Improving the Method of Blasting Parameters Calculation in Construction of Horizontal and Inclined Excavation, for Example Mines of the Polar Division “Norilsk Nickel”

Kirsanov, A. A.; Vokhmin, Sergey A.; Kurchin, George S.

doi:10.17516/1999-494x-2015-8-4-396-405

Cited by 2 publications

(7 citation statements)

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“…In accordance with [2][3][4], this approach results in saving of explosives and hole number reduction. However, no comprehensive comparison of hole spacing calculation methods using the same input data was conducted, since a very detailed (from the physics perspective) simulation model of blasting must be designed for this purpose, so it makes no sense to discuss significant advantages of one calculation approach over another for the time being.…”

Section: Fig 1 Approach To Drillhole Spacing Configuration Based On Radiisupporting

confidence: 57%

“…Contemporary approaches to computation of blasting pattern make provision for dividing the holes according to their purpose into cutting, cropper and intermediate holes (for instance, refer to [2][3][4]). Approaches as per such division are based on estimation of shear zone and fracture zone radii in accordance with the theory of rock blasting developed by B.N.…”

Section: Methodsmentioning

confidence: 99%

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Procedure of computation and automatic marking of drill hole spacing at excavation of horizontal workings

2020

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Contemporary approaches and techniques impacting subsurface penetration performance and penetration rate are studied and analyzed. Two main dimensions are identified, and the works performed during operation were compared. A solution based on implementation of modular architecture of the system with optional connection of modules, performing computations according to various techniques, enabling comparison of calculation results and selection of the most effective option, is proposed. A computational experiment based on real-objects data was conducted. The factors effecting drilling-and-blasting operations were identified during its course. A model designing the optical projections over targeted drill holes is also obtained. The proposed approach is more effective and accurate than manual application of drill hole spacing by paint; in addition, is saves a lot of time required for setting-up. Another highlighted advantage of the developed approach is high quality and accuracy at marking of the drill hole spacing for blasting pattern in accordance with geometrical features of the surfaces, vs. approaches and techniques used at preparation to drilling earlier. Aside from that, a clear trend of consistent improvement and perfection by means of application of intelligent algorithm is observed in this scope.

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Section: Fig 1 Approach To Drillhole Spacing Configuration Based On Radiisupporting

confidence: 57%

Section: Methodsmentioning

confidence: 99%

Procedure of computation and automatic marking of drill hole spacing at excavation of horizontal workings

2020

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“…However, the connection between these explosion results is theoretically not substantiated. The calculation formulas for crushing and cracking zones proposed in Kirsanov et al (2015) are empirical. They contain many indicators that require justification.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, in works like Kutuzov (2007), Kutuzov and Andrievsky (2002), Khomenko et al (2011), Labinsky (2013), Vokhmin et al (2014, Kirsanov et al (2015), Kozyrev and Fattakhov (2007), Langefors and Kihlström (1978), Hustrulid and Bullock (2001), Catalan and Onederra (2016), Chandrakar et al (2021), Chai et al (2019), Chakraborty et al (1998), andLu et al (2011), methods for determining the parameters of drilling and blasting operations in various specific conditions, based on experimental data, are given. They lack their theoretical justification using the strength, elastic properties of rocks, and detonation and density characteristics of the explosive used.…”

Section: Introductionmentioning

confidence: 99%

“…Until now, the parameters of the location of blasthole charges in the development workings are mainly established on the basis of experimental data. The specific consumption of explosives is taken as the main criterion, which predetermines the required number of holes in a given underground mines (Kutuzov and Andrievsky 2002; Kozyrev and Fattakhov 2007; Kutuzov 2007; Khomenko et al 2011; Labinsky 2013; Vokhmin et al 2014; Kirsanov et al 2015). A similar situation takes place at foreign mining enterprises (Langefors and Kihlström 1978; Chakraborty et al 1998; Hustrulid and Bullock 2001; Lu et al 2011; Catalan and Onederra 2016; Chai et al 2019; Chandrakar et al 2021).…”

Section: Introductionmentioning

confidence: 99%

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Computer-aided design of rational parameters for the location of blasthole charges in horizontal underground development

Rakishev,

Orynbay,

Mussakhan

et al. 2022

Mining Technology: Transactions of the Institutions of Mining a

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The article substantiates a stage-by-stage physical model of destruction of a real rock mass. On its basis, the key results of an explosion in a solid medium were determined: the strength characteristic of rocks under conditions of all-round explosive loading, the relative limiting radius of the blast cavity, the radii of the zones of fine crushing and radial cracks, and the principle of the rational arrangement of charges in the blasted block was formulated. Using this principle, an analytical method has been developed for determining the rational parameters of the location of charges in the face of preparatory workings and their computer-aided design. Experimental explosions carried out in the underground mines of Kazakhmys Corporation LLP confirmed the operability of the proposed automated design of drilling and blasting operations in horizontal underground workings. The proposed results are in good agreement with the data presented in the works of a number of world authors.

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Improving the Method of Blasting Parameters Calculation in Construction of Horizontal and Inclined Excavation, for Example Mines of the Polar Division “Norilsk Nickel”

Cited by 2 publications

References 1 publication

Procedure of computation and automatic marking of drill hole spacing at excavation of horizontal workings

Procedure of computation and automatic marking of drill hole spacing at excavation of horizontal workings

Computer-aided design of rational parameters for the location of blasthole charges in horizontal underground development

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