Zairova (62 résultats)

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PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

Taschenbuch. Etat : Neu. CONTROL OF DOWNHOLE PARAMETERS DURING DRILLING AND BLASTING OPERATIONS | Zairova F. Yu. (u. a.) | Taschenbuch | Englisch | 2026 | LAP LAMBERT Academic Publishing | EAN 9786209607998 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

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Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 100 pp. Englisch.

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The monograph considers the scientific and practical foundations for ensuring the stability of the sides of deep open pits during drilling and blasting operations. A comprehensive analysis of theoretical research and industrial experience of open pit mining of mineral deposits, aimed at establishing the rational parameters of the sides and ledges of open pits is carried out. Particular attention is paid to the study of physical and mechanical properties of rocks forming the instrument massif, as well as the assessment of their influence on the stability of slopes.The results of physical and mathematical modeling of seismic impact of explosions of dispersed borehole explosive charges are presented. On the basis of the obtained theoretical and experimental results the effective methods of rock mass state control are proposed to ensure the stability of the sides of deep quarries. The schemes of orientation of rows of boreholes at mass explosions, and also seismic safe way of blasting operations in the near-contour zone of a quarry are developed. The technology of scarp slope formation on the limiting contour of the quarry with the use of inclined contour boreholes is proposed. 104 pp. Englisch.…

Taschenbuch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The monograph presents the results of scientific research aimed at increasing the efficiency of drilling and blasting operations by extending the duration of explosive impact on rock masses. The main focus is on improving the design of borehole explosive charges and optimizing stemming parameters. The physical processes of interaction between detonation products and stemming material, as well as the patterns of stemming movement in the borehole, taking into account external factors, are considered. Mathematical models for predicting the granulometric composition of rock fragmentation products have been developed. New technological solutions have been proposed that ensure improved fragmentation quality and drilling and blasting efficiency. The monograph is intended for researchers, practicing engineers, doctoral students, applicants, master's students, and students of mining specialties engaged in improving blasting technologies and increasing the efficiency of rock fragmentation. 144 pp. Englisch.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The monograph is dedicated to the issues of ore quality management in the open-pit mining of mineral deposits. It examines the theoretical foundations of ore stream quality formation, factors affecting the stability of ore quality indicators at all stages of extraction, and modern methods for monitoring, regulating, and managing the quality of mineral raw materials. Special attention is given to the influence of ore quality on enrichment and metallurgical processing, the application of probabilistic and statistical methods for assessing quality variability, and the analysis of geological, technological, organizational-technical, and economic factors that determine the effectiveness of ore stream management. The book presents criteria for assessing the quality of ore reserves, the principles and stages of ore quality management during mining, and issues related to integrating quality management into the overall mining technology management system. A separate chapter is devoted to the practical experience of managing ore stream quality at the Muruntau open-pit mine, as well as methods for forming the ore stream during the combined development of natural and technogenic deposits.…

Taschenbuch. Etat : Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The monograph considers the scientific and practical foundations for ensuring the stability of the sides of deep open pits during drilling and blasting operations. A comprehensive analysis of theoretical research and industrial experience of open pit mining of mineral deposits, aimed at establishing the rational parameters of the sides and ledges of open pits is carried out. Particular attention is paid to the study of physical and mechanical properties of rocks forming the instrument massif, as well as the assessment of their influence on the stability of slopes.The results of physical and mathematical modeling of seismic impact of explosions of dispersed borehole explosive charges are presented. On the basis of the obtained theoretical and experimental results the effective methods of rock mass state control are proposed to ensure the stability of the sides of deep quarries. The schemes of orientation of rows of boreholes at mass explosions, and also seismic safe way of blasting operations in the near-contour zone of a quarry are developed. The technology of scarp slope formation on the limiting contour of the quarry with the use of inclined contour boreholes is proposed.…