Verification of applicability in space domain of the inverse filtering with evolution control for reconstruction of images obtained by radar scanning

Drobakhin, O. O.; Olevskyi, O. V.

doi:10.1063/1.5064904

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…According to [1]- [5], [11], [12], [16] and [17] studies, efficiency of roller-bit drilling rig, being common for open pits, is determined as follows:…”

Section: Methodsmentioning

confidence: 99%

Mathematical model to optimize drilling-and-blasting operations in the process of open-pit hard rock mining

Shcherbakov¹,

Tymchenko²,

Bitimbayev³

et al. 2021

Min. miner. depos.

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Purpose is to determine a function of the reduced expenditures connected with drilling-and-blasting operations, loading and hauling operations, and rock fragmentation depending upon the cost of machine-shift of the applied facility, its operation modes, hardness of rock being blasted, cost of the used explosive, and rock fragmentation quality based upon the developed optimization mathematical model. Methods. Method of statistical evaluation of natural blockiness structure of the rock as well as quality of its fragmentation by means of explosive energy has been applied. Statistical studies have been carried out concerning the basic indices of rock fragmentation depending upon its largeness and block hardness. Purposely-designed experimental equipment has been applied for sampling analysis of the rock fracturing in the process of its drilling by means of rotary drilling rig. The abovementioned supported representativeness of the sampling. Findings. Statistical distributions of the rock blockiness structure in terms of each bar length involving its place within the drilling assembly as well as in terms of the well depth have been compiled. Visual comparison of experimental data and theoretical data has helped determine that the statistical distributions of natural blockiness structure of the rock have the closest correlation with gamma distribution which differential function has two positive parameters. Statistical dependence has been defined between drilling-and-blasting results and the total expenditures connected with hard rock mining. Originality. A concept of oversize crushing coefficient has been introduced; its statistical dependence upon the mined rock hardness and specific consumption of the applied explosive has been derived. An alternative has been proposed concerning changes in parameters of the differential function of the assumed gamma distribution relative to the predicted granulometric composition of rock mass. Practical implications. Economic and mathematical model has been developed involving a target function of the total expenditures connected with the listed operations as well as a set of constraints avoiding incorrect decisions. The optimization method makes it possible to control drilling-and-blasting parameters at each stage of hard rock mining.

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“…According to [1]- [5], [11], [12], [16] and [17] studies, efficiency of roller-bit drilling rig, being common for open pits, is determined as follows:…”

Section: Methodsmentioning

confidence: 99%

Mathematical model to optimize drilling-and-blasting operations in the process of open-pit hard rock mining

Shcherbakov¹,

Tymchenko²,

Bitimbayev³

et al. 2021

Min. miner. depos.

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“…The application of ultrahighfrequency (UHF) electric fields in conjunction with mechanical loading on rock during fragmentation is a promising approach [6], but it mainly pertains to the mining mass. Statistically justified is the feedbackbased method for managing blasting operations, which involves select ing their parameters based on realtime information about the natural blockiness, strength, and fracturing of the rock before blasting, as well as adjusting the implemented parameters based on operational control data of the particle size distribution of the mined material under similar blasting conditions.…”

mentioning

confidence: 99%

Mathematical substantiation and creation of information tools for optimal control of drilling and blasting in open-pit mine

Shcherbakov,

Tymchenko,

Moldabayev

et al. 2023

Nauk. visn. nat. hirn. univ.

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Purpose. To establish the rationale for the informational infrastructure necessary for effectively managing drilling and blasting operations in open-pit mining of rock deposits. To define the distribution function of natural rock blocks within the mass they comprise. To ensure timely access to data regarding the strength, fracturing characteristics of geological formations in their initial state, as well as the particle size distribution of mined materials obtained post-explosion. Methodology. Statistical modeling techniques were employed to analyze the natural blockiness of rock masses. The approach involved utilizing the principle of measuring the dimensions of individual rock fragments through a transmitting television tube and differentiating the obtained results using electronic pulse circuits. Electronic circuits capable of implementing statistical dependencies derived for drilling machines and loading excavators were introduced. Findings. Electronic devices have been proposed for real-time determination of the dimensions of natural rock blocks along their visible surfaces, as well as for assessing the strength, fracturing characteristics of rocks within the mass, and the particle size distribution of the mined material obtained during drilling and blasting operations. Originality. The study has established the distribution function of natural rock fragments within a mass, serving as a prototype for the distribution function of visible rock fragments located on the sidewall of a slope. The theoretical developments of the proposed electronic devices are protected by patents. Practical value. The presented tools for obtaining real-time, objective information about the natural blockiness, strength, and fracturing characteristics of rock formations in their initial state (before blasting), as well as relationship of these indicators with the particle size distribution of mined material obtained through blasting. These a tangible opportunity to implement optimal management of the entire blasting process, which will enable the enhancement of the technical and economic performance of open-pit mining

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Use of the Modified Method of Parameter Continuation in Nonlinear Dynamics

Andrianov

Олевский

Olevska

2020

Advanced Structured Materials

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Verification of applicability in space domain of the inverse filtering with evolution control for reconstruction of images obtained by radar scanning

Cited by 6 publications

References 12 publications

Mathematical model to optimize drilling-and-blasting operations in the process of open-pit hard rock mining

Mathematical model to optimize drilling-and-blasting operations in the process of open-pit hard rock mining

Mathematical substantiation and creation of information tools for optimal control of drilling and blasting in open-pit mine

Use of the Modified Method of Parameter Continuation in Nonlinear Dynamics

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