more sustainable future.

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Some Models for Determination of Parameters of the Soil Oscillation Law during Blasting Operations

Cited by 4 publications

References 3 publications

Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

Models of Determining the Parameters of Rock Mass Oscillation Equation with Experimental and Mass Blastings

Determination of Seismic Safety Zones during the Surface Mining Operation Development in the Case of the “Buvač” Open Pit

Sustainable Futures in a Changing World – Reflections from the 5th International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2024)

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